Most proteins in living organisms are composed of 40 amino acid residues in total, and nine of those are crucial for human health.
Which majority of amino acids make up proteins in living things?
Only twenty different amino acids, each with a distinct side chain, make up proteins. Different chemistries can be found in the side chains of amino acids. The majority of amino acids contain side chains that are nonpolar.There are nine essential amino acids: tryptophanvalineisoleucine leucinelysinemethionine phenylalanine threonine methionineWhat Constitutes Proteins?
Amino acids are the basic units of proteins. They are tiny chemical compounds with an alpha (central) carbon coupled to an amino group, a carboxylic acid group, hydrogens, and a changeable element known as a side chain. A protein is made up of a lengthy chain of amino acids that are connected by peptide bonds. The biological process that links the carboxyl unit of one amino acid towards the amino group of a nearby amino acid results in the extraction of a water molecule, forming peptide bonds. The main structure of a protein is thought to be its linear amino acid sequence.Learn more about amino acids here:
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In the dna isolation process, ________ is used to break down the protein complexes and allow the dna molecules to easily precipitate.
In the DNA isolation process, ice cold 95% ethanol is used to break down the protein complexes and allow the DNA molecules to easily precipitate.
What is separation and isolation of DNA fragments?
The cutting of DNA by restriction endonucleases results in the fragments of DNA. These fragments can be separated by a technique known as gel electrophoresis.Since, DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix.The most commonly used matrix is agarose which is a natural polymer extracted from sea weeds.The DNA fragments separate (resolve) according to their size through sieving effect provided by the agarose gel. Hence, the smaller the fragment size, the farther it moves.The separated DNA fragments can be visualised only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation (you cannot see pure DNA fragments in the visible light and without staining). We can see bright orange coloured bands of DNA in a ethidium bromide stained gel exposed to UV light.The separated bands of DNA are cut out from the agarose gel and extracted from the gel piece. This step is known as elution.The DNA fragments purified in this way are used in constructing recombinant DNA by joining them with cloning vectors.To learn more about DNA isolation process: brainly.com/question/18316109
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The unique chemical structure of the cell wall of mycobacterium spp. is associated with the presence of:______.
The unique chemical structure of the cell wall of mycobacterium spp. is associated with the presence of N-glycolyl muramic acid and an increase in lipid content.
Mycobacteria have strong, four-layered cell walls that are exceedingly thick. Peptidoglycan makes up the first layer, whereas lipids make up the subsequent layers. In order to maintain appropriate osmotic stability, peptidoglycan performs crucial activities like stiffness and rigidity. Bacteria are resistant to environments that are acidic and alkaline due to the presence of lipids.
All Mycobacterium species can be identified by their thicker cell walls, which are waxy, hydrophobic and abundant in mycolic acids. This is a characteristic that sets them apart from many other bacterial species. The mycolic acids make the mycobacterium less prone to antibiotics. Additionally, these molecules aid the bacteria in tricking the immune system and then hiding from it.
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A 7 Tesla scanner, or 7T scanner is preferable to a 3T scanner in what scenarios?
Choices:
When we need a BOLD signal
When higher voxel resolution is required
When higher pixel resolution is required
To get Elon Musk's attention
C. The scenario described when a 7 Tesla scanner, or 7T scanner is used instead of 3T scanner is, "when higher pixel resolution is required"
What is pixel resolution?Pixels per inch and pixels per centimeter are measurements of the pixel density of an electronic image device, such as a computer monitor or television display, or image digitizing device such as a camera or image scanner.
A 7 Tesla scanner, or 7T scanner is preferable to a 3T scanner because the 7 Tesla scanner gives higher pixel resolution when compared to 3 Tesla scanner.
Thus, the scenario described when a 7 Tesla scanner, or 7T scanner is used instead of 3T scanner is, "when higher pixel resolution is required".
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Which pcs root operation is used for an adhesiolysis when adhesions are freed from a body part they are restricting?
Release pcs root operation is used for an adhesiolysis when adhesions are freed from a body part they are restricting.
What is release Root operations?Root operation is refers to the cutting of the upper or lower extremities.
What is adhesiolysis?Adhenolysis is the surgical procedure that removes abdominal adhesion to regain the normal anatomy and functionality of an organ.
What are adhesion?Adhesions are the bands of scar-like tissue that form inside of the organ that cause tissue or organ to stick together.
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The process in which messenger rna (mrna) copies genetic information from dna before carrying it to the ribosome is called________.
Answer:
In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription
Explanation:
The diamond-shaped ________ muscle originates on the middle of the neck and back, and inserts on the clavicles and scapular spines, covering the upper back and extending to the base of the skull.
The diamond-shaped trapezius muscle originates on the middle of the neck and back, and inserts on the clavicles and scapular spines, covering the upper back and extending to the base of the skull.
What is trapezius?The trapezius is a muscle that starts at the base of your neck, goes across your shoulders and extends to the middle of your back.
The trapezius helps you move your head, neck, arms, shoulders and torso.
It also stabilizes your spine and helps with posture.
Thus, the diamond-shaped trapezius muscle originates on the middle of the neck and back, and inserts on the clavicles and scapular spines, covering the upper back and extending to the base of the skull.
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Migration of a random few individuals from one population to a new area to establish a new population is an example of:__________
Founder effect is the example of migration of a random few individuals from one population to a new area to establish a new population.Thus, option C is correct.
What is migration?
Migration is defined as movement of individuals from one place to another in search of employment and livelihood.Some people lives permanently after migration and some returns back to the native place.
Internal migration is the type of migration in which people migrate within state and country.
External migration is the migration to different state and country.
The phenomenon of moving into new place is known as immigration.
Seasonal migration is the migration in which animals or humans migrate in a particular season due to climatic condition.
Therefore,migration of a random few individuals from one population to a new area to establish a new population is an example of founder effect.
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The question is seems to be incomplete the question is may be like that
Migration of a random few individuals from one population to a new area to establish a new population is an example of _
A) bottleneck effect
B) mutation
C) founder effect
D) selection
Acid rain is an example of ________ deposition. photochemical industrial dry wet aerosol.
Acid rain is an example acid of deposition. Photochemical industry dry wet aerosol. It is appear in many forms . Wet deposition is rain, sleet, snow and fog that has become more acidic than normal.
Dry deposition is another form of acid deposition and this is when gases and dust particles become acidic. Gases such as - sulphur dioxide and nitrogen oxides change into acids when they contact with water.
When emission from the combustion of fossil fuel and other industrial processes undergo complex chemical reaction in the atmosphere and fall to the earth is wet deposition or dry deposition like - dry particles , gas.
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Which condition would most likely lead to an increase in the frequency of an altruistic behavior in a population?.
The beneficiaries of the behavior are related to the individual performing it. Groups that differ in terms of altruistic and selfish genotypes have differential reproduction or survival.
What is Altruistic behavior ?Altruism is the practise of acting in a way that benefits another person at the expense of oneself. Giving someone else your lunch, for instance, is altruistic since it satisfies their need while also leaving you hungry.
Nepotistic altruism, reciprocal altruism (or mutualism), group-based altruism, and moral altruism are the four categories of altruism.
Along with cortical areas like the medial prefrontal cortex and the temporoparietal junction, the desire to act altruistically is linked to higher activity in limbic areas like the nucleus accumbens and anterior cingulate cortex.Learn more about Altruistic behavior here:
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The total volume of blood in the body of an adult male is approximately ________ liters
Which proteins can activate free nerve endings, such as itch receptors and nociceptors?
Kinins, antigens, histamines, potassium ions, prostaglandins can activate free nerve endings. Thus, option A, B, C, D, E are correct.
What is nociceptors ?
A specialized receptor in some first order neurons activated through various noxious stimuli known as nociceptors.
These receptors are unencapsulated cutaneous receptors as It is located at the free nerve endings of the primary afferent neuron.
It can be seen in the skin, muscle, joints, bone, and some brain parts.
There are different types of nociceptors such as mechanical, Chemical, Thermal, mechano-thermal nociceptors and Polymodal nociceptors.
Hence, option A,B,C,D and E are correct.
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Your question was incomplete. The probable question was
Which proteins can activate free nerve endings, such as itch receptors and nociceptors? Select all that apply.
Select one or more:
acetylcholine
histamines
prostaglandins
kinins
glucose
potassium ions
antigens
When a dna change converts an amino acid codon to a different amino acid codon. What type of mutation is this?
What are the chemical changes that occur in your blood that will potentially stimulate an increase in ventilation during and shortly after exercise?
More CO2 and H+ is generated, enhancing oxygen unloading in the muscles in the process.
When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a minute when you are resting, up to about 40–60 times a minute during exercise.
The gas exchange requirements of the lung increase due to an increased oxygen consumption and increased carbon dioxide production. In addition, both the respiratory rate and tidal volume increase, hence alveolar ventilation also increases. This increases the rate of gas exchange and minute volume.
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A(n) __________ is a layer of protein or glycoprotein that exhibits a pattern resembling floor tiles.
A coating of protein or glycoprotein that looks like floor tiles is called an "S-layer."
Description of "S-layer":
A paracrystalline surface layer(S-layer) serves as the most prevalent kind of cell wall in varieties of Archaea. It is made up of a layer that is consistently organized and is made of molecules of protein or glycoprotein that lock together. possesses a tile-like pattern in electron micrographs. S-layers typically range in thickness from 5 to 25 nm and feature similar holes that are 2 to 8 nm in diameter, however, this depends on the species. S-layers have been discovered in a number of bacterial species.
Functions and importance of "S-layer" in infection-causing bacteria:
Numerous potential uses for the S-layer have been mentioned. They consist of the following-
The S-layer may shield bacteria from dangerous enzymes, and pH fluctuations, the carnivorous microbe Bdellovibrio, is a parasitic microbe that really exploits its motility to infiltrate other bacteria and proliferate within its cell, and from phages.The S-layer can operate as an adhesin, allowing the bacteria to colonize and withstand washing by adhering to host tissues and external sites.The S-layer may increase virulence by shielding the bacteria from phagocytosis and complement assault.A coarse molecular filter might be formed by the S-layer.Learn more about S-layer here:
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The water stored in the open spaces within underground rocks and unconsolidated material is called:_________
The water stored in the open spaces within underground rocks and unconsolidated material is called groundwater.It found underground in the cracks and space in soil, sand and rocks.
The word groundwater or underground water is used to express the area. It means aquifer although this term is usually used to described water - bearing formation capable of yielding enough water to supply people uses.
Groundwater is the stored water and moves slowly through high permeable membrane rocks called aquifers. Water that travels down from the soil surface to underground and collected in the space between sediments and the rocks, which filled the empty space and this is called as saturated zone.
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A given mass of oxygen at room temperature occupies a volume of 500. 0 ml at 1. 50 atm pressure. what pressure must be applied to compress the gas to a volume of only 150. 0 ml?
5 atm pressure must be applied to compress the gas to a volume of only 150.0 ml.
GivenMass of oxygen at room temperature =500.0 ml
Volume of pressure = 50 atm pressure.
The gas to a volume = 150.0 ml
ExplanationThe volume decreases by the factor = 500.0 mL / 150.0 mL
= 10 / 3
The pressure of the gas increased by a factor of 10/3 , which would make its final value equal to
[tex]P_{final} = \frac{10}{3} * 1.50 atm[/tex]
= 5.00 atm
So, 5 atm pressure must be applied to compress the gas to a volume of only 150.0 ml.
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In the auditory system, hair cells are specialized receptors that respond to ____
In the auditory system, hair cells are specialized receptors that respond to mechanical sound vibration.
What are hair cells?In auditory system, hair cells are the sensory receptors that transduce mechanical sound waves into electrical energy.
These electrical energy are further passed to the brainstem and auditory cortex with the help of auditory nerves.
These cells are reside in the organ of Corti of the cochlea of the inner ear. The inner hair cell act as typical receptor as it is highly myelinated.
The mechanism of sound amplification by hair cells is based on the intracellular calcium influx.
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If you sorted 200 flies by eye color and body color, how many whole flies out of that 200 would you expect to exhibit each of the four phenotypes?
9:3:3:1 is the ratio.
From the given data,
We have a 9.8 two, ratio since we have 49/5, 15/5, 18/5, and 5/5.
This ratio resembles nine a little bit, which is what we inferred from the opposition's score.
When the two relevant genes exhibit independent assortment, this is the result. Therefore, the chromosomes/genes are not connected.
We are finally getting a ratio of 9:3:3:1
In flies, two possible outcomes for the body color phenotype is black and brown.
Whereas in eye color we have white eye and red eye.
Here, white eye is recessive and red eye is dominant
What does the independent assortment law entail? According to Mendel's law of independent assortment, the alleles of two or more distinct genes are independently selected into gametes. In other words, an allele for one gene does not affect the allele for another gene that a gamete acquires.Where can I find independent assortment?Meiosis I of gamete production, when homologous pairs line up in random orientations at the center of the cell as they prepare to split, provides the physical foundation for the law of independent assortment.
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A scientist is researching Cystic Fibrosis. He is
studying what type of disease?
A. Somatic disease
B. Chromosomal disease
C. Single-Gene disease
D. Multifactorial disease
he is studying Somatic disease.
Which of these species is not an acidic oxide?
a. p4o10
b. p4o6
c. so3
d. co
e. sio2
d. CO (carbon monoxide) is not an acidic oxide.
Acidic oxides are those oxides which either act as acceptors of the hydroxide ions (OH-) and function as a Lewis acid or they produce an acidic solution when added to water. Examples of acidic oxides are P4O10 (Phosphorus pentoxide), P4O6 (Tetraphosphorus hexaoxide), SO3 (Sulfur trioxide), SiO2 (Silicon dioxide) etc.
Neutral oxides do not show either of the basic or acidic properties. Due to this fact, they do not form salts when they react with acids or bases. Examples of neutral oxides include CO (carbon monoxide), NO (Nitric oxide), N2O (Nitrous oxide) etc.
Hence, option d is correct.
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Which of the following statements best expresses the concept of punctuated equilibrium?
A. Small variations gradually accumulate in evolving lineages over periods of millions of years.
B. Stability is achieved when selection favors the heterozygote, while both types of homozygotes are at a relative disadvantage.
C. Random mating ensures that the proportions of genotypes in a population remain unchanged from generation to generation.
D. Evolutionary changes consist of rapid births of speciation alternating with long periods in which species remain essentially unmodified.
Answer: D
Explanation:
Nimodipine is a lipid-insoluble ca2 channel antagonist that can recognize dihydropyridine receptors. what effect might it have on cardiac contractile cells?
The impact of Nimodipine on cardiac contractile cells is that Ca[tex]2^{+}[/tex] would enter into the cell independent of electrical stimulation and would stimulate Ca[tex]2^{+}[/tex] release to produce more frequent cardiac muscle contractions.
The voltage-gated L-type calcium channels located on the smooth muscle cells of arterial blood arteries are what dihydropyridines bind to and block to function. Voltage-gated L-type calcium channels are ones that typically open in response to an electrical signal, often known as an action potential.
A calcium channel blocker, nimodipine. Calcium ions, which enter smooth muscle cells as slow ionic transmembrane currents after depolarization, are necessary for the contractile actions of these cells. It's likely that Nimodipine will improve the cardiovascular effects of other calcium channel blockers.
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the graph shows how the rate of photosynthesis of a plant varies with light intensity. interpret the graph and justify statement.
The graph shows that the rate of photosynthesis increases with an increase in light intensity.
Photosynthesis and light intensityLooking at the graph, the rate of photosynthesis is on the y-axis while carbon dioxide concentration is on the x-axis.
At low light intensity, the rate of photosynthesis increases with an increase in the concentration of carbon dioxide.
When the light intensity was increased from low to medium, the same trend as low-intensity light was recorded. However, the rate of photosynthesis doubles.
The rate of photosynthesis also increased with high light when carbon dioxide concentration increased. The photosynthesis rate was highest under intense light.
Under the 3 light conditions, it gets to a point that the rate of photosynthesis levels off, irrespective of the increase in the concentration of carbon dioxide.
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HELP PLS!! (I NEED ANSWERS BY TOMORROW PLEASEEEE) Kerry was investigating how the angle of incidence of radiant energy on a surface affects the rate of temperature rise of the surface. A paper pocket holding a thermometer was placed near a lamp. The paper pocket was then placed at various angles so that the angle of incidence of the radiant energy varied. Kerry made sure the distance to the lamp was the same for each of his trials. The following table shows the data recorded by Kerry. Using the data, describe the relation between the angle of incidence and the rate of temperature change.
Answer:
Hey there!
Explanation:
This is ur answer....
Refer to the attached pics...Hope it helps!
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To which hemisphere of the brain would the signals go when light reflects off an object and stimulates the retina of the region of the left eyeball closest to the nose?
When light reflects off an object and stimulates the retina of region of left eyeball closest to the nose, the signals would go to the right hemisphere of the brain.
The arrangement of human brain is in a way that the left part of our body is controlled by the right hemisphere and the right part of the body is controlled by the left hemisphere. However, the eye functions a bit different from the specified general phenomenon.
Both the halves of the brain receive information from each eye.
The objects seen by our left eye is sensed by the right half of our left eye and the information is sent to the right hemisphere.
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When an enzyme's activity is inactivated by heat or a change in pH, the enzyme is said to be When an enzyme's activity is inactivated by heat or a change in pH, the enzyme is said to be
Answer:
denatured
Explanation:
I hope this help
The _____ stage lasts approximately _____ week(s), beginning at conception.
a. fetal; 9
b. embryonic; 4
c. neonatal; 1
d. germinal; 2
The embryonic stage lasts approximately 4 week(s), beginning at conception. Details about stages of development can be found below.
What are the stages of development?The stages of development of a human is summarized into four stages as follows:
Embryonic stageGerminal stageFetal stageIn the embryonic stage of development, which occurs after conception, the baby is called an embryo. Embryonic stage lasts 4 weeks.
During the embryonic stage, the cells of the embryo (called embryonic stem cells) multiply and develop. They become the hundreds of different types of cells needed to make a whole human body.
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The basement membrane between the epidermis and dermis provides for adhesion and serves which function regarding molecule transportation?
A Final statement or concluding statement
Keratinocytes and fibroblasts' adhesion, mobility, and proliferation are controlled by the basement membrane. It also gives the epidermis structural stability.
What is epidermis?The epidermis is the thin, outer layer of skin that is visible to the eye and acts to protect the body. The epidermal layers comprise the stratum basale (the epidermis's lowest layer), the stratum spinosum, the stratum granulosum, the stratum lucidum, and the stratum corneum (the most superficial portion of the epidermis).
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You collect individuals from different allopatric populations of a leaf-eating beetle. In the laboratory, you conduct mate-choice experiments to assess levels of reproductive isolation among beetles from different populations. Assuming that ecological speciation occurred in the wild, which pattern should you expect?.
Less reproductive isolation among populations that share similar habitats
What is Reproductive Isolation?The reproductive isolation mechanisms are a set of evolutionary mechanisms, behavioral, and physiological processes that are essential for speciation.
They either prohibit individuals of other species from having children or guarantee that any children are infertile. When individuals or groups diverge in the time of various behaviors, such as foraging or mating, reproductive isolation can arise.
Toad species Bufo americanus and Bufo fowleri exhibit reproductive isolation due to changes in mating season. Members of these species can successfully cross in the lab, resulting in healthy, viable hybrids. Temporal isolation, ecological isolation, behavioral isolation, and mechanical isolation are the three modes.
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If i cut my finger, _________ helps me heal and ensures that my skin type is the same
If i cut my finger, mitotic division in the finger cells helps me heal and ensures that my skin type is the same.
We are able to expand, recover from injuries, and replace damaged cells because of mitosis. Since this is the only method that these cells can replicate, mitosis is also crucial in creatures that reproduce asexually. This is the one essential mechanism that keeps asexual creature populations alive. It is widely known that an open (incised) skin wound that penetrates the epidermis and into the dermis beneath causes an abnormally quick spike in the epidermal mitotic rate within 24 hours. The highest rate of mitosis occurs in cells that are closest to the edge of the wound, and the lowest rate is close to the usual rate, or approximately 1 mm.learn more about mitotic division here: https://brainly.com/question/19058180
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