The phenotypic proportions which would be expected if the genes for red eyes and for white-banded wings were located on different chromosomes are:
(a)
1⁄4 wild-type eyes, wild-type wings1⁄4 red eyes, wild-type wings1⁄4 wild-type eyes, white-banded wings1⁄4 red eyes, white-banded wingsWhat is the distance and rate of recombination?The distance between the genes is four map units.
The rate of recombination between the genes for red eyes and those for white-banded wings is 4%.
(b)
The F1 heterozygote inherited a chromosome with alleles for red eyes and white-banded wings (re wb) from one parent and a chromosome with alleles for wild-type eyes and wild-type wings (re+ wb+) from the other parent. These are therefore the phenotypes of the nonrecombinant progeny, present in the highest numbers. The recombinants are the 19 with red eyes, wild-type wings and 16 with wild-type eyes, and white-banded wings.
RF = recombinants/total progeny × 100% = (19 + 16)/879 × 100% = 4.0%
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Considering pnpp → pnp reaction, would you expect to see more intense or pale color for the reaction that contain the inhibitor? explain
We would not expect see the pale color in presence of inhibitor in PNPP-PNP reaction. PNPP ( P- nitrophenylphosphate) is chromogenic substance for alkaline phosphate , which is clear yellow color. PNP (P- nitro-phenol ) is a colorless and acidic solution.
PNP is stronger acid and it is used as a manufacture drugs, fungicies, insecticides and dyes . Over inhalation of 4-nitro-phenol can causes headache, drowsiness , nausea, and cyanosis.
PNPP is used for detecting alkaline phosphate in ELISA applications. It sis non proteinaceous non -specific substance used to assay protein , alkaline and acid phosphates. And its yellow color is because of maximum of absorbance at 405 nm.
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The brain relies solely on ________ as its energy source. if it is deprived of this substrate, the cells soon die.
The brain relies solely on "glucose" as its energy source. if it is deprived of this substrate, the cells soon die because during the fasting state, proteins and fats are transformed to glucose.
What is glucose?The primary form of glucose in the body, glucose serves as the body's cells' main source of energy. Glucose can be produced by the body from other chemicals or it can be obtained from the meals we eat.
The bloodstream carries glucose to the cells. Insulin is one of many hormones that regulate blood glucose levels.
Some key points of glucose are-
The primary sugar in your blood is called blood sugar, or glucose. Your body uses it as its primary source of energy, and it originates from of the food you eat. All of the cells in your body receive glucose from your blood to be used as fuel.Diabetes is a condition in which you have too high blood sugar levels. Possessing too much sugar in your blood might have major consequences over time. You might occasionally experience issues with too low or too high blood sugar even if your don't have diabetes. Maintaining a regular eating, exercise, and medication regimen can assist.To know more about glucose, here
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When a single gene locus affects more than one trait, this is called ____________ .
When a single gene locus affects more than one trait, this is called
PLEIOTROPY
What is pleiotropy?It is known as "PLEIOTROPY" when a single locus affects two or more phenotypic qualities that are seemingly unrelated to one another. This phenomenon is frequently referred to as a single mutation that impacts two or more wild-type attributes. When two or more qualities reliably segregate with a particular mutation, that mutation is referred to as pleiotropic. The research of pleiotropic genes often involves evaluation of segregation patterns or, more recently, the mapping of mutant phenotypic traits to a single mutant locus.
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Which part of the large intestine helps fight parasites that have survived the previous digestive tract?
Answer:
All parts of the Large Intestine
Explanation:
The country or culture we live in can largely influence what we consider to be a normal portion of food. what is the name of this phenomenon?
The culture of our country where we live can largely influenced by both symbolic and material elements. For is cultural ,not nutritional.
There is one most important things which we remember in connection with cultural factors involves in food portion of our daily life.Consist of values, attitude, habits and customs, acquired by learning all are starts by the starting experience of our childhood.
Food habits are largely influence by oldest and most deeply entrenched aspects of many culture. In many culture food has a social roles. Social and cultural factors to health programs in general. Culture also play an important role in human nutrition and must be considered in either clinical or public health intervention particular in immigrant population.
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the ability of an organ to adjust to changes in either its internal or external environments is called
Answer:
Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis (“steady state”). These changes might be in the level of glucose or calcium in blood or in external temperatures. Homeostasis means to maintain dynamic equilibrium in the body
The appearance of colonies of streptococcus pneumoniae is related to the presence or absence of:_________
The appearance of colonies of streptococcus pneumoniae is related to the presence or absence of a polysaccharide coat.
Streptococcus pneumonia's extracellular polysaccharide capsule, the most important virulence factor , helps to initiate infection by allowing the bacterium to adhere to host cells and cause inflammation, while also providing protection from the host's immune system. Griffith conducted his experiments with Streptococcus pneumoniae, a bacterium that causes pneumonia. Griffith worked with two strains of this bacterium called rough (R) and smooth (S).Pneumococci produce pneumolysin, which breaks down hemoglobin into a green pigment that can be observed as a large green zone surrounding S. pneumoniae colonies growing on blood-agar plates.
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During which process does mrna bind to ribosomes, allowing a protein to be made?
Answer:
Translation
Explanation:
During translation, mRNA arrives at a ribosome. Within the ribosome, the mRNA temporarily binds to tRNA's via complementation. The tRNA's are responsible for gathering the relevant amino acids and creating a new protein.
Which of the following is a possible function of a protein?
A. Providing long-term energy storage
B. Insulating organisms
C. Storing genetic information
D. Sending signals across the organism
Answer:
C
Explanation:
Answer:
The correct answer is D, Sending signals across the organism.
Explanation:
If a cell is unable to progress beyond the g1 phase it is a likely indicator that the cell:___.
If a cell is unable to progress beyond the G1 phase it is a likely indicator that the cell was unable to reach to an appropriate size and lacked nutrients and growth factors.
What are cell cycle checkpoints?Cell cycle checkpoints are various mechanisms which control the progression of cell from one stage of the cycle to next.G1 checkpoint is located at the end of G1 and progression to S phase. It checks whether the cell has grown to a specific size and has accumulated nutrients and growth factors.It is also an indicator that the environment is not appropriate for cell division.G2 checkpoint is present at the transition from G2 to M phase. It checks whether the DNA has replicated properly or is there any damage in the DNA.M checkpoint is for transition from Metaphase to Anaphase. It checks whether the chromosomes have properly attached to the spindle fibers at the metaphase plate.Learn more about cell cycle checkpoints here:
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What are the two basic ""ingredients"" for the synthesis of thyroid hormone?
a. tyrosine and calcium
b. arginine and iodine
c. lysine and calcium
d. tyrosine and iodine
e. dopamine and iron
The synthesis of thyroid hormones requires the iodination of tyrosine molecules and the combination of two iodinated tyrosine residues. thus option D is correct.
What is the function of hormone ?The primary function of a hormone to regulate secreted hormone from endocrine gland is classified functionally as a tropic. The glands of endocrine system create chemical messengers called hormones and it can travel through the blood to various regions of the body.
There are different types of glands such as pituitary, thyroid, parathyroid, thymus, and adrenal glands where Hormones are created and secreted (released) by these glands,
These hormones are situated in the glands and secreted throughout your body, most important glands are adrenal glands include two glands located on top of the kidneys that produce the hormone cortisol.
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Why is it important to maintain the ph of blood and tissue fluids within normal limits? check all that apply
Enzymatic and other proteinic activity is limited by pH. 2) Slight deviations from normal pH can shut down metabolic pathways. 3) The structure and function of macromolecules are pH dependent.
How does the pH levels affect enzymes and proteins?
Enzymes, like all proteins, are polypeptidic molecules.
They need to get an accurate tridimensional structure to accomplish their function.
There is a limit of temperature and pH level at which they lose that structure and denaturalize.
pH changes
The most accurate configuration for the best catalytic performance depends on the charge of the lateral chains and the environmental pH.
Enzymes have ionizable chemical groups in the lateral chains of their amino acids.
Depending on the environmental pH, these groups will have a positive, negative, or neutral charge.
There is an optimum pH level at which enzymes get the best configuration to accomplish their functions.
Most enzymes are sensitive to any change in pH, which might drastically affect their activity. So every enzyme has its optimum pH level, and any slight deviations will cause the enzyme denaturalization, hence, its activity loss.
Whenever the enzyme loses its configuration, and hence, its function, the whole pathway in which it is involved is interrupted.
Options 2 and 3 are correct.
Slight deviations from normal pH can shut down metabolic pathways. The structure and function of macromolecules are pH dependent.You can learn more about enzymes and pH at
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Why is it important to maintain the ph of blood and tissue fluids within normal limits? check all that apply
Most enzymes require an acidic pH to function properly. Slight deviations from normal pH can shut down metabolic pathways. The structure and function of macromolecules are pH dependent. Hormones require a blood pH of at least 77 to function, A drop in blood pH causes dehydrationThe pH balance plays an important role in the chemical makeup of the human body.
REASONS :
A pH balance simply means that the acid-base balance in the body is generally maintained. The body needs to stay in homeostasis (a stable state) to function optimally.
1.Slight deviations from normal pH can shut down metabolic pathways.
2. The structure and function of macromolecules are pH dependent.
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Hybridomas, which produce monoclonal antibodies, are made by fusing cells of the immune system with.
Hybridoma cells resulting from the fusion of B lymphocytes and myeloma cells produce specific monoclonal antibodies.
A popular technique for creating monoclonal antibodies is hybridoma technology. After immunising mice with a particular antigen, antibody-producing B lymphocytes are extracted from the animals and united with immortal myeloma cell lines to create hybrid cells, also known as hybridoma cell lines.
What is Immune system ?A vast network of organs, white blood cells, proteins (antibodies), and chemicals make up your immune system.
Together, these components of your body's defence system guard you against external invaders (bacteria, viruses, parasites, and fungus) that can lead to illness, disease, and infection.A weakened immune system can momentarily be brought on by treatments like anticancer therapies and radiation therapy, despite the fact that it is primarily brought on by certain illnesses, starvation, and specific genetic problems.Learn more about Immune system here:
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Environmental and cultural factors don't affect someone's level of learning or academic performance that much. please select the best answer from the choices provided t f
It is false that environmental and cultural factors don't affect someone's level of learning or academic performance that much.
Cultural mores can cause conflict between various cultural groups.The setting in which an action is acceptable is influenced by culture.How environmental and cultural factors influence learning?The social environment has an impact on learning by providing a kid with a language and experience-rich setting that stimulates cognitive development, as well as by consistently rewarding them for learning.Cultural factors that might influence are:
Socialization during childhoodSociocultural closeness Ecological adaptationBiological consequencesLanguage are among the factors.Learn more about cultural factors here:
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Areas of the retina where many rods convergence on only a few ganglionic nerve cells will have?
An area of the retina where many rod cells will converge and only a few ganglionic nerve cells will be found in Blind Spot.
Where is the blind spot located?In the eyes, a natural blind spot, also known as the optic disc, develops where the blood vessels and axons of the ganglion cells depart to form the optic nerve. This is due to the lack of receptors (rods and cones) in this area of the retina. Artificial blind spots can arise when anything blocks light from reaching the photoreceptors, which are the rods and cones.
There are no photoreceptors in this location, hence there is no image detection.
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When a shockable rhythm is present during cardiac arrest and a biphasic manual defibrillator is available, the initial energy level selected should be:________
When shockable rhythm is present during cardiac arrest and biphasic manual defibrillator is available, the initial energy selected should be between 120 - 200J
If a person goes into cardiac arrest immediately start CPR and also provide oxygen and connect a defibrillator if available. Continue CPR for 5 cycles and check for shockable rhythm.
If a shockable rhythm is observed, use the biphasic manual defibrillator for the initial shock at 120 - 200 J based on the device. Then check for a pulse. If a pulse is present, begin the post resuscitation care.
If there is no pulse or asystolic, then start the CPR cycle again until the shockable rhythm is observed. Then shock at 200J using a biphasic manual defibrillator.
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If a member of your family suddenly develops chronic hoarseness and seems to have difficulty swallowing along with recurring stomach aches, this could be an issue with which cranial nerve?
After drying off a newborn he has a weak cry and poor muscle tone. what should you do?
We can give a blow by oxygen, so that babies can exchange air and the supplemental oxygen will during post birth.
What is Apgar test?
Baby's first cry will give a signal that his lungs work properly or not.
Similarly, hypotonia is condition of low muscle tone of baby after birth, and the symptoms include limp in arms.
These conditions can be diagnosed by Apgar test consist up one minute test and five minute test, tells about the entire birthing journey of a baby .
In this test, baby's color, respiratory effort, heart rate, muscle tone are detected and the maximum total score is ten, if baby get a score between 4 and 4, need assistance for breathing.
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A function of protein is to help maintain fluid distribution within the body by?
Function of protein is to help maintain fluid distribution within the body by Attracting water into compartments where it is needed.
Protein function by attracting water into the compartments with the help of Aquaporins.
Aquaporins regulate the flow of water into and out of the cells. For the proteins that float freely in a cell, the attraction is dependent on the arrangement of water molecules.
Aquaporins are integral membrane proteins serving as a channel for water transfer. They are present in the biological membranes. They form water channels and allows movement of water.
Proteins are water loving i.e. hydrophilic.
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Which of these organisms experience the highest rate of cellular respiration due to activity levels
A. Plants
B. Protozoa
C. Animals
D. Fungi
Answer: animals
Explanation:
Answer: It's Fungi.
Explanation:
What is the source of carbon for terrestrial plants? terrestrial plants acquire carbon from the .
During this process, plants cleave the carbon from the two oxygen molecules and terminate the oxygen back into the surrounding circumstances.
What is terrestrial plants?In terrestrial communities, plants transform atmospheric carbon dioxide into carbon-based combinations through photosynthesis (see above The photosynthetic operation). During this process, plants cleave the carbon from the two oxygen molecules and terminate the oxygen back into the surrounding circumstances.Many terrestrial manufacturers are not even helophytes but rainforest species that tolerate occasional inundation. Examples of these types of plants contain Syngonium, Philodendron, Adiantum, Aglaodorum, Aglaonema, Cordyline, Ophiopogon, and Physostegia.Terrestrial manufacturers are defined as any manufacturer that grows on, in, or from the land. By contrast, aquatic plants are manufacturers that thrive when their roots are submerged in moisture.To learn more about terrestrial plants, refer to:
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A human starts as ______ cell(s) and by the time they are an adult, they have ______ cell(s).
A differential rise in which white blood cells is typically seen with acute bacterial infections?
A/an ____________________, which is also known as a stroke, is damage to the brain that occurs when the blood flow to the brain is disrupted by a blockage of the blood supply.
Answer: transient ischemic attack
Damage to the brain, when the blood supply to the brain is disrupted is caused by cerebral infarction, also a type of stroke due to the blood supply problem.
What is cerebral infarction?Cerebral infarction - A stroke caused by a disruption or obstruction in blood flow to the brain also known as an ischemic stroke. A stroke, also known as a brain attack, happens when blood flow to a portion of the brain is cut off or when a blood artery in the brain bursts.
Parts of the brain are injured or die in either circumstance. Brain death (also known as brain stem death) occurs when a person on artificial life support loses all brain functioning.
This implies they will not be able to regain consciousness or breathe without assistance, a brain-dead individual is legally declared dead.
Therefore blood supply to the brain is damaged by cerebral infarction also known as stroke.
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when will natural selction occur
A. When there is competition
B. When there are unlimited resources
C. When there are no mutations in a species
D. When the population is very small
Natural selection will occur When there is competition.
Competition between living things is considered in Darwin's theory of the mechanism of evolution as a key component of the "fight for existence" and, consequently, as the foundation for natural selection.Members of the same species compete with one another within their own species. In the same location, for instance, two male birds of the same species can compete for mates. A fundamental element of natural selection is this kind of rivalry. It encourages a species' ability to evolve superior adaptations throughout time.The reduction of niche overlap when two species compete for the same finite resource may result in evolutionary changes in both species. Alternately, the competitively dominant species remains the same and may even be able to enlarge its niche, which limits the amount of available niche space.learn more about natural selection here: https://brainly.com/question/23929271
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Two species cooperating to help each other is known as ____________.
A. Leguminism
B. Commensalism
C. Parasitism
D. Mutualism
Answer:
Mutualism
Explanation:
Mutualism is when two species work together to benefit each other. Like there are certain species of bird that sit on rhinos and eat pests/bugs on them, this benefits the bird cuz it gets food and it benefits rhino cuz it does not get bugged (pun intended)
Anatomically modern human fossils were discovered in the european upper paleolithic site of group of answer choices cro-magnon, france. atapuerca, spain. petralona, greece. mauer, germany.
Anatomically modern human fossils were discovered in the First European Upper Paleothilic Site was Atapuerca, Spain.
Following are some facts related to the discovery:
One of the most astonishing discoverySkulls of human have been foundDNA analysis report prove them to be NeanderthalsEarliest human communities in EuropeReserve of physical natureLearn more about Neadherthals here, https://brainly.com/question/1182138
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What hormone is synthesized from molecules of the neurotransmitter serotonin in the pineal gland?
Melatonin hormone is synthesized from molecules of the neurotransmitter serotonin in the pineal gland.
Melatonin is produced from Serotonin which is itself produced by Tryptophan through a series of linked enzymatic reactions.
Melatonin is a hormone produced in response to darkness by the Pineal gland. It helps to maintain the Circadian Rhythm of the body and the Sleep wake cycle.
It plays an important role in regulating the menstrual cycle in females and in integrating the photo periods as well.
It is secreted mainly at the night time.
It is also called as the hormone of Darkness.
Serotonin, on the other hand, is a neurotransmitter (chemical) that carries messages between the nerve in the brain and co-relating them throughout the body.
It plays vital role in sleep, digestion and sexual desire.
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The prostate, seminal glands, and bulbo-urethral glands produce __________, the liquid medium in which sperm leaves the body.
The prostate, seminal glands, and bulbo-urethral glands produce Seminal fluid, the liquid medium in which sperm leaves the body.
What is Seminal fluid?The seminal vesicles and prostate gland make a whitish fluid called seminal fluid, which combines with sperm to form semen when a male is sexually stimulated.Fluid from seminal cysts is thick. It contains fructose, citric acid, proteins, potassium, inorganic phosphorus, and prostaglandins. When the fluid incorporates with sperm in the ejaculatory duct, the fructose evolves the direct source of energy for the sperm outside a man's body.semen, also named seminal fluid, is fluid that is ejected from the male reproductive tract and includes sperm cells, which are competent for fertilizing the female's eggs. Semen also prevents liquids that connect to form seminal plasma, which helps keep the sperm cells possible.To learn more about Seminal fluid, refer to:
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In a(n) ________ selection control structure, one path is taken if a condition is true and the other path is taken if the condition is false. boolean
It is useful to make a decision or comparison and then based on the result of that decision or comparison to select one of two paths and that condition must result in either true or false .
If condition is true then the program perform one set of task and if condition is false there may or may not be different sets of task to performs.When particular condition is true and ignore when condition is false is called Decision control structure.
In a decision selection control structure , one path is taken if a condition,Selection control structure which conditional statement of programming language which perform different computations.
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