The typing of human blood is determined by three alleles: A, B, and O. Alleles A and B are codominant to one another and O is recessive to both alleles, A and B.

AA/ AO – type A blood, AB – type AB blood, BB/ BO – type B blood, OO – type O blood.

A woman who is homozygous for type B blood marries a man who is heterozygous for type A.

What is the genotype ratio of their offspring?
What is the phenotype ratio of their offspring?

Answer:A

Explanation:

Answer:

A)Glycolysis is one method that cells use to produce energy.

B)a sequence of reactions in the living organism in which oxidation of acetic acid or acetyl equivalent provides energy for storage in phosphate bonds called also citric acid cycle, tricarboxylic acid cycle.

C)electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation.

Answer:

Brooke would likely be diagnosed with major depressive disorder because she's telling herself she has no energy showing lack of interest in what's planned and in other words 'lazy'

She might be suffering from major depressive disorder. As she is lacking the energy to do her work and it could be because of the drained energy in her mind.

In this situation a person is either living alone or going through some difficult situations and unable to cope through the situations.

In the cases of excess depression the person is struggling through the mental thoughts and are not able to do their work properly. People like these are usually absent minded and they usually are lacking interest in the crowd.

In such situation the person should go to the family gatherings and the outings, learn to go out of their comfort zone. In such situations people like these situations should talk about their feelings out and try to find the conclusion with a wise situation.

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Answer:

A mutation

What can cause changes in a DNA sequence?

A mutation is a change in the DNA sequence. There are several different methods by which mutation happens. Of course, chemically produced mutations receive the most media attention. There are a wide range of substances that can cause mutations, usually by attaching to the DNA and causing it to break, requiring an incomplete repair, or by preventing DNA replication, forcing the replication machinery to repeat the DNA poorly.

However, other factors, such as exposure to radiation or light, can also cause DNA mutations. In reality, UV and X ray light are known to cause mutations by changing the DNA's base composition or causing DNA breaks.

Mutations are also spontaneously caused by DNA replication. Although it occurs extremely infrequently, the replication complex does occasionally make mistakes and insert the incorrect DNA base, which leads to a significant amount of mutations over the course of generations.

Thank you,

Eddie

A mutation in the DNA sequence can be beneficial, harmful, or neither, depending on its impact on the organism.

Mutations—changes in the DNA sequence—can affect an organism. Mutations that improve survival and reproduction are helpful. Mutations can make an organism disease-resistant or adaptable.

Mutations can affect the organism's health or fitness. Mutations can cause genetic diseases, diminished fertility, and lower survival rates. Neutral mutations don't affect the organism's phenotypic or fitness. They may occur in non-coding DNA or silently modify the genetic code, leaving the amino acid sequence of a protein untouched.

Mutations' effects depend on their genomic location, gene function, and environment. Some mutations help evolution and adaptability, whereas others harm individuals or populations.

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hammer

knife

fire

pottery (cooking)

rope (fishing)

Explanation:

Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

The demands of a different environment or the characteristics of the members of the new group will differentiate the new species from their ancestors.

Allopatric speciation (1) occurs when a species separates into two separate groups which are isolated from one another.

Each species develops differently based on the demands of their unique habitat or the genetic characteristics of the group that are passed on to offspring.

When small groups of individuals break off from the larger group and form a new species, this is called peripatric speciation (2).

The main difference between allopatric speciation and peripatric speciation is that in peripatric speciation, one group is much smaller than the other.

Like allopatric and peripatric speciation, different habitats influence the development of different species in parapatric speciation.

Sometimes a species that is formed by parapatric speciation is especially suited to survive in a different kind of environment than the original species.

Sympatric speciation occurs when there are no physical barriers preventing any members of a species from mating with another, and all members are in close proximity to one another.

The two types of maggots are not different species yet, but many scientists believe they are undergoing the process of sympatric speciation.

The  flash of light thus associated can now be called the conditioned stimulus.

The term stimulus has to do with response to particular occurrence. This is well captured in the area of behavioral psychology. We know that the organism can be trained to respond to a certain stimulus when it is presented.

Now if a stimulus elicits a particular reaction and then another stimulus is presented immediately after the first one such that the organism learns to associate the second stimulus with the first, the organism would over time begin to respond to the second stimulus in the same manner as the first.

Now we can see that in this case, the light flash follows the POP sound. This implies that organism would overtime associate the sound and the light. This flash of light thus associated can now be called the conditioned stimulus.

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Answer:

C. Organs are composed of tissues , which are composed of cells .

The animals are generally organized in a fashion that, the organism is composed of organs, which are composed of tissue, and tissues are composed of cells. So, option C is correct.

The cells are called the building block of life and come last under this hierarchy.

The hierarchy which follows the organization structure of cells, tissues, and organs follows the given criteria :

The cells are made up of cellular organelles, which are organized in a fashion that is required for the specific function of a cell.

The collection of a group of cells having the same physiological structure and function makes up the tissue.

The tissues with the same function and structural organization collectively make up the organs.

The different kinds of organs, contributing to myriads of functions of the body, make up a human body, live and well functioning.

Therefore, option C is correct.

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Answer:

A mass of cells that have lost all restraint in division and are piled on top of one another is called a Tumor.

Answer:

genetic

Explanation:

DNA is a form of genetic material. DNA contains the necessary instructions for growth and development.

Living organisms have genetic material which codes for its growth and development.

Thus, Every living creature shares a few traits. The instructions for inheritance are encoded in the genetic code, and children typically resemble their parents.

Asexual reproduction produces children that share the characteristics of their parents. Offspring from sexual reproduction are sometimes different from their parents.

Energy and resources are used by living things to expand, change, and procreate. A group of chemical processes known as metabolic reactions are involved in these life activities.

Organisms have the ability to recognize changes in their surroundings and react to these stimuli. Most living things need their internal surroundings to stay within a pretty narrow range in order to sustain equilibrium.

Thus, Living organisms have genetic material which codes for its growth and development.

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Formamide molecules are added to an electrophoresis buffer for the purpose of denaturing DNA.

A laboratory procedure called electrophoresis is used to divide DNA, RNA, or protein molecules according to their size and electrical charge. The molecules are moved by an electric current through a gel or other matrix. In the case of Denaturing Gradient Gel Electrophoresis (DGGE), the gradient can be an electrical field or a denaturant such as a solution of urea and formamide.

Size, charge, and other characteristics are used in electrophoresis to separate macromolecules like protein and nucleic acids. Scientists utilize buffer to transport the charge through the gel for electrophoresis that separates by charge. Additionally, the buffer keeps the gel's pH steady, reducing alterations that would take place in the protein or nucleic acid if the pH were to become unstable.

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A terrestrial ecosystem is a population of land-based species and the relationships between biotic and abiotic elements in a specific space. The tundra, taigas, temperate deciduous woods, tropical rainforests, grasslands, and deserts are a few examples of terrestrial ecosystems. A location's temperature range, average annual precipitation, soil type, and amount of light all affect the sort of terrestrial ecosystem that can be found there.

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Answer:

The probability would be 0.

The probability of the population will be 0.

A discrete groups of individuals with identifiable characteristics called a population.

It consists of a same group of species resides in a  particular geographical location and interbreed there.

In a population not all  individuals are able to survive and reproduce because of  genetic variations in them.

Finite Population or countable population in which the population can be countable.

Infinite Population or uncountable population in which the counting if the  population is impossible.

Existent Population of concrete individuals, whose unit is available in solid form.

Hypothetical Population whose unit is not available known as the hypothetical.

Most of the populations are unstable due to the presence of various physical factors and it act as limiting factors against exponential growth.

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Answer:

A. Food was turned into blood, and when it reached the heart it was mixed with air to make 'spirit.'

Explanation:

Galen believed a theory of pneuma. That is, he believed that blood contains "vital spirits" released into it by the brain.

Answer:

use of technology and life span and also ability to reason

Answer:

The organ is the female reproductive organ , the uterus

and the green arrow points to the cervix

Answer:

A sharp knife can cut objects more easily compared to a blunt knife because a sharp knife applies more pressure on the object.

Answer:

because they wear high heels.

Explanation:

The correct answer is Formaldehyde.

Building materials such as particleboard, plywood, and other pressed-wood products contain formaldehyde, a colorless, pungent-smelling, combustible chemical that is generated industrially. It is additionally frequently utilized in morgues and medical labs as a preservative, fungicide, germicide, disinfectant, and preservative. Environmental sources of formaldehyde are also common. It is created during the natural chemical reactions that occur in most living things as well as during the decomposition of plant matter in soil. It can also be detected in tobacco smoke as a byproduct of combustion. Inhaling formaldehyde gas or vapor from the air or absorbing formaldehyde-containing substances via the skin are the two main ways that people are exposed.

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After recent renovations to an office building, employees in the building begin complaining of nausea and burning in their eyes and throat. What type of exposure is most likely causing these reactions?

Lead

Asbestos

Pesticides

Formaldehyde

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Answer:

The function of ATP synthase is to synthesize ATP from ADP and inorganic phosphate (Pi) in the F1 sector. This is possible due to energy derived from a gradient of protons which cross the inner mitochondrial membrane from the intermembrane space into the matrix through the Fo portion of the enzyme

Explanation:

hope it will help you

The process of diffusion does not require any energy because the particles move towards equilibrium (option B).

Diffusion is the movement of fluids (gases) from a region of high concentration toward regions of lower concentration.

Diffusion is termed a passive transport because it does not require energy to occur.

Diffusion as a transport mechanism does not require energy in form of ATP because it moves molecules towards/down a concentration gradient.

Therefore, the process of diffusion does not require any energy because the particles move towards equilibrium.

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There wouldn't be any secondary consumers in that ecosystem without the primary consumers since there would be no way for carnivores or secondary consumers to get their energy.

A primary consumer is important to an ecosystem. They aid in the energy exchange that is necessary for an ecosystem to function properly and avoid collapse. Only primary consumers have the capacity to "harvest" the energy held in producers.

Plants, who are the primary producers, use sunlight to make their own food or photosynthesis. And hence they are known as autotrophs. Following that, primary consumers eat plants. The primary consumers are then eaten for food by secondary and tertiary consumers.

The organisms at the top of the food chain, including humans, then perish. Then, for food, decomposers like bacteria and fungi feed on the remnants. The chemical components of those nutrients are then recycled back into the ecosystem by these decomposers.

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Answer:

reflex angle is an angle that measures more than 180 degrees and less than 360 degrees

Answer:

more then 180 degree and less then 360 degree

Answer:

A. Mutations in genetic material

Explanation:

Genetic disorders are typically inherited (passed down) in either a dominant or recessive manner.

Genetic disorders can be caused by a mutation in one gene (or more), by a combination of gene mutations and environmental factors or by damage to chromosomes.

Answer:

C. Nitrogen

Explanation:

The composition of air is as follows:

nitrogen 78%

Oxygen 21%

carbon dioxide 0.03 %

water vapour 0.2 to 0.4 %

Answer:

Feeling hot and dizzy

Explanation:

Vertigo, sweating, feeling dizzy, and a sense of impending unconsciousness or passing out are other symptoms.

Agoraphobia may be characterized by feeling hot and dizzy. The correct option is C.

An uncommon form of anxiety condition is agoraphobia. Your fears prevent you from going out into the world if you have them. You steer clear of particular locations and circumstances because you fear getting stuck and being unable to receive assistance.

The signs of agoraphobia are fear of transportation in general, wide-open areas (parking lots, bridges), closed-in places (stores, movie theaters) (stores, movie theaters),  and throngs of people or lines. It is also a fear in which you van not go outside your home.

The disorders may be pain in fear, chest pain, diarrhea, sweating, dizziness, and swelling.

Thus, the correct option is C. to feel hot and dizzy.

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There would be very little or no DNA produced  if in a pcr reaction you used a dna polymerase isolated not from thermus aquaticus, but from an organism that grows at lower temperature .

What is the purpose of PCR?

To amplify (copy) a gene so it can be detected.

How do the strands separate during PCR?

What is a PCR test ?

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