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2 years ago

Why do scientists extract DNA from organisms

Biology

2 answers:

alisha [4.7K]2 years ago

7 0

They can identify disorders and diseases from DNA

Maurinko [17]2 years ago

4 0

Scientists extract DNA for many reasons.

They use the samples of DNA to test things on.

With a pure sample of DNA, <span>you can test a newborn for a genetic disease, analyze forensic evidence, or study a gene involved in cancer.</span>

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Secretors (genotypes ss and ss) secrete their a and b blood group antigens into their saliva and other body fluids, while nonsec

Solnce55 [7]

As you can see from the image presented below when parents with AB Ss and AA ss genotypes cross we get three distinct phenotype groups.
Marked in red are the individuals whose A type blood we can determine from the saliva because they have at least one S allele.
Marked in light green are the individuals whose AB type of blood we can determine from the saliva too.
And marked in orange are the individuals that are homozygous recessive for the s allele, and we could not determine their blood type from their saliva.

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2 years ago

In two to four sentences, describe how money is channeled from savers to borrowers and then to investors.

Burka [1]

Answer:

Money is channeled through financial institutions such as banks.

Explanation:

The borrower may chose to use the funds to invest in a business venture and thus be becomes an investor. Money is channeled through financial institutions such as banks. A saver saving with a bank account seeks to keep the money in the bank as it earns him interest.

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1 year ago

The mammary glands enlargement during pregnancy primarily as a consequence of what hormonal process?

Masteriza [31]

Answer:

c-hormonal hyperplasia

Explanation:

When there is increase in the number of cells and tissues that appear normal under the microscope,Hyperplasia is said to occur.If these occur in cells of an endocrine gland of a system,then it is refers to as hormonal hyperplasia.

Therefore during pregnancy,the proliferation of the glandular epithelium in a pregnant woman (and at puberty in a females are examples of hormonal hyperlasia.

Its possible causes are;

a surge in local production s of growth factors,

In the numbers of growth factors receptors on the cells receptive to the factors,

and due to activation of specific intrancellular signalling pathways.

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2 years ago

A food chain contains oak trees (producer), mice (herbivore), black rat snakes (carnivore), and bald eagles (carnivore). How man

VMariaS [17]

Answer:

It has 4 trophic levels.

Explanation:

The first level would be the producers, followed by the primary consumers, then the secondary consumers, then the tertiary comsumers.

/ Tertiary consumers \

/ Secondary Consumers \

/ Primary Consumers \

/ Producers \

/________________________________\

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3 years ago

Taylor is teaching his little brother about the similarities and differences between

Vinvika [58]

Answer:

i think weather???

Explanation:

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2 years ago