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cupoosta [38]
3 years ago
15

Mutagens are useful in biotechnology research for producing organisms with altered phenotypes. producing new organisms which hav

e beneficial traits from two or more organisms. selecting genetic mutants resistant to radioactivity. removing undesirable traits from microbes. producing DNA fragments for cloning.
Biology
1 answer:
ICE Princess25 [194]3 years ago
4 0

Answer:

The correct answer is A.

Explanation:

A mutagen changes the level of mutations that occur in the DNA either by affecting it physically or chemically. This helps researchers create different organisms with altered phenotypes according to what the research needs so that the genes can be investigated further under a controlled environment.

So the answer is A.

I hope this helps.

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Albinism is an autosomal recessive trait in humans. Assume that there are 100 albinos (aa) in a population of 1 million. How man
andreyandreev [35.5K]

Answer:

980,100

Explanation:

let the recessive condition (aa) be represented as q² which is the genotypic frequency = 100/1,000,000 = 0.0001

allelic frequency of a = q = √q² = √0.0001 = 0.01. thus q = 0.01

From the formula p + q = 1 where p is the allelic frequency of A.

since q = 0.01

p = 1 - 0.01 = 0.99. The allelic frequency of A (p) = 0.99

p² = 0.99² = 0.9801. Genotypic frequency of AA= 0.9801

= 0.9801 x 1,000,000 = 980,100 individuals with AA (homozygous normal)

For 2pq genotypic frequency for hetrozygous (Aa).

Using the formula p² + 2pq + q² = 1.  Since p² = 0.9801 and q² = 0.0001

   2pq = 1 - (p² + q²)

= 1 - (0.9801 + 0.0001)

= 1 - (0.9802)

= 0.0198 = 0.0198 x 1,000,000 = 19,800 individuals with Aa

7 0
3 years ago
(6-6÷3)^2-4×3÷2 can anyone help me
saw5 [17]

Answer:

10

Explanation:

(6−

6

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2

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(4)(3)

2

=42−

(4)(3)

2

=16−

(4)(3)

2

=16−

12

2

=16−6

https://www.mathpapa.com/algebra-calculator.html

5 0
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Erosion is your answer

8 0
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Which role do gametes play in reproduction?
Lesechka [4]
<span>C. Gametes are the sex cells, and each (sperm and ovum) contain half of the parent's genetic material. These cells will fuse to produce a zygote, which will usually contain the full number of genes required by an organism to live. If there is a chromosomal abnormality, such as a gamete with an extra chromosome, the offspring can either die in development or sometimes be born with physiological and/or developmental difficulties. An example of this phenomenon is trisomy 21, also known as Down Syndrome, in which the 21st chromosome bears 3 copies instead of the regular 2.</span>
3 0
3 years ago
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Which duct(s) of the male reproductive system passes through the prostate gland? vas deferens duct of seminal vesicle ejaculator
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The correct answer for the above question is the ejaculatory ducts. The male urethra is divided into three regions, one of them is the prostatic urethra which is the proximal portion that passes through the prostrate gland. It receives the ejaculatory duct, which contains sperm and secretions from the seminal vesicles, and numerous ducts from the prostrate glands.
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