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3 years ago

Why is decreased genetic variation in a species considered a negative impact of genetic technologies?

Biology

2 answers:

lara31 [8.8K]3 years ago

6 0

Answer:

the answer is c

Explanation:

test

Veronika [31]3 years ago

3 0

Answer:

<em>It makes the species more susceptible to diseases.</em>

Explanation:

High genetic variations are crucial for any species to survive in a changing environment. Scientifically speaking, these variations help the species to evolve against changing environmental conditions. Thus, if the genetic variations (or genetic pool) is reduced due to any reason (either man-made or natural), it will result in diseases and possibly their elimination from nature.

For example, first-cousin marriages are biologically not recommended because the genetic pool will reduce with the time (i.e. members of the same family have a similar genetic pool). Thus, the new recombinations during meiosis are not sufficient to make future generations more genetically versatile. Therefore, their offsprings will have more genetic disorders and they will be less fit compared to the other individuals whose parents belong to different families.

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2 years ago

A trihybrid cross is a cross between two individuals who are heterozygous for three genes. For example: AaBbCc x AaBbCc. Assumin

Mariulka [41]

Answer:

27:9:9:9:3:3:3:1

Explanation:

The gametes of the parental genotypes would be

ABC, ABc, AbC, aBC, Abc, aBc, abC, abc

The cross between AaBbCc and AaBbCc will result into following offspring (image is also attached)

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ABC AABBCC AABBCc AABbCC AaBBCC AABbCc AaBBCc AaBbCC AaBbCc

ABc AABBCc AABBcc AABbCc AaBBCc AaBbcc AaBBcc AaBbCc AaBbcc

AbC AABbCC AABbCc AAbbCC AaBbCC AAbbCc AaBbCc AabbCC AabbCc

aBC AaBBCC AaBBCc AaBbCC aaBBCC AaBbCc aaBBCc aaBbCC aaBbCc

Abc AABbCc AABbcc AAbbCc AaBbCc AAbbcc AaBbcc AabbCc Aabbcc

aBc AaBBCc AaBBcc AaBbCc aaBBCc AaBbcc aaBBcc aaBbCc aaBbcc

abC AaBbCC AaBbCc AabbCC aaBbCC AabbCc aaBbCc aabbCC aabbCc

abc AaBbCc AaBbcc AabbCc aaBbCc Aabbcc aaBbcc aabbCc aabbcc

The genotype ratio is 27:9:9:9:3:3:3:1

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3 years ago

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2 years ago

Read 2 more answers

How does decaying plant and animal material create a carbon sink?

mafiozo [28]

Answer:

2) It gets buried under layers of soil and rock for long periods of time. I know I was 6 days late, I apologize.

Explanation:

I took the K12 Test and got it right. Hope this helps!

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2 years ago