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Bezzdna [24]
2 years ago
14

Which is the best definition for directional selection

Biology
2 answers:
kotegsom [21]2 years ago
6 0
It is a mode of natural selection where an extreme phenotype is favored by the other phenotypes  causing the allele frequency to  shift over time in the direction of that phenotype
postnew [5]2 years ago
3 0

Answer:B- a process by which one of the extreme variations of a trait is favored.

Explanation:

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Consider the following prediction.
natka813 [3]

The correct answer to this question is:

“The prediction is useful because it explains what observations will be made if a hypothesis is true.”

6 0
3 years ago
Read 2 more answers
Remnants of erythrocyte nuclei, nuclear fragments, or aggregates of chromosomes are called:
Georgia [21]
Organelles? that'd be my geuss
7 0
3 years ago
Roan coat color in cattle develops through incomplete dominance of the gene for red color and its allele for white. what crossin
slava [35]
<span>Roan is a combination of white hairs with red hairs. When we see cattle like this, they look pink because it resulted from a mix of white and red.

Red allele: A
White allele: a
</span>
<span>A heterozygotic animal has this genotype: Aa
Like i said previously this is the mixture of colors so the animal would be pink.

A red coat color has this genotype: AA
A white coat color has this genotype: aa

To get all the herd to be</span><span> roan-colored cattle the combination of parents should be: AA x aa. -> 100% roan
Another possible way to obtain would be</span><span>roan-colored cattle: Aa x Aa or aa x Aa (in this case there would be less probabable to obtain road).</span>
8 0
3 years ago
A segment of DNA that leads to the expression of a hereditary trait or characteristic is known as a -
stira [4]

Answer:

gene

Explanation:

The basic unit of heredity that occupies a specific location on a chromosome is a gene.

3 0
2 years ago
Number 2, 3, 4 ??????
Sauron [17]
2. detritivores are decomposes because they consume other material to break it down.
3. need to see the image on p.591 to answer but a producer is a type of plant that supplies energy to a first level consumer, a detritivore would be a type of fungi that is pictured because fungi break down materials.
4. the first box is mutualism. second box is commensalism. third box is parasitism.
7 0
2 years ago
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