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adelina 88 [10]
3 years ago
12

Which mechanism has the least effect on natural selection over time?

Biology
1 answer:
Lelu [443]3 years ago
3 0

Answer:

chromosome number.

Explanation:

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In northern Canada, a population of rabbits was predominantly white in color. The allele for white color is recessive, while the
Alex777 [14]

Answer:

D.

Explanation:

Explained by natural selection. Those with favored traits in an environment are more likely to survive and pass down the allele. Thus in this situation a grey rabbit is more likely to survive and blend in.

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The initial sequence to begin protein synthesis is seen here. Imagine the sequence is reversed and a second protein is construct
igomit [66]

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c

Explanation:

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3 years ago
I WILL GIVE BRAINLIEST!!!
Nesterboy [21]

Answer:

25%

Explanation:

When looking at a pedigree remember that:

  • squares are males
  • circles are females
  • the solid colored figure represents an individual affected by a disease
  • the empty figure represents a healthy individual

Let us assign the symbol X⁺ to represent the dominant allele linked to the X-chromosome and expressing healthiness, and X⁻ to represent the recessive allele expressing the dissease.

According to this pedigree

  • I1 is a man affected by the disease, YX⁻
  • I2 is a healthy woman X⁺X⁻
  • we can see that among the progeny (generation II) there are two individuals affected (a boy and a girl) and one healthy girl. This means that the mother I2 is heterozygous for the trait.

So, having their genotypes we can know what are the probabilities of getting a son with DMD

Parentals)    YX⁻     x     X⁺X⁻  

Gametes)   Y     X⁻      X⁺     X⁻

Punnett square)

                        X⁺             X⁻

            X⁻      X⁺X⁻         X⁻X⁻    

            Y        X⁺Y           X⁻Y

F1)

  • The probabilities of getting a healthy daughter X⁺X⁻ are 25%
  • The probabilities of getting a healthy son X⁺Y are 25%
  • The probabilities of getting a daughter with DMD X⁻X⁻ are 25%
  • The probabilities of getting a son with DMD X⁻Y are 25%
7 0
2 years ago
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Dr. ting is working with a 16-year-old client who presents with the symptoms of a moderate case of depression. as part of his in
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I believe the answer is Axis III

In psychiatric problem, the doctor could make diagnosis in 5 different axis to make sure they assess the patient comprehensively. Axis III is dedicated for general medical condition. In this case, serious cystic acne and bad skin would be categorized as general medical condition because it was not psychological or personality disorder.

4 0
3 years ago
A field has a population of white flowers and a population of pink flowers. If gene flow happens, _____.
dybincka [34]
Wouldn't the population then become a mix of both turning into purple.
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