The Correct choice is C
The difference in concentration of materials across a space is called the <u>Concentration</u><u> </u><u>gradient</u> .
Answer:
3 long tails : 1 short tail
Explanation:
This question involves a single gene coding for tail length in mice. The allele for long tail (T) is dominant over the allele for short tail (t). This means that an heterozygous mice will possess the long tail length.
According to this question, in a cross between two hybrid or heterozygote mice i.e. Tt × Tt, the following gametes will be produced by each parent:
Tt - T and t
Using these gametes in a punnet square (see attached image), the following will be produced: TT, Tt, Tt and tt.
Offsprings with genotype TT, Tt and Tt will have a LONG TAIL while genotype tt will have a SHORT TAIL. Hence, the phenotypic ratio will be 3 long tails : 1 short tail.
Answer:
It tells us that homologous structure is evidence of common ancestry
Explanation:
<em>Homology is the similarity of organs of different organisms even though they perform different functions in the organisms. Organs that are built on a similar plan but perform different functions are known as homologous organs. </em>
Organisms having organs built on a similar plan is an indication that they were once from the same source and adapting to different environments must have been the reason the organs evolved for different functions.
For example, all mammals have limbs that are built on a similar five-digit plan even though limbs are adapted for different functions in different mammals.
5-18 years old this is what my mom told me shes an rn.