When does a recessive trait show up for a female? A. When there are two recessive alleles present

B. When there are two dominant alleles present

C. When there is one recessive allele present

D. When there is one dominant allele present

A. When there are two recessive alleles present.

Explanation:

The only way for a recessive trait to manifest is for there to be 2 alleles for that trait.

a

Explanation:

if the individual has two copies of the allege

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

amber has allowed scientists to study dna that has been preserved over millions of years.