Answer:
Pigmented snails: A_B_; albino snails: A_bb, aaB_, aabb
This is an example of recessive epistasis. In recessive epistasis, two recessive alleles mask expression of an allele at a different locus. The 9:7 ratio observed in this question is a special case of epistasis called duplicative recessive epistasis, which means the presence of either aa or bb was sufficient to mask expression of the other gene. In this case, if snails had two copies of either allele a or allele b, pigment production was suppressed, resulting in albino individuals.
Because laissez-faire means freedom and the government gave business to sell the goods at the prices that they would like.
Answer:
D. XX
Explanation:
Females have to sets of an x chromosome and males have only W and one Y
Plants use a process called photosynthesis ( they combine carbon dioxide and water) and use solar energy to convert it to carbohydrates and oxygen for plant growth and production of leaves and seeds to make vegetables and fruit.
