Albinism is a recessive trait in humans that is controlled by a single gene. how many recessive alleles must a person have to have albinism?

a. 2

b. 3

c. 1

d. 0

a. 2

If there is a dominant allele, it will overpower the recessive allele for albinism; therefore, a person must have 2 recessive alleles to have this recessive trait

b) the inside picture would look at a very high temperature in a very low ph

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.