Which of the following genotypes is homozygous dominant?

a.) tt
b.) ff
c.) xy
d.) ss

According to the big bang theory, after the "bang," the universe remained dark until about  300,000 yearsone billion yearsthree minutesthree billion years  later, when neutral atoms began to form.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

The color of the fur is the genotypephenotype.the genetic combination of alleles that determine the fur color is called the genotypephenotype.