For a gene with two alternative alleles, a (frequency p) and a (frequency q), the term in the algebraic form of the hardy-weinberg equilibrium for the heterozygote

genotype frequency .
a. p^2.
b. q^2.
c. 2pq.
d. (p+q)^2.
e. 2aa.

Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome