Which statement is true of a pedigree chart? a. it predicts whether or not a person will inherit a certain disorder or disease
b. it explains how an individual descended from a particular ancestor
c. it describes the likely life expectancies of family members
d. it illustrates how a single inherited disorder or disease is distributed in a family

Why has two different alleles for the same trait?

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.

What is gene expression control that occurs after the generation of rna