Natural selection is one of the key mechanisms that lead evolution. Some organisms have genes that improve their ability to survive and reproduce. If these genes also help their offspring
to survive and reproduce, then which of the following will most likely increase?
A. The frequency of the genes, one individual
B. The number of genes in one chromosome
C. The number of genes in the species
D. The frequency of genes in the population

The first amino acid of a new polypeptide chain is

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.