AP BIOLOGY

Detailed explanation-1: -The mechanisms of evolution-like natural selection and genetic drift-work with the random variation generated by mutation. Factors in the environment are thought to influence the rate of mutation but are not generally thought to influence the direction of mutation.

Detailed explanation-2: -“We always thought of mutation as basically random across the genome, ” said Grey Monroe, an assistant professor in the UC Davis Department of Plant Sciences who is lead author on the paper. “It turns out that mutation is very non-random and it’s non-random in a way that benefits the plant.

Detailed explanation-3: -“We always thought of mutation as basically random across the genome, ” said Grey Monroe, PhD, an assistant professor in the University of California, Davis, department of plant sciences. “It turns out that mutation is very nonrandom and it’s nonrandom in a way that benefits the plant.

Detailed explanation-4: -Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection. Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.

Detailed explanation-5: -Mutations usually occur randomly in the genome. Most of the mutations are a loss-of-function type due to the disturbance or disruption of the functional DNA sequences (Figs.