Explain how treadmilling contributes to actin-based motility in crawling cells. be specific in why both actin filament growth and shrinkage are necessary.

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?