1. dna replication occurs
a. so a cell can grow
b. so a cell can divide
c. so that proteins can be made
d. so that mutations can be removed

2. when does dna replication happen?

a. during the g1 phase of the cell cycle
b. during the s phase of the cell cycle
c. during the g2 phase of the cell cycle
d. during the mitotic phase of the cell cycle

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?

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Match each term to its best definition? sedimentary depositional enviornment