For the partial diploid you've created, f' i+ p+ oc z− y+ / i− p+ o+ z+ y− , you already know that the promoter sequences for copies are functional, so you can focus on the repressor proteins and operator regions that control expression. indicate the source of repressor protein and the operator region(s) to which it binds. then indicate how this affects expression of lac genes from the f' plasmid and from the bacterial chromosome.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?