The study of the distribution of animals and plants around the world is

The point of constriction on chromosomes that contains certain repeated DNA sequences that bind specific proteins is called:

A. The centrosome B. The kinetochore C. The cohesin complex D. The centromere E. The centriole

If a chromosome contains a mutation such that it cannot bind to the kinetochore complex, what would be the consequence?

A. That chromosome would not be able to condense. B. That chromosome would not be able to bind to the mitotic spindle. C. That chromosome would not be able to interact with histone proteins. D. That chromosome would not be able to be replicated.

The sac fungi are characterized by sexual reproductive structures called:a

asci. b. basidia. c. gemmae. d. conidiophores. e. conidia.

Which hormone, secreted by the chorion during implantation, functions to maintain the corpus luteum?

A) progesterone B) human chorionic gonadotropin C) relaxin D) placental prolactin E) estrogen