Chapter 19

The process of mitosis results in a. two haploid cells. b. two diploid cells. c. four haploid cells. d. four diploid cells.

DNA is synthesized (replicated) during a. interphase. b. prophase. c. metaphase. d. anaphase.

Crossing over occurs during which stage of meiosis? a. prophase I b. metaphase I c. prophase II d. metaphase II

Which of the following expresses an important difference between spermatogenesis and oogenesis? a. A sperm is haploid, and a mature ovum is diploid. b. During spermatogenesis, four functional sperm are produced; during oogenesis, one mature ovum and up to three polar bodies are formed. c. Spermatogenesis involves mitosis and meiosis, but oogenesis involves only meiosis. d. Crossing over occurs during spermatogenesis but not during oogenesis.

What kind of chromatid is attached at the centromere? a. sister b. mother c. daughter d. programmed

After mitosis, the number of chromosomes in a daughter cell is _______ those in the parent cell. a. one-half b. the same as c. twice

After meiosis, the number of chromosomes in a daughter cell is_____________ those in the parent cell. a. one-half b. the same as c. twice

An abnormal number of chromosomes can result during meiosis because of a. crossing over. b. recombination. c. nondisjunction. d. synapsis.

_____________ is the pairing of chromosomes during meiosis.

The stage of mitosis during which sister chromatids separate is _____________.

The stage of meiosis during which sister chromatids separate is _______________.