Biology Ch. 11 Review Questions

At metaphase I, homologous chromosomes are connected only at what structures? a. chiasmata b. recombination nodules c. microtubules d. kinetochores

a. chiasmata

A diploid, multicellular life-cycle stage that gives rise to haploid cells by meiosis is called a ________. a. sporophyte b. gametophyte c. spore d. gamete

a. sporophyte

If a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism? a. 8 b. 16 c. 32 d. 64

b. 16

Fungi typically display which type of life cycle? a. diploid-dominant b. haploid-dominant c. alternation of generations d. asexual

b. haploid-dominant

What structure is most important in forming the tetrads? a. centromere b. synaptonemal complex c. chiasma d. kinetochore

b. synaptonemal complex

Which of the following is nottrue in regard to crossover? a. Spindle microtubules guide the transfer of DNA across the synaptonemal complex b. Non-sister chromatids exchange genetic material c. Chiasmata are formed d. Recombination nodules mark the crossover point.

c. Chiasmata are formed

What phase of mitotic interphase is missing from meiotic interkinesis? a. G0 phase b. G1 phase c. S phase d. G2 phase

c. S phase

What is a likely evolutionary advantage of sexual reproduction over asexual reproduction? a. Sexual reproduction involves fewer steps. b. There is a lower chance of using up the resources in a given environment. c. Sexual reproduction results in variation in the offspring. d. Sexual reproduction is more cost effective.

c. Sexual reproduction results in variation in the offspring.

Meiosis produces ________ daughter cells. a. two haploid b. two diploid c. four haploid d. four diploid

c. four haploid

The part of meiosis that is similar to mitosis is ________. a. meiosis I b. anaphase I c. meiosis II d. interkinesis

c. meiosis II

Which type of life cycle has both a haploid and diploid multicellular stage? a. asexual b. diploid-dominant c. haploid-dominant d. alternation of generations

d. alternation of generations

At which stage of meiosis are sister chromatids separated from each other? a. prophase I b. prophase II c. anaphase I d. anaphase II

d. anaphase II