ch08 - Chapter 8: Sexual Reproduction and Heredity...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 8: Sexual Reproduction and Heredity Multiple-Choice Questions 1. Sexual Reproduction; pp. 141–142; moderate; ans: a Which of the following statements about sexual reproduction is FALSE? a. It is the principal mode of reproduction in prokaryotes. b. Some eukaryotes do not reproduce sexually. c. It involves the reduction of chromosome number. d. It involves syngamy. e. It involves a regular alternation between meiosis and fertilization. 2. Sexual Reproduction; p. 142; moderate; ans: d Which of the following statements about homologous chromosomes is FALSE? a. Both homologs are present in a zygote. b. One homolog comes from one parent and the other homolog from the other parent. c. Homologs resemble each other in the kinds of hereditary information they contain. d. Homologs resemble each other in size but not in shape. e. Homologs constitute a member of a pair. 3. The Eukaryotic Chromosome; p. 143; difficult; ans: e Chromatin consists of: a. DNA only. b. histones only. c. DNA and histones only. d. histones and other proteins only. e. DNA, histones, and other proteins. 4. The Eukaryotic Chromosome; p. 143; easy; ans: a A nucleosome consists of: a. a core of histones wrapped with DNA. b. eight histone molecules arranged in a spherical mass. c. a strand of DNA that is not associated with histones. d. a looped domain in the chromosome. e. nonhistone chromosomal proteins. 5. The Phases of Meiosis; p. 145; moderate; ans: a The pairing of homologous chromosomes is called: a. synapsis. b. chiasma. c. crossing-over. d. recombination. e. bivalence.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 8 Sexual Reproduction and Heredity 6. The Phases of Meiosis; p. 145; moderate; ans: a Which of the following statements about the synaptonemal complex is FALSE? a. It forms just before prophase. b. It is associated with the formation of bivalents. c. It connects the axial cores of homologs. d. It disappears during prophase I. e. It is associated with crossing-over. 7. The Phases of Meiosis; p. 146; easy; ans: b Homologous pairs of chromosomes line up on the equatorial plane during: a. prophase II. b. metaphase I. c. telophase I. d. metaphase II. e. prophase I. 8. The Phases of Meiosis; p. 146; easy; ans: c Homologous pairs of chromosomes separate during: a. prophase II. b. metaphase I. c. anaphase I. d. metaphase II. e. anaphase III. 9. The Phases of Meiosis; p. 147; moderate; ans: d Nuclear envelopes form around double-stranded chromosomes during: a. telophase II. b. metaphase I. c. prophase I. d. telophase I. e. metaphase II. 10. The Phases of Meiosis; p. 147; moderate; ans: d Unpaired double-stranded chromosomes line up on the equatorial plane during: a. prophase II. b. metaphase I. c. anaphase I. d. metaphase II. e.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 14

ch08 - Chapter 8: Sexual Reproduction and Heredity...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online