20. Which of the following occurs during mitosis but not during meiosis I? (A) The chromosomes are pulled to opposite poles of the spindle apparatus. (B) The chromatids of each chromosome are separated. (C) The nuclear envelope breaks down. (D) Both synapsis and crossingover take place. (E) The diploid number of chromosomes is reduced to the haploid number.
20. Which of the following occurs during mitosis but not during meiosis I? (A) The chromosomes are pulled to opposite poles of the spindle apparatus. (B) The chromatids of each chromosome are separated. (C) The nuclear envelope breaks down. (D) Both synapsis and crossingover take place. (E) The diploid number of chromosomes is reduced to the haploid number.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Transcribed Image Text:20. Which of the following occurs during mitosis but not during meiosis I?
(A) The chromosomes are pulled to opposite poles of the spindle apparatus.
(B) The chromatids of each chromosome are separated.
(C) The nuclear envelope breaks down.
(D) Both synapsis and crossingover take place.
(E) The diploid number of chromosomes is reduced to the haploid number.
21. Oxygen consumption can be used as a measure of metabolic rate because oxygen is
(A) necessary for ATP synthesis by oxidative phosphorylation
(B) necessary to replenish glycogen levels
(C) necessary for fermentation to take place
(D) required by all living organisms
(E) required to break down the ethanol that is produced in muscles
22. Membranes are components of all of the following EXCEPT a
(A) microtubule
(В) nu
(C) Golgi apparatus
(D) mitochondrion
(E) lysosome
23. In a mesophyll cell of a leaf, the synthesis of ATP occurs in which of the following?
I.
Ribosomes
II.
Mitochondria
III.
Chloroplasts
(A) I only
(В) II only
(C) III only
(D) II and III only
(E) І, II, and Ш
24. Prokaryotic and eukaryotic cells generally have which of the following features in common?
(A) A membranebound nucleus
(B) A cell wall made of cellulose
(C) Ribosomes
(D) Flagella or cilia that contain microtubules
(E) Linear chromosomes made of DNA and protein
25. Plant stems bend toward a light source as a result of increased
(A) chlorophyll synthesis on the side of the stem near the light source
(B) cell division on the side of the stem near the light source
(C) cell division on the side of the stem away from the light source
(D) cell elongation on the side of the stem near the light source
(E) cell elongation on the side of the stem away from the light source
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