Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 3, Problem 2RA
After the DNA molecule has replicated itself, the duplicate strands are called
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Students have asked these similar questions
DNA that makes up Chromosomes is complexed with proteins and is called Chromatin. One of the most important proteins associated with DNA that helps to organize it in the nucleus is called:
A. Euchromatin.
B. Heterochromatin.
C. Histones.
D. Centromeres.
Which of the following is responsible for moving chromosomes to the metaphase plate?
A. Centromeres
B. Cohesins
C. Nuclear envelope
D. Spindle microtubules
24.
Chromosomes are visible under microscope during cell division because
a. Thickening of chromatins
b. Disappearance of the nucleoli
c. Disintegration of the nuclear membrane
d. Duplication of the DNA
Chapter 3 Solutions
Human Physiology
Ch. 3 - According to the fluid-mosaic model of the plasma...Ch. 3 - After the DNA molecule has replicated itself, the...Ch. 3 - Nerve and skeletal muscle cells in the adult,...Ch. 3 - Prob. 4RACh. 3 - The phase of mitosis in which the chromatids...Ch. 3 - Prob. 6RACh. 3 - Which of these statements about RNA is true?...Ch. 3 - Prob. 8RACh. 3 - Prob. 9RACh. 3 - Prob. 10RA
Ch. 3 - Prob. 11RACh. 3 - Which of these statements about tRNA is true?...Ch. 3 - The step in protein synthesis during which tRNA,...Ch. 3 - Prob. 14RACh. 3 - Prob. 15RACh. 3 - Prob. 16RACh. 3 - Give some specific examples that illustrate the...Ch. 3 - Describe the structure of nucleosomes, and explain...Ch. 3 - What is the genetic code, and how does it affect...Ch. 3 - Why may tRNA be considered the "interpreter" of...Ch. 3 - Prob. 21RACh. 3 - Define the terms genome and proteome, and explain...Ch. 3 - Prob. 23RACh. 3 - Explain the functions of centrioles in nondividing...Ch. 3 - Prob. 25RACh. 3 - Prob. 26RACh. 3 - Define apoptosis and explain the physiological...Ch. 3 - Describe what is meant by epigenetic inheritance,...Ch. 3 - Discuss the role of chromatin proteins in...Ch. 3 - Explain how p53 functions as a tumor suppressor...Ch. 3 - Prob. 31RACh. 3 - Antibiotics can have different mechanisms of...Ch. 3 - Explain how it is possible for the human proteome...Ch. 3 - Explain RNA interference RNAi by siRNA and miRNA...Ch. 3 - Describe the function and significance of...Ch. 3 - Prob. 36RACh. 3 - Review figure 3.19 and answer the following...Ch. 3 - Prob. 38RACh. 3 - Describe the structure of the plasma membrane.Ch. 3 - Describe the structure and function of cilia,...Ch. 3 - Prob. 2aCPCh. 3 - Prob. 2bCPCh. 3 - Prob. 3aCPCh. 3 - Prob. 3bCPCh. 3 - Describe the structure and functions of...Ch. 3 - Prob. 3dCPCh. 3 - Describe the structure and function of ribosomes.Ch. 3 - Distinguish the two types of endoplasmic reticulum...Ch. 3 - Describe the appearance and composition of...Ch. 3 - Explain how RNA is produced within the nucleus...Ch. 3 - Explain how precursor mRNA is modified to produce...Ch. 3 - Explain how mRNA. rRNA, and tRNA function during...Ch. 3 - Describe the rough endoplasmic reticulum, and...Ch. 3 - Describe post-translational changes and other...Ch. 3 - Draw a simple diagram of the semiconservative...Ch. 3 - Describe the cell cycle using the proper symbols...Ch. 3 - Prob. 10bCPCh. 3 - List the phases of mitosis and briefly describe...Ch. 3 - Distinguish between mitosis and meiosis, describe...
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- If there are 20 chromosomes in a cell at metaphase, how many chromosomes are there is each daughter cell following cytokinesis of mitosis? a.)10 b.)20 c.)40 d.)80arrow_forwardWhich of the following is the main reason why DNA must exist in chromosome form? a.)To favor the formation of sister chromatids b.)To allow the protein histones to carry out its task c.)To avoid the genetic material to be tangled away during cell division d.)To promote the formation of spindle fibersarrow_forwardWhich of the following is true of normal adult cells but NOT cancer cells? A. Cell death after a finite number of cell divisions B. Contact with other cells increases likelihood of division C. Large amount of telomerase present D. Do not care about cell density while culturearrow_forward
- Examine the picture of an onion root tip with cells in various stages of the cell cycle. A student claims that interphase is the longest stage of the cell cycle. Another student claims that mitosis is the longest stage. Using evidence from the photo, determine which student is correct and why A)mitosis is the longest stage because anaphase requires more time to separate chromatids B) interphase is the longest stage because chromosomes are visible in the majority of the cells C) mitosis is the longest stage because the majority of the cells in the photo are replicating their dna D) interphase is the longest stage because the majority of the cells in the photo have uncondensed chromatin and are not dividingarrow_forwardIn eukaryotic chromosomes, DNA wraps around _________. a. histone proteins c. centromeres b. sister chromatids d. nucleosomesarrow_forwardWith regard to the process of mitosis, which of the following pairs is NOT matched correctly? a. Interphase - the cell grows, chromosomes replicate, and proteins are produced to prepare the cell to divide Ob. Prophase - chromosomes condense, and the nuclear membrane dissociates/breaks down c. Metaphase - chromosomes move toward opposite poles (or sides) of the cell d. Anaphase - sister chromatids separate e. Telophase - two distinct nuclei are formed; this is the stage immediately before cytokinesis O O Oarrow_forward
- A cell has 30 chromosomes before mitosis. After the completion of mitosis, the two daughter cells would have how many chromosomes in EACH? a). 30 b). 20 c). 15 d). 60arrow_forwardIdentify the phase in mitosis in which the replicated sister chromatids line up in the centre of the cell. Select one: a. Anaphase b. Telophase c. Metaphase d. Prophasearrow_forwardA bivalent consists of: A Two chromatids and one centromere B Four chromatids and two centromeres C Two chromatids and two centromeres D Four chromatids and four centromeresarrow_forward
- During this stage of mitosis, the chromatin coils to form chromosomes, the nuclear envelope disappears, the nucleolus dissolves, spindle fibers are formed, and the centrioles migrate to the poles. a. prophase b. metaphase c. anaphase d. telophasearrow_forwardAll of the following events happen during prophase, except... A. Chromosomes are lined up in the middle of the cell B. Spindle fibers form and attach to chromosomes C.Nucleus breaks down D. Chromatin condenses into chromosomesarrow_forwardCytokinesis involves ... A.)division of the cytoplasm B.)a cleavage furrow (animals) or cell plate formation (plants) C.)the completion of the cell cycle D.)all of the abovearrow_forward
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