BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 19, Problem 6U
Summary Introduction
Introduction:
Cellular differentiation is very important in multicellular organisms to form different body parts. Moreover, an important part of differentiation is the determination of location of the cells in the body. This is pattern formation.
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The expression of homeotic genes leads to
a. the establishment of body axes.
b. the formation of segments in the embryo.
c. the determination of structures within segments.
d. cell differentiation.
Which of the following statements is/are true?
A.
Spermatogenesis is an example of asymmetric cell division.
B.
The formation of a mature egg occurs through symmetric cell division.
C.
Spermatogenesis and oogenesis are both examples of asymmetric cell division.
D.
Spermatogenesis involves only symmetric cell division whereas oogenesis involves asymmetric cell division.
During development, cells become
a. differentiated before they become determined.
b. determined before they become differentiated.
c. determined by the loss of genetic material.
d. differentiated by the loss of genetic material.
Chapter 19 Solutions
BIOLOGY
Ch. 19.1 - Prob. 1LOCh. 19.2 - Prob. 1LOCh. 19.2 - Prob. 2LOCh. 19.2 - Distinguish differences in cell division between...Ch. 19.3 - Prob. 1LOCh. 19.3 - Prob. 2LOCh. 19.3 - Prob. 3LOCh. 19.4 - Prob. 1LOCh. 19.4 - Prob. 2LOCh. 19.5 - Prob. 1LO
Ch. 19.5 - Describe D/V axis formation in Drosophila.Ch. 19.6 - Prob. 1LOCh. 19.6 - Prob. 2LOCh. 19.6 - Prob. 3LOCh. 19.7 - Prob. 1LOCh. 19.7 - Prob. 2LOCh. 19.7 - Prob. 3LOCh. 19 - What type of cells would develop if you injected...Ch. 19 - The sheep used for the donor nucleus had a...Ch. 19 - During development, cells become a. differentiated...Ch. 19 - Prob. 2UCh. 19 - Prob. 3UCh. 19 - Prob. 4UCh. 19 - Plant meristems a. are only present during...Ch. 19 - Prob. 6UCh. 19 - The process of nuclear reprogramming a. is a...Ch. 19 - What is the common theme in cell determination by...Ch. 19 - The process of reproductive cloning a. shows that...Ch. 19 - Prob. 3ACh. 19 - Prob. 4ACh. 19 - The genes that encode the morphogen gradients in...Ch. 19 - What would be the likely result of a mutation of...Ch. 19 - MADS-box, and Hox genes are a. found only in...Ch. 19 - The fate map for C. elegans (refer to figure 19.3)...Ch. 19 - Prob. 2SCh. 19 - You have generated a set of mutant embryonic mouse...Ch. 19 - Assume you have the factors in hand necessary to...
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- How do you expect Kartagener syndrome leads to infertility? A. The lack of a plasma membrane means that pathogens and foreign substances can permeate the sperm and damage the DNA B. The lack of microtubules mean the sperm do not have tails and cannot swim to fertilize the egg C. The lack of dynein means that the sperm cannot bend their tails to swim and fertilize the eggarrow_forwardA fertilized egg would be considered a ________ cell, while one of the ICM would be described as _________. a. totipotent; pluripotent b. totipotent; also totipotent c. pluripotent; multipotent d. multipotent; oligopotentarrow_forwardCell differentiation occurs through _______________, whereas morphogenesis involves _______________. (a) pattern formation; cell determination (b) cell division; cell expansion (c) cell expansion; pattern formation (d) cell determination; cell division (e) cell determination; pattern formationarrow_forward
- The process forming the neural tube and plate via the intercalation of cells along the medial-lateral axis and extension along the anterior-posterior axis occurs is called? a. neurulation b. embryogenesis c. convergent extension d. morphogenesisarrow_forwardWhich of these processes is MOST directly involved in the resorption of a tadpole’s tail during development? A. apoptosis B. mitosis C. phagocytosis D. protein synthesisarrow_forwardList and briefly describe the four stages that are thoughtto have led to the formation of the first cells.arrow_forward
- How does the production of sperm differ from the production of eggs? a. Sperm production involves meiosis, whereas egg production involves only mitosis. b. Meiosis during sperm production produces four sperm cells, whereas meiosis during egg production produces only one functional egg cell. c. Sperm are haploid, whereas eggs are diploid. d. Sperm production begins during fetal development, whereas the meiotic process that begins egg production doesn’t begin until pubertyarrow_forwardWhich of the following examples of cell division would involve meiosis? Group of answer choices A. a spermatocyte divides into sperm cells B. a sperm cell fertilizes an egg cell C. a white blood cell divides into new white blood cells D. a stem cell divides into nerve cells E. a fertilized egg divides into daughter cellsarrow_forwardOne day while walking across campus, you see a female butterfly laying fertilized eggs, as shown in the image below: 1. When the female butterfly’s eggs are fertilized, the fusion (2N) nucleus will divide repeatedly giving rise to cleavage nuclei, which: a. can become trophocytes that migrate into the germarium and connect to the developing embryo by nutritive cords. b. can migrate to the periplasm and become cleavage cells that ultimately give rise to the germ band and the serosa. c. can migrate to the peripheral cytoplasm and become germ cells, which eventually move into the forming gonads and become oogonia or spermatogonia. d. can remain in the yolk and become vitellophages that digest the yolk and make nutrients available to the forming embryo. e. only b and c f. only a and d g. all except a h. all except d 2. In the mature, unfertilized egg of the adult female butterfly: a. bicoid mRNAs will congregate at the end of the…arrow_forward
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