Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 47, Problem 1TYU
Summary Introduction
Introduction: Fertilization is the process of formation of diploid zygote from the haploid sperm and egg. There are molecules at the surface of the egg which regulates the every step of fertilization. The sperm has to penetrate the protecting layer of egg fuse with the plasma membrane.
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12.Place the following events of the acrosomal reaction in the correct chronological order.
(1) The acrosome releases hydrolytic enzymes.
(2) Sperm-binding proteins on the membrane bind the sperm.
(3) Sperm nucleus enters the egg.
(4) Sperm and egg plasma membranes fuse.
(5) Sperm contacts the egg's jelly coat
(This is a multiple choice question choose the answer from the choices below)
A.1,2,4,3,5
B.3,5,2,1,4
C.5,2,4,3,1
D.5,1,2,4,3
Chapter 47 Solutions
Campbell Biology
Ch. 47.1 - How does the fertilization envelope form in sea...Ch. 47.1 - Prob. 2CCCh. 47.1 - MAKE CONNECTIONS Review Figure 12.16 on cell...Ch. 47.2 - In the frog embryo, convergent extension elongates...Ch. 47.2 - WHAT IF? Predict what would happen if Ca2+ was...Ch. 47.2 - MAKE CONNECTIONS Unlike some other types of birth...Ch. 47.3 - Prob. 1CCCh. 47.3 - Prob. 2CCCh. 47.3 - Prob. 3CCCh. 47.3 - Prob. 4CC
Ch. 47 - What cell-surface event would likely fail if a...Ch. 47 - What are some functions of apoptosis in...Ch. 47 - Suppose you found two classes of mouse mutations,...Ch. 47 - Prob. 1TYUCh. 47 - Which of the following is common to the...Ch. 47 - The archenteron develops into a. the mesoderm. b....Ch. 47 - What structural adaptation in chickens allows them...Ch. 47 - Prob. 5TYUCh. 47 - In humans, identical twins are possible because a....Ch. 47 - Cells transplanted from the neural tube of a frog...Ch. 47 - DRAW IT Each blue circle in the figure below...Ch. 47 - EVOLUTION CONNECTION Evolution in insects and...Ch. 47 - Prob. 10TYUCh. 47 - Prob. 11TYUCh. 47 - Prob. 12TYUCh. 47 - SYNTHESIZE YOUR KNOWLEDGE Occasionally, two-headed...
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- Somites are evidence of (a) a structure from ectoderm, (b) a structure from endoderm, (c) a structure from lateral plate mesoderm, (d) segmentation in the human body.arrow_forward12.Place the following events of the acrosomal reaction in the correct chronological order.(This is a multiple choice question choose the answer from the choices below) choose the best answer. Thank you! (1) The acrosome releases hydrolytic enzymes. (2) Sperm-binding proteins on the membrane bind the sperm. (3) Sperm nucleus enters the egg. (4) Sperm and egg plasma membranes fuse. (5) Sperm contacts the egg's jelly coat A.1,2,4,3,5 B.3,5,2,1,4 C.5,1,2,4,3arrow_forwardPart IlI: Discussion 1. How can you distinguish an unfertilized egg from a fertilized egg? 2. As development proceeds from zygote to morula, what happens to the: a. number of cells? b. size of cells? C. size of the cell mass? 3. Construct a table listing the three germ layers of the gastrula and the major body portions formed from each Jayer. 108 Lab 33arrow_forward
- Define(a) Juvenile phase,(b) Reproductive phase,(c) Senescent phase.arrow_forwardThe main function of the acrosome reaction is to (a) activate the egg (b) improve sperm motility (c) prevent interspecific fertilization (d) facilitate penetration of the egg coverings by the sperm (e) cause fusion of the sperm and egg pronucleiarrow_forwardWhich of the following statements about reproduction in humans is correct? (a) Fertilisation takes place externally. (b) Fertilisation takes place in the testes. (c) During fertilisation egg moves towards the sperm. (d) Fertilisation takes place in the human female.arrow_forward
- In male mammals, excretory and reproductive systems share(A) the vas deferens.(B) the urethra.(C) the seminal vesicle.(D) the prostate.arrow_forward1.State the functions of each egg part 2. What are the roles of the egg in animal development? 3. What about in plants, what is the counterpart of egg in plants? Why? 4. Compare between again and reptilian eggs.arrow_forward2. The muscular system develops from which embryonic germ layer? a ) Ectoderm B ) Mesoderm D ) Endodermarrow_forward
- Aquatic animals in which fertilisation occurs in water are said to be: (a) viviparous without fertilisation. (b) oviparous with external fertilisation. (c) viviparous with internal fertilisation. (d) oviparous with internal fertilisation.arrow_forwardWhich of the following characterizesparthenogenesis?(A) An individual may change its sex during itslifetime.(B) Specialized groups of cells grow into newindividuals.(C) An organism is first a male and then a female.(D) An egg develops without being fertilized.arrow_forwardThe fast block to polyspermy in sea urchins (a) is a depolarization of the egg plasma membrane (b) requires exocytosis of the cortical granules (c) includes the elevation of the fertilization envelope (d) involves the hardening of the jelly coat (e) is a complete blockarrow_forward
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