Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 50, Problem 3TYK
Summary Introduction
Introduction:
The fertilization of egg cells by sperm cells results in the formation of a zygote. This zygote develops into a complete organism by undergoing various developmental processes. These processes are mainly controlled by genes. Under some circumstances, these processes can be affected by environmental conditions.
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Check out a sample textbook solutionStudents have asked these similar questions
The process by which haploid cells are produced from diploid cells is called
A( sexual reproduction.
B) meiosis
C) gameoto reduction
D) mitosis
Which cell contributes the necessary nutrition to the growing zygote?
a
a polar body
b
the egg cell
c
a spermatocyte
d
the sperm cell
In humans, gametogenesis results in the formation ofa. diploid egg and sperm cells.b. gametophytes.c. sporophytes.d. haploid egg and sperm cells.e. a zygote.
Chapter 50 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 50.1 - Prob. 1SBCh. 50.1 - Prob. 2SBCh. 50.2 - Prob. 1SBCh. 50.2 - Prob. 2SBCh. 50.2 - Prob. 3SBCh. 50.3 - Prob. 1SBCh. 50.3 - Prob. 2SBCh. 50.4 - Prob. 1SBCh. 50.4 - Prob. 2SBCh. 50.5 - Prob. 1SB
Ch. 50.5 - Prob. 2SBCh. 50.5 - Prob. 3SBCh. 50 - Prob. 1TYKCh. 50 - Prob. 2TYKCh. 50 - Prob. 3TYKCh. 50 - Prob. 4TYKCh. 50 - Prob. 5TYKCh. 50 - Prob. 6TYKCh. 50 - Prob. 7TYKCh. 50 - In the development of the female sex organs: a....Ch. 50 - In the embryonic development of the eye: a. the...Ch. 50 - Prob. 10TYKCh. 50 - Discuss Concepts Experimentally, it is possible to...Ch. 50 - Discuss Concepts Developmental biologist Lewis...Ch. 50 - Discuss Concepts Arguably, in sexually reproducing...Ch. 50 - Prob. 14TYKCh. 50 - Prob. 15TYKCh. 50 - Prob. 16TYKCh. 50 - Prob. 1ITDCh. 50 - Prob. 2ITDCh. 50 - Prob. 3ITDCh. 50 - Prob. 4ITD
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- Which type of life cycle has both a haploid and diploid multicellular stage? a. an asexual life cycle b. diploid-dominant c. haploid-dominant d. alternation of generationsarrow_forwardThe event that leads from the haploid stage to the diploid stage in alternation of generations is _______. a. meiosis b. mitosis c. fertilization d. germinationarrow_forwardWhich 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.arrow_forward
- Why is a second polar body expelled after fertilisation? a) To remove excess cytoplasm b) Because the oocyte must reactivate the incomplete meiosis before fusing with the sperm c) Before fusion with the sperm it must complete mitosis d) The fertilised oocyte is not a haploid cell until it expels the sperms mitochondriaarrow_forwardWhy is a second polar body expelled after fertilisation (select one) a. The oocyte must recativate the incomplete meiosis before fusing with the sperm b. To remove excess cytoplasm c. Before fusion with the sperm it must complete mitosis d. The fertilised oocyte is not a haploid cell until it expels the sperms mitochondriaarrow_forwardThe number of chromosomes present in eurkaryotic cells a. is consistent during the life cycle b. is haploid among sexually reproducing forms and diploid if the reproduce sexually c. is double by fertilization and cut in half by meiosis d. is dependent on the age of the tissuearrow_forward
- Explain the consequent of each of the following on neurulation: a. Inhibition of microtubules polymerization. b. Inhibition of the motor activity of myosin.arrow_forwardWhich of the following stages of the fertilization process stimulates completion of meiosis II in the oocyte’s nucleus? A. The sperm nucleus and egg nucleus combine to form the genetic material of the zygote B. Sperm release enzymes to digest the protein layer of the secondary oocyte C. The entry of a sperm into the secondary oocyte D. The swimming of sperm from the vagina, through the uterus, and up to an oviductarrow_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_forward
- Sea urchins exhibit a holoblastic cleavage pattern. What factor contribute to this cleavage pattern? a. The amount/distribution of yolk b. Conditional specification of the vegetal layer by large micromeres c. The angle of the mitotic spindle and its time of formation d. Maternal factorsarrow_forwardIf an egg cell were treated with EDTA, a chemical that bindscalcium and magnesium ions,(A) the acrosomal reaction would be blocked.(B) the fusion of sperm and egg nuclei would be blocked.(C) the fast block to polyspermy would not occur.(D) the fertilization envelope would not form.arrow_forwardAt which point during meiosis do haploid cells first appear? A. metaphase I B. anaphase I C. metaphase II D. anaphase IIarrow_forward
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