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 49, Problem 3TYK
Summary Introduction
Introduction:
Sexual reproduction takes place when a sperm fertilizes an egg and an individual is born. The sperm is formed by a process called spermatogenesis and egg by oogenesis. These are produced in testis and ovaries, respectively, under optimum conditions. These when fertilized form zygote and get nourished to form offspring.
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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 mitochondria
Which of the following is a major difference between spermatogenesis and oogenesis?
a. Spermatogenesis involves meiosis, and oogenesis involves mitosis.
b. Spermatogenesis is continuous, but oogenesis is variable.
c. Spermatogenesis produces fewer gametes per precursor cell than oogenesis.
d. All of these are significant differences between oogenesis and spermatogenesis.
After fertilisation, the resulting cell which gives rise to a new individual is the:
(a) embryo
(b) ovum
(c) foetus
(d) zygote
Chapter 49 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 49.1 - Prob. 1SBCh. 49.2 - What are egg coats, and what is their function?...Ch. 49.2 - Prob. 2SBCh. 49.3 - Outline the roles of follicle-stimulating hormone...Ch. 49.4 - How does the oral contraceptive pill prevent...Ch. 49 - Prob. 1TYKCh. 49 - Which of the following processes does not increase...Ch. 49 - Prob. 3TYKCh. 49 - Prob. 4TYKCh. 49 - The slow block to polyspermy: a. is caused by a...
Ch. 49 - Prob. 6TYKCh. 49 - Prob. 7TYKCh. 49 - Prob. 8TYKCh. 49 - Prob. 9TYKCh. 49 - Prob. 10TYKCh. 49 - Prob. 11TYKCh. 49 - Prob. 12TYKCh. 49 - Prob. 13TYKCh. 49 - Prob. 14TYKCh. 49 - Prob. 15TYKCh. 49 - Prob. 16TYKCh. 49 - Prob. 17TYKCh. 49 - Prob. 18TYKCh. 49 - Prob. 1ITDCh. 49 - Prob. 2ITDCh. 49 - Prob. 3ITD
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- Which of the following is part of the male reproductive system only?______________ A. bartolin glands B. ovaries C. uterus D. seminal vesiclesarrow_forwardWhich of the following processes takes place simultaneously during the menstrual cycle? a) High LH levels and ovulation b) Reconstruction of the corpus luteum and increased release of progesterone from the ovaries c) Maximum LH release and menstruation (bleeding) d) Early follicular development and uterine lining e) Ovulation and menstruationarrow_forwardWhat happens to the stratum functionalis of the endometrium during menstruation? Group of answer choices a.it gets larger and more energy-rich b.it develops into the myometrium c.it allows implantation of the embryo d.it is sloughed offarrow_forward
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- Distinguish the structures of the female reproductive system that (a) produce the egg, (b) transport the egg, (c) house a developing embryo, and (d) serve as the birth canal.arrow_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_forwardWhich of the following statements does NOT describe the role of luteinizing hormone (LH) in the female reproductive system? a. Stimulates the production of progesterone b. Stimulates the development of the corpus luteum c. Suppresses the production of estrogen d. Causes the release of mature ovum from ovaryarrow_forward
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