Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Chapter 28, Problem 12RFT
Summary Introduction
Introduction:
Amphimixis is defined as a process of fusion of gametes from two different organisms, which leads to the formation of zygote.
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In females, meiosis is not completed (a) until birth. (b) until puberty. (c) until fertilization occurs. (d) until ovulation occurs.
(a) Compare the amount of cytoplasm and number of organelles in ova to that in sperm. (b) Explain why this difference is important to their function.
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
Chapter 28 Solutions
Human Anatomy (9th Edition)
Ch. 28 - Match each numbered item with the most closely...Ch. 28 - Prob. 2RFTCh. 28 - Prob. 3RFTCh. 28 - Prob. 4RFTCh. 28 - Prob. 5RFTCh. 28 - Prob. 6RFTCh. 28 - Prob. 7RFTCh. 28 - Prob. 8RFTCh. 28 - Match each numbered item with the most closely...Ch. 28 - Prob. 10RFT
Ch. 28 - Identify the two extra-embryonic membranes and the...Ch. 28 - Prob. 12RFTCh. 28 - Prob. 13RFTCh. 28 - Prob. 14RFTCh. 28 - 15. A blastocyst is a(n)
(a) extra-embryonic...Ch. 28 - During the second trimester, the most significant...Ch. 28 - Prob. 17RFTCh. 28 - Prob. 18RFTCh. 28 - The extra-embryonic membrane that forms the...Ch. 28 - During implantation, the (a) syncytiotrophoblast...Ch. 28 - 1. What would be the fate of an embryo if the...Ch. 28 - Prob. 2RCCh. 28 - 3. The stage of development that follows cleavage...Ch. 28 - Prob. 4RCCh. 28 - Prob. 5RCCh. 28 - Describe the effects of human chorionic...Ch. 28 - 7. What occurs during amphimixis?
Ch. 28 - Prob. 8RCCh. 28 - Prob. 9RCCh. 28 - Prob. 10RCCh. 28 - 1. Joe and Jane desperately want to have children,...Ch. 28 - 2. The virus that causes rubella, or "German...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- If 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_forwardThe secondary oocyte leaving the ovarian follicle is in, (a) interphase. (b) metaphase of the first meiotic division. (c) telophase of the second meiotic division. (d) metaphase of the second meiotic division.arrow_forwardThe..........is a hollow ball of cells that develops from the morula. a) Blastocyst b) Oviduct c) Ovary d) Chorionarrow_forward
- Which structure is part of the female reproductive organ? A (A) A (В) В (C) С (D) D B D.arrow_forwardThe secondary oocyte leaving the follicle is in (a) interphase. (b) metaphase of the first meiotic division. (c) telophase of the second meiotic division. (d) metaphase of the second meiotic division.arrow_forwardThe term morula is used for a solid cluster of cells generated by the cleavage of the zygote. This cluster is made up of (a) 4–8 cells, (b) 8–12 cells, (c) 12–16 cells, (d) 60–80 cells.arrow_forward
- Give the function of:(a) Corpus luteum(b) Endometriumarrow_forwardWhich statement about human reproduction is false?(A) Fertilization occurs in the oviduct.(B) Spermatogenesis and oogenesis require differenttemperatures.(C) An oocyte completes meiosis after a sperm penetrates it.(D) The earliest stages of spermatogenesis occur closest to thelumen of the seminiferous tubules.arrow_forwardIdentify the cell marked (1) in this diagram of spermatogenesis (A) secondary spermatocyte (B) primary spermatocyte (C) spermatogonium (D) spermatozoanarrow_forward
- Sperm need to be deposited in the vagina close to the time of ovulation because… a) Fertilisation needs to occur in the uterus b) The probability of fertilisation occurring in humans is about 25% c) The fusion of male and female gametes is the beginning of embryonic development d) Sperm and ovum are viable for a short time onlyarrow_forwardMeiosis in males produces four spermatids, each of which contains: (a) 23 chromosomes. (b) 23 pairs of chromosomes. (c) the diploid number of chromosomes. (d) 46 pairs of chromosomes.arrow_forwardWhat stimulates the completion of meiosis Il in a secondary oocyte? O a) A surge of Follicle-Stimulating Hormone (FSH) following the degeneration of the corpus luteum O b) A surge of Luteinising Hormone (LH) on day 13 of the menstrual cycle O) Sperm-egg binding at fertilisation d) Sperm-zona pellucida binding at fertilisationarrow_forward
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