Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Question
Chapter 41, Problem 10SQ
Summary Introduction
Concept introduction: Fertilization is the process where the male and female gametes unite to form the zygote. The sperm and egg, the male and female gametes respectively, have only haploid number of chromosomes. Binding of sperm to egg causes several changes in the egg.
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Sperm cells originally come from a diploid cell called a…
Group of answer choices
A. secondary oocyte
B. primary spermatocyte
C. gonadal cell
D. acrosome
E. seminiferous cell
Why 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 mitochondria
Sperm and ova are similar in terms of ________. a. size b. quantity produced per year c. chromosome number d. flagellar motility
Chapter 41 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 41 - Stuck Sperm Cells lining the epididymis secrete a...Ch. 41 - Prob. 2DAACh. 41 - Prob. 3DAACh. 41 - Prob. 4DAACh. 41 - Sexual reproduction ___ . a. requires formation of...Ch. 41 - The ___ is a genetic dead end. a. polar body b....Ch. 41 - Prob. 3SQCh. 41 - Prob. 4SQCh. 41 - During a menstrual cycle, a midcycle surge of...Ch. 41 - Prob. 6SQ
Ch. 41 - Prob. 7SQCh. 41 - Male germ cells divide by meiosis inside the...Ch. 41 - A male attains an erection when ___ . a. muscles...Ch. 41 - Prob. 10SQCh. 41 - Prob. 11SQCh. 41 - Prob. 12SQCh. 41 - Match each disease with the type of organism that...Ch. 41 - Match each structure with its description. ____...Ch. 41 - Match each hormone with its source. ____ FSH and...Ch. 41 - Prob. 1CTCh. 41 - Fraternal twins are nonidentical siblings that...Ch. 41 - Some sperm mitochondria enter an egg during...Ch. 41 - Occasionally more than one sperm penetrates and...
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- Label the parts of the illustration from the given set of choicesarrow_forwardTC ARO YOUT C Which of the following events does not occur in spermatogenesis? (Circle the correct answer.) a. Diploid germ cells divide by mitosis to form diploid spermatogonia. b. Some of these spermatogonia divide by mitosis, forming haploid primary spermatocytes. c. The primary spermatocyte enters meiosis I, forming two haploid secondary spermatocytes. d. Two secondary spermatocytes undergo meiosis II, forming four spermatids. e. Spermatids mature into haploid sperm cells. PAO 7 In humans, spermatogenesis occurs in the seminiferous tubules of the testes. (Circle the correct answer.) True False . In plants, (Circle the correct answer.) a. the life cycle is different from that of animals in that plants alternate between diploid and haploid forms plants, and male gametes are produced in the anthers of flowersarrow_forwardWithout SRY expression, an embryo will develop ________.a. male reproductive structuresb. female reproductive structuresc. no reproductive structuresd. male reproductive structures 50 percent of thetime and female reproductive structures 50percent of the timearrow_forward
- An individual has the chromosomal makeup XX and sexual differentiation proceeds normally. Which of the following would be the case? a. Mullerian ducts will degenerate b. Estrogen promotes development of the vagina c. Anti-Mullerian hormone is present d. Wolffian ducts will develop e. There will be no formation of fetal testesarrow_forwardExplanation requiredarrow_forwardRegarding oogenesis, diplotene stage begins at a.birth b.Meiosis II c.7th month of fetal development. d.pubertyarrow_forward
- The placenta is formed from ________.a. the embryo’s mesenchymal cellsb. the mother’s endometrium onlyc. the mother’s endometrium and the embryo’schorionic membraned. the mother’s endometrium and the embryo’sumbilical cordarrow_forwardContact with the zona pellucida triggers ___________, causing sperm to release digestive enzymes that break down the ___________. Group of answer choices a. capacitation/corona radiata b. capacitation/zona pellucida c. the acrosome reaction/zona pellucida d. the acrosome reaction/corona radiataarrow_forwardMeiosis is a reduction division, specifically pertaining to germ cells in the process of reproduction, Which of the following human cells is 1N and haploid? Select one: O a. Type A1 Spermatogonium b. Spermatid c. Primary spermatocyte d. Germinal epithelial cell e Type B Spermatogoniumarrow_forward
- Events that leads to the production of Siamese/conjoined twins.arrow_forwardWithout the motility of this structure in the female reproductive system, the ovulated egg would not make it to the fallopian tube. a. Corpus luteum b. Antrum c. Fimbrae d. Placenta e. Cervixarrow_forwardNE The black line drawn across this photomicrograph of a seminiferous tubule represents the line of demarcation between which of the following ? Immediately above Immediately below A. Cells undergoing meiosis II Cells undergoing meiosis I B. Cells undergoing spermatocytogenesis Cells undergoing spermiogenesis C. Cells undergoing spermatogenesis Vascular system D. Cells undergoing spermiogenesis Myoid cellsarrow_forward
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