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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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
If there is no fertilization, oocyte will arrested at
a.Metaphase II
b.Telophase II
c.Anaphase II
d. Prophase II
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
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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- Sperm and ova are similar in terms of ________. a. size b. quantity produced per year c. chromosome number d. flagellar motilityarrow_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_forwardAn egg cell originally comes from an unspecialized diploid cell called a(an)… Group of answer choices A. secondary oocyte B. follicle C. primary oocyte D. oviduct E. oogoniumarrow_forward
- Without 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_forwardAn 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_forwardWhich of the following does NOT aid the sperm in fertilization? a. increased mitochondria b. flageullum development c. cytoplasmic bridge d. hyaluronidase and protease e. acrosomesarrow_forward
- a. The ovaries produce secondary the female sex cells. b. Stem cells, called divide by to produce primary each form part of a c. At the onset of puberty, tens of thousands of ovaries. Between menarche and menopause, each primordial follicle develops into a in the and its primary oocyte completes d. Some primary oocytes become 23-chromosome cells that begin then pause. secondary oocyte is released into is completed when e. Each month, the uterine tube. the oocyte isarrow_forwardEgg and sperm cells are... A. Gametes B. Diploid C. Somatic cells D. Zygotesarrow_forwardRegarding oogenesis, diplotene stage begins at a.birth b.Meiosis II c.7th month of fetal development. d.pubertyarrow_forward
- During gastrulation, cells from the _____ layer of the bilaminar germinal disc migrate and form the three primary germ layers. a. notochord b. hypoblast c. epiblast d. mesoblastarrow_forwardThe 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_forward16. In the follicular phase of the menstrual cycle the pituitary gland secretes FSH that stimulates the egg cells in the ovaries to ____________. * a. Rupture b. Grow c. Impregnate d. All of the above. 17. Which hormone will be produced once the LH stimulates Leydig cell? * a. Estrogen b. FSH c. Progesterone d. Testosterone 18. On the 14th day of the menstrual cycle which hormone is needed to be stimulated for the ovary to release the matured egg cell? * a. Progesterone b. FSH c. LH d. Estrogenarrow_forward
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