Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337670319
Author: STARR
Publisher: Cengage
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Textbook Question
Chapter 41, Problem 2SQ
The ___ is a genetic dead end.
- a. polar body
- b. oocyte
- c. ovum
- d. sperm
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What immediate effect does the SRY gene have on a developing fetus?
A) It directs the gonads to develop into testes.
B) It directs the gonads to develop into ovaries.
C) It directs the Müllerian ducts to develop into female internal reproductive structures.
In females, meiosis is not completed (a) until birth. (b) until puberty. (c) until fertilization occurs. (d) until ovulation occurs.
The..........is a hollow ball of cells that develops from the morula.
a) Blastocyst
b) Oviduct
c) Ovary
d) Chorion
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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- An individual who is XY but is missing the SRY gene would be expected to develop into a. a male. b. a female. c. a hermaphrodite. d. none of the above because sex differentiation would not occur.arrow_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_forward2. a person is xy, has sry gene, is androgen insensitive, has male internal anatomy but female external anatomy. which of the following is caused by a lack of androgen receptors? a. xy chromosomes b. elevated plasma androgens c. lack of uterus d. presence of testesarrow_forward
- After fertilisation, the resulting cell which gives rise to a new individual is the: (a) embryo (b) ovum (c) foetus (d) zygotearrow_forwardBinding of a sperm to an oocyte plasma membrane causes the oocyte to______ . a. enter an oviduct c. secrete estrogen b. complete meiosis II d. expel its nucleusarrow_forward1. If there are 400M ovum/egg cells in a 1point woman's body, how many primary oocytes are there during the initial stage of development? A. 100M B. 200M C. 30OM D. 400M 2. How many polar bodies will be formed after the fornmation of Ovum? A. 1 B. 2 C. 3 D. 4arrow_forward
- Figure 18.12 Which of the following statements about the male reproductive system is false? a. The vas deferens carries sperm from the testes to the seminal vesicles. b. The ejaculatory duct joins the urethra. c. Both the prostate and the bulbourethral glands produce components of the semen. d. The prostate gland is located in the testes.arrow_forwardNutrient and waste requirements for the developing fetus are handled during the first few weeks by _____. a. the placenta b. diffusion through the endometrium c. the chorion d. the blastocystarrow_forwardA human blastocyst normally implants in ................. a. an oviduct c. the uterus b. a seminiferous tubule d. the vaginaarrow_forward
- A baby born four weeks before its due date is most likely to have anunderdevelopeda. central nervous system.b. heart.c. reproductive system.d. All of the above are correct.arrow_forwardSperm 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 cellarrow_forwardIn human beings, after fertilisation, the structure which gets embedded in the wall of uterus is: (a) ovum (b) embryo (c) foetus (d) zygotearrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY