Biology: The Dynamic Science
4th Edition
ISBN: 9781337246422
Author: Peter J. Russell; Paul E. Hertz; Beverly McMillan
Publisher: Cengage Learning US
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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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Which of the following statements about oocytes and ovulation is correct? a. The production of primary oocytes continues in women from the onset of puberty until the onset of menopause. b. Meiotic divisions are complete at the time of ovulation. c. At ovulation, the structure released from the follicle includes a secondary oocyte and polar body. d. All of these statements are correct
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Chapter 49 Solutions
Biology: The Dynamic Science
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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- Spermatogonia divide by mitosis to form a new spermatogonium and a. a sperm. b. spermatids. c. a primary spermatocyte. d. zygotes.arrow_forwardWhich of the following statement does NOT describe the event that occurs if the ovum is not fertilized? Select one: A. Progesterone maintains the endometrium for the zygote. B. Low level of progesterone results in menstruation. C. The corpus luteum degenerates and stops producing estrogen and progesterone. D. GnRH, FSH, and LH levels begin to increase.arrow_forwardOogenesis involves germ cells in the ovary undergoing meiosis to produce a functional ovum at the end of the process.Which of the following cells is penetrated by a sperm cell during the process of fertilization? Select one: a. Secondary oocyte b. Oogonia c. Primary oocyte d. Ovumarrow_forward
- Which 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_forwardWhich of the following statements does NOT describe the events that occur if the ovum is not fertilized? Select one: a. The corpus luteum degenerates and stops producing estrogen and progesterone. b. GnRH, FSH, and LH levels begin to increase. c. Progesterone maintains the endometrium for the zygote. d. Low levels of progesterone result in menstruation.arrow_forwardFour spermatozoa arise from each:- a. primordial germ cell. b. type A spermatogonium. c. type B spermatogonium. d. secondary spermatocyte. e. spermatidarrow_forward
- 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.arrow_forwardDuring the embryonic period each of the three germ layers gives rise to a number of specific tissues & organs, one of the following statements is not true? O a. The intermediate mesoderm will give rise to the urogenital system. O b. Blood cells & blood vessels arise from the mesoderm. O c. Paraxial mesoderm is divided into small segment (blocks) known as somites. O d. Neurulation is the process by which the neural plate forms the gut tube. O e. In general, the ectoderm gives rise to structures & organs that maintain contact with the outside world. Clear my choicearrow_forwardDamage to the sustentacular cells of the testes could impair:a. FSH and LH production. c. oogenesis.b. production of estrogens. d. spermatogenesis.arrow_forward
- Which of the following statements does NOT correctly describe the similarities and differences between male and female reproductive systems? Select one: a. Millions of mature sperm are produced on a daily basis, whereas single mature ovum is released every 28 days. b. Meiosis is completed in eggs after fertilization begins, whereas a mature sperm has completed meiosis prior to fertilization. c. Eggs and sperm contain exactly half of the genetic material of a normal somatic cell. Many zygotes with an abnormal number of genetic material often do not successfully implant. d. Eggs and sperm can survive for 3 to 5 days in the Fallopian tubes.arrow_forwardWhich of the following does not describe the accessory glands of the female reproductive system? TheyA. are saclike expansions of the vaginal region. B. Are muscular and ectodermal in origin.C. usually open at the apical portion of the bursa copulatrix.D. creamy white in color and opens into the genital chamber. Spermatophores are specialized packets held together by glands thatA. play a role in influencing the permeability of the testicular wall.B. are used to transport sperms into the female reproductive tract.C. regulate the release of sperm cells.D. stimulate contraction of the genital ducts. The zone of the testicular follicle where the primary spermatocytes become secondary spermatocytes and spermatids during the first and second meiosisrespectively is the zone ofA. transformation.B. maturation and reduction.C. growth.D. germarium. A hormone which has been shown in some species to have an inhibitory effect on spermatogenesis isA. ecdysone.B. peptide hormone.C. juvenile hormone.D.…arrow_forwardThe cells that give rise to gametesa. are derived from the mesoderm.b. often arise independently from the three germ layers.c. originate directly from the tissue that will develop into thegonads.d. are some of the last cells of the embryo to differentiate.e. are formed the same way in all animals.arrow_forward
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