Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 43, Problem 13RQ
Which of the following cells in spermatogenesis is diploid?
- primary spermatocyte
- secondary spermatocyte
- spermatid
- sperm
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Chapter 43 Solutions
Biology 2e
Ch. 43 - Figure 43.8 Which of the following statements...Ch. 43 - Figure 43.15 Which of the following statements...Ch. 43 - Figure 43.17 Which of the following statements...Ch. 43 - Which form of reproduction is thought to be best...Ch. 43 - Which form of reproduction can result from damage...Ch. 43 - Which form of reproduction is useful to an animal...Ch. 43 - Genetically unique individuals are produced...Ch. 43 - External fertilization occurs in which type of...Ch. 43 - Which term applies to egg development within the...Ch. 43 - Which term applies to egg development outside the...
Ch. 43 - Sperm are produced in the______ scrotum seminal...Ch. 43 - Most of the bulk of semen is made by the...Ch. 43 - Which of the following cells in spermatogenesis is...Ch. 43 - Which female organ has the same embryonic origin...Ch. 43 - Which female organ has an endometrial lining that...Ch. 43 - How many eggs are produced as a result of one...Ch. 43 - Which hormone causes Leydig cells to make...Ch. 43 - Which hormone causes FSH and LH to be released?...Ch. 43 - Which hormone signals ovulation? FSH LH inhibin...Ch. 43 - Which hormone causes the regrowth of the...Ch. 43 - Nutrient and waste requirements for the developing...Ch. 43 - Progesterone is made during the third trimester by...Ch. 43 - Which contraceptive method is 100 percent...Ch. 43 - Which type of short term contraceptive method is...Ch. 43 - Which hormone is primarily responsible for The...Ch. 43 - Major organs begin to develop during which part of...Ch. 43 - Which of the following is false? The endoderm,...Ch. 43 - During cleavage, the mass of cells: increases...Ch. 43 - Which of the following gives rise to the skin...Ch. 43 - The ribs form from the ___________ . notochord...Ch. 43 - Why is sexual reproduction useful if only half the...Ch. 43 - What determines which sex will result in offspring...Ch. 43 - What are the advantages and disadvantages of...Ch. 43 - Why would paired external fertilization be...Ch. 43 - Describe the phases of the human sexual response.Ch. 43 - Compare spermatogenesis and oogenesis as to timing...Ch. 43 - If male reproductive pathways are not cyclical,...Ch. 43 - Describe the events in the ovarian cycle leading...Ch. 43 - Describe the major developments during each...Ch. 43 - Describe the stages of labor.Ch. 43 - What do you think would happen if multiple sperm...Ch. 43 - Why do mammalian eggs have a small concentration...Ch. 43 - Explain how the different germ layers give rise to...Ch. 43 - Explain the role of axis formation in development.
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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
- Ovulation releases _________. a. the corpus luteum b. a primordial follicle c. a primary oocyte d. a secondary oocyte and first polar bodyarrow_forwardFigure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.arrow_forwardFigure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.arrow_forward
- Which is the correct order for one turn of the menstrual cycle? a. corpus luteum forms, ovulation, follicle forms b. follicle grows, ovulation, corpus luteum formsarrow_forwardHow Is Sex Determined? The absence of a Y chromosome in an early embryo causes the: a. embryonic testis to become an ovary b. Wolffian duct system to develop c. Mllerian duct system to degenerate d. indifferent gonad to become an ovary e. indifferent gonad to become a testisarrow_forwardThe head of a sperm contains a haploid nucleus with 23 chromosomes. True Falsearrow_forward
- Which of the following is NOT true regarding spermatogenesis? Initial spermatozoa formed are not mobile and cannot fertilize. Spematogonia have diplold chromosome. Spematocyte undergoes two rounds of division to produce 4 diploid sperm Some of the spermatogonia become reservoir cells Spematogonia breaks away from the basement membrane to develop Into sperm.arrow_forwardWhich of the following structures would a sperm cell pass through last on its way out of the body during ejaculation? O prostatic urethra ejaculatory duct O epididymis seminiferous tubulearrow_forwardSpermatogenesis is cyclic and exhibits spermatogenic wave inside the seminiferous tubules. Which of the following factor contribute to the spermatogenic cycle/wave? Retinoic acid signaling in the testis. AR levels in Sertoli cells. Activin and inhibin levels within the seminiferous tubule. Androgen receptor (AR) levels in Leydig and peritubular cells. Testosterone levels in the lumen of the seminiferous tubules.arrow_forward
- All of the following are true of spermatogenesis EXCEPT: Question 21 options: The products are spermatozoa that each have a head, midpiece and tail. One spermatogonium produces 4 spermatids DNA replicates once, but cells divide twice. Spermatids containing 23 chromosomes (1n) are produced. Genetically diverse spermatids are created.arrow_forwardAnatomy and physiologyarrow_forwardThe following does NOT occur in spermatogenesis? " Suspension of cytokinesis spermatocyte replication & melosis Spermitogenesis Spermlationarrow_forward
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