18 Questions
What is the number of chromosomes in mature gametes?
23
What is the result of the first cellular division in spermatogenesis?
Two diploid cells
What is the process by which DNA is replicated in a primary spermatocyte?
Mitosis
What is the result of the second meiotic division in spermatogenesis?
Four cells with half the number of chromosomes
What is the process by which early spermatids are transformed into sperm?
Spermiogenesis
What is the final stage of germ cell formation in spermatogenesis?
Spermatozoa
Where are the least mature cells, spermatogonia, located?
Inside the seminiferous tubules, lining the basement membrane
What is the process called that begins with spermatogonia and concludes with the production of sperm?
Spermatogenesis
How often does a new production cycle of spermatogenesis start?
Every 16 days
What is the total number of chromosomes in a diploid spermatogonium?
46
What happens to sperm counts in men after the age of 35?
They slowly decline
What is the approximate duration of one production cycle of spermatogenesis?
64 days
What is the result of the two divisions of meiosis during spermatogenesis?
Haploid spermatids
Where do sperm mature after being released from the seminiferous tubules?
Epididymis
What occurs during spermiogenesis?
Spermatids are transformed into spermatozoa
What is the function of the seminal vesicle?
Adds fructose and proteins to sperm
What is the purpose of secretions from the prostate?
Helps sperm travel through the urethra
What is the function of the bulbourethral glands?
Protects sperm and cleanses and lubricates the urethra
Learn about the process of spermatogenesis, including the stages of spermatogonia, primary spermatocyte, and meiosis. Understand how diploid cells are formed and how DNA is replicated. Test your knowledge of human reproduction and cell division.
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