At puberty, the testes contain a finite number of cells and producean enormous number of sperm cells during the life span of a male.Explain why testes do not run out of spermatogonial cells

Q: Sperm must undergo capacitation before they are capable of fertilizing the egg. What is…

A: Fertilization is the process of the combination of the haploid male gamete (Sperm) with the haploid…

Q: Name the cells of testes that produce male hormones.

A: The reproductive system of an organism is also known as the genital system. It is the biological…

Q: Describe the process of spermatogenesis

A: The male gamete - sperm is a reduced cytoplasm haploid cell. Sperm have two very important regions…

Q: a. How many spermatozoa does one secondary spermatocyte produce?   b. Where in zygote does the first…

A: The male gamete "sperm" fuses with the female gamete "Ovum" and after this fusion "Zygote" develops.…

Q: If there are 7 spermatogonium that will undergo cell division, how many functional spermatozoa will…

A: Spermatogenesis is the process of production of male gametes(sperms) inside the seminiferous tubules…

Q: If an intact rat was injected with testosterone over several weeks, why would his prostate increase…

A: The testosterone is a hormone made by the human body. It’s vitally produced in men by the organ…

Q: Hormonal birth control pills contain low doses of estrogen and progesterone.  Taking these pills…

A: FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries.  LH triggers…

Q: Explain the process of spermatogenesis and oogenesis in vertebrates.

A: Spermatogenesis is the by which sperm cell develops. Oogenesis is the growth process by which the…

Q: Describe the hormonal control of spermatogenesis in terms of the hypothalamic-pituitarygonadal axis…

A: The process of sperm cell formation is called spermatogenesis. To create spermatozoa, rounded…

Q: Explain the physiological mechanism used by the Testes to regulate their temperature demand.

A: Testes are the primary male gonads in man. Each testis is oval in shape, with a length of about…

Q: If human fetus were exposed to very low levels of both testosterone and estrogen during prenatal…

A: People with both male and female anatomy and mixed characteristics are called as intersexes. The…

Q: Differentiate Sperm cells from Sertoli cells. what is the lining epithelium of the testis?

A: Introduction: Spermatozoa are the male gametes that are produced during the process of…

Q: In animal spermatogenesis, there are how many of the following cell/s are produced from 10…

A: The mode of reproduction that involves the fusion of gametes from parents of different sexes occur…

Q: During which stage of cell division are spermatids formed from the secondary spermatocytes?

A: BASIC INFORMATION  GAMETOGENESIS  It is the process of formation of gametes. The diploid…

Q: Name the structures that regulate the temperature of the testes, and explain how they function to…

A: The reproductive organs that function to produce the motile male gamete called sperm, and the sex…

Q: Predict the effect on the ovarian cycle of administering a relativelylarge amount of estrogen and…

A: OVARIAN CYCLE The ovarian cycle refers to all the changes taking place in the ovaries during the 28…

Q: Explain why fertilization requires more than one sperm.

A: The zone pellucida is seen as a dense, transparent girdle surrounded by the Corona radiata cells.…

Q: Describe the principal events of spermatogenesis.

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: Tell the difference (if any) between each of the following pairs of sound-alike terms: (a) sperm and…

A: The reproductive system comprises various organs that work together for the function of sexual…

Q: Describe the role of pregnancy hormones during human pregnancy. What hormones prepare the mammary…

A: Several hormones are secreted from the placenta to maintain the pregnancy and to prepare the body…

Q: What are the different parts of a sperm? Explain their importance in fertilization.

A: Reproduction is an essential process in the sustenance of organisms. The male and female gametes…

Q: Compare and contrast the Spermatogenesis and structure of the testes of: Rat (Vertebrates) Starfish…

A: Introduction: Spermatogenesis is the process by which male germ cells, called spermatogonia, undergo…

Q: A female egg cell has two outer membranes how does the egg cell prevent polyspermy? if polyspermy…

A: Sexual reproduction refers to the form of reproduction that occurs through the union of male and…

Q: With a line diagram trace the route of the sperm from the its point of production to the point in…

A: The fertilization is the process that involves the fusion of male gamete with the female gamete. The…

Q: The male hormones are produced over a lifetime. That explains why a man can father a child well into…

A: The female reproductive system produces the female gamete and protects the developing embryo. It…

Q: Contrast the number of sperm that are produced from oneprimary spermatocyte and the number of eggs…

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: What barriers must a sperm cross in order to fuse with the egg? How does the sperm accomplish this…

A: The union of two haploid gametes, the spermatozoa and the oocyte, hereafter referred to as the egg,…

Q: An oocyte lives for only 24 hours after ovulation if it is not fertilized. The trip down the uterine…

A: The Fallopian tube serve as the site for fertilization. Fertilization specifically occur in the…

Q: Describe in detail the process of spermatogenesis including cells involved and time length.

A: The process of formation of the sperms (male gametes) is referred to as spermatogenesis. The process…

Q: With a line diagram,trace the roots of the sperm from it's point of production to the point in…

A: The primary sex organs - testis in males and ovaries in females produce gametes i.e. sperms and ovum…

Q: Describe the process of gametogenesis in females and males

A: The gametogenesis is the process of formation of the haploid gametes in the sexually reproducing…