What are the products of gametogenesis? A. Females- 1 egg ; Males- 2 sperm B. Females...

What are the products of gametogenesis?

A. Females- 1 egg ; Males- 2 sperm

B. Females – 4 eggs ; Males- 4 sperm

C. Females- 4 eggs ; Males- 1 sperm

D. Females- 1 egg ; Males- 4 sperm

Solutions

Expert Solution

Answer- D. Females- 1 egg; Males- 4 sperms

Explanation- Gametogenesis refers to the production of gametes in testes and ovary. In males, the primordial germ cells in seminiferous tubules undergoes mitosis and produces type-A and type- B spermatogonia. This type -B spermatogonia undergoes division and form primary spermatocyte which is diploid. A primary spermatocyte undergoes meiosis-I and forms two secondary spermatocyte. These two secondary spermatocyte undergoes meiosis-II and ultimately produces four (4) sperms.

Whereas in females, oogonia undergoes mitosis and forms primary oocyte. Both are diploid cell. Primary oocyte undergoes growth phase by the influence of FSH. Soon after primary oocyte undergoes meiosis-I and produces a secondary oocyte and a polar body. Both are haploid cell and unequal in size. The polar body is inactive. Through ovulation, this secondary oocyte comes out as egg.

Hence, option D is correct answer.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

What are the key differences in gametogenesis between females and males? What is the key step...

What are the key differences in gametogenesis between females and males? What is the key step in spermatogenesis that allows for unlimited sperm production? This step is not present in oogenesis and therefore only a finite number of eggs could be produced. (0-5pts) Guidelines: You must include in your answer how the processes are similar and how they differ. What would health implications have the finite number of eggs present to the female? What organs are responsible for each gametogenesis?...

What is true about gametogenesis in both males and females? A) Primary spermatocytes and primary oocytes...

What is true about gametogenesis in both males and females? A) Primary spermatocytes and primary oocytes contain the diploid number of chromosomes. B) The haploid number of chromosomes first appears in the gametes. C) Gametes are formed in special structures called follicles. D) Meiosis II is completed in all of the gametes that are produced.

Sex (1 = Males, 2 = Females); Size_car (1 = Small, 2 = Medium, 3 =...

Sex (1 = Males, 2 = Females); Size_car (1 = Small, 2 = Medium, 3 = Large). Data ID AGE SEX SIZE_CAR 1 18 1 2 2 28 1 2 3 44 1 3 4 20 2 2 5 39 2 2 6 53 2 3 7 28 1 1 8 18 1 1 9 24 2 1 10 21 1 2 11 35 1 3 12 38 1 3 13 22 1 1 14 29 1 2 15 63 ...

Is the life expectancy among African-American females and males and Caucasian females and males different. What...

Is the life expectancy among African-American females and males and Caucasian females and males different. What factors may account for these differences?

1. What is an acrosomal reaction after egg and sperm first contact? What molecular interaction activates...

1. What is an acrosomal reaction after egg and sperm first contact? What molecular interaction activates the acrosomal reaction? What is the purpose of acrosomal reaction? 2. What proteins on sperm tether the sperm to egg vitelline envelope? What would the consequence if this protein loses its specificity? (20 points) 3. What is polyspermy? What is the consequence of polyspermy? 4. What is the mechanism for fast block to polyspermy? What would be the influence on fertilization if the sodium...

1. A sociologist is interested in the voting rates of males and females. Two hundred males...

1. A sociologist is interested in the voting rates of males and females. Two hundred males and two hundred females are randomly sampled. Of these, seventy percent of males and sixty percent of females voted in the last election. a. Construct a 95% confidence interval around the difference in the proportion of men and women in the population who voted in the last election. b. Interpret this interval. c. Test the null hypothesis that, in the population, there is no...

1) why would the term urogenital apply more to males than females? 2) what role can...

1) why would the term urogenital apply more to males than females? 2) what role can the nervous system have in ED(erectile dysfunction)? 3)Despite being well anchored in the pelvic cavity,the uterus can prolapse. how does this happen? 4) Name the body system that is most important in maintaining homeostasis in the body and Briefly explain why ?

1. What is a Dominance Hierarchy? A difference in coloration between males and females A way...

1. What is a Dominance Hierarchy? A difference in coloration between males and females A way that newborn animals recognize their parents The investment of energy into offspring by their parents A social system that is organized with individuals at higher and lower levels in that animal community 2. When a male frog calls out to attract a female to mate with that is an example of: Imprinting Acoustic communication Asexual reproduction Dominance hierarchy 3. What is the evolutionary benefit...

Question 1 Immediately at the moment when a sperm cell fertilises an egg (but before the...

Question 1 Immediately at the moment when a sperm cell fertilises an egg (but before the cell can be called a zygote), how many chromatids are present in the cellular structure? Select one: a. 23 b. 46 c. 92 d. 69 Question 2 Which structure in a blastocyst which eventually develops into the chorion and placenta? Select one: a. Trophoblast b. Inner cell mass c. Nurse cell mass d. Uterine lining Question 3 What is determined first during prenatal development,...

Inguinal hernias: A- occur with equal frequency in males and females. B- are signs of old...

Inguinal hernias: A- occur with equal frequency in males and females. B- are signs of old age and almost never congenital. C- always enter the inguinal canal. D- always reach the scrotum.

Subjects