What is the final stage of sperm maturation

Question

Problem:

Question 1: The final stage of sperm maturation is cumulatively called ...... and does not occur until the sperm has been in the female's reproductive tract for some time.

1. Fertilization
2. Ejaculation
3. Capacitation
4. Spermatogenesis
5. None of the above

 

Question 2: The resting membrane potential of the egg cell membrane is maintained at :

1. + 70 mV
2. -70 mV
3. -20 mV
4. +20 mV
5. None of the above

 

Question 3: In sea urchin, prevention of polyspermy is achieved by the fusion of the contents of granules to form a ......

1. Vitelline envelope
2. Fertilization envelope
3. Mucopolysaccharide
4. Acrosome vesical
5. Both A and B are correct

 

Question 4: Mammalian egg cell membrane is surrounded by a thick extracellular matric known

1. Vitelline envelope
2. Zona pellucida
3. Corona radiate
4. Egg jelly
5. Cumulus

 

Question 5: If two sperms successfully enter oan ovum and fertilization occurs which of the following be expected to happen:

1. A zygote with 3 nuclei would be formed
2. One sperm would be destroyed by the proteolytic enzymes of the cortical granules in t
3. Triplets would be formed
4. A baby with three sets of each organ would be formed
5. A zygote with triploid set of chromosomes would be formed

 

Question 6: Scientists interested in learning the role of cumulus- containing matric, surgically remoing layer from a mammalian egg just about to be released by the ovary and then re-implanted back into the ovary. Based on your understanding of the function of the cumulus layers, which you think happened to the mature egg assuming it did not die?

1. It entered the oviduct to be fertilized
2. It developed another cumulus matrix layer around it
3. It was unable to adhere or enter the oviduct for fertilization
4. It caused early menopause
5. Both A and B are correct

Please choose the correct option of the questions.