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1351.

Which is correct?A. Menstrual cycle is present in all mammalsB. Menstrual cycle is present in all primates.C. Estrus cycle occurs in all mammalsD. Most m ammals are ovoviviparous.

Answer» Correct Answer - B
Discussion
1352.

Yellow corpus luteum occurs in a mammals inA. Heart to initiate heart beatB. Skin to function as pain receptorC. Brain and connects cerebral hemispheresD. Ovary for secretion of progesterone.

Answer» Correct Answer - D
Discussion
1353.

Fertilization is :A. Union of diploid spermatozoon with diploid ovum to form diploid zygoteB. Union of haploid sperm with haploid ovum to form haploid zygoteC. Union of haploid sperm with haploid ovum to form diploid zygoteD. Union of diploid sperm with haploid ovum to form triploid zygote.

Answer» Correct Answer - C
Discussion
1354.

What would happen if vasa deferentia of man are cut?A. Sperms are non-nucleateB. Spermatogenesis does not occurC. Semen is without spermsD. Sperms are nomotile.

Answer» Correct Answer - C
Discussion