Match the following hormones with the respective disease:

NEET-2019 Chemical-Coordination-and-Integration [class-xi ]

• (A)-(V), (B)-(I), (C)-(II), (D)-(III)
• (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
• (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
• (A)-(V), (B)-(IV), (C)-(I), (D)-(III)
Correct Option: D  [ (A)-(V), (B)-(IV), (C)-(I), (D)-(III) ]

Remark:

How does steroid hormone influence the cellular activities?

NEET-2019 Chemical-Coordination-and-Integration [class-xi ]

• Using aquaporin channels as second messenger.
• Activating cyclic AMP located on the cell membrane.
• Binding to DNA and forming a gene-hormone complex.
• Changing the permeability of the cell membrane.
Correct Option: C  [ Binding to DNA and forming a gene-hormone complex. ]

Remark:

Which of the following statements is incorrect?

NEET-2019 Reproduction-in-Organisms [class-xii ]

• Morels and truffles are edible delicacies.
• Yeasts have filamentous bodies with long threadlike hyphae.
• Claviceps is a source of many alkaloids and LSD.
• Conidia are produced exogenously and ascospores endogenously.
Correct Option: B  [ Yeasts have filamentous bodies with long threadlike hyphae. ]

Remark:

Which of the following statements is incorrect?

NEET-2019 Reproduction-in-Organisms [class-xii ]

• Morels and truffles are edible delicacies.
• Yeasts have filamentous bodies with long threadlike hyphae.
• Claviceps is a source of many alkaloids and LSD.
• Conidia are produced exogenously and ascospores endogenously.
Correct Option: B  [ Yeasts have filamentous bodies with long threadlike hyphae. ]

Remark:

Select the correct sequence of transport of sperm cells in male reproductive system:

NEET-2019 Human-Reproduction [class-xii ]

• Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus
• Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra
• Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra
• Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal ® Urethra ® Urethral meatus
Correct Option: A  [ Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus ]

Remark:

What is the fate of the male gametes discharged in the synergid?

NEET-2019 Human-Reproduction [class-xii ]

• One fuses with the egg and other fuses with central cell nuclei.
• One fuses with the egg, other(s) fuse(s) with synergid nucleus.
• All fuse with the egg.
• One fuses with the egg, other(s) degenerate(s) in the synergid.
Correct Option: A  [ One fuses with the egg and other fuses with central cell nuclei. ]

Remark:

Extrusion of second polar body from egg nucleus occurs:

NEET-2019 Human-Reproduction [class-xii ]

• simultaneously with first cleavage
• before entry of sperm into ovum
• after fertilization
• after entry of sperm but before fertilization
Correct Option: D  [ after entry of sperm but before fertilization ]

Remark:

Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains:

NEET-2019 Human-Reproduction [class-xii ]

• Immunoglobulin A
• Macrophages
• Monocytes
• Natural killer cells
Correct Option: A  [ Immunoglobulin A ]

Remark:

Select the hormone-releasing Intra-Uterine Devices?

NEET-2019 Reproductive-Health [class-xii ]

• Lippes Loop, Multiload 375
• Progestasert, LNG-20
• Multiload 375, Progestasert
• Vaults, LNG-20
Correct Option: B  [ Progestasert, LNG-20 ]

Remark:

NEET-2019 Reproductive-Health [class-xii ]

• Pills, Emergency contraceptives, Barrier methods
• CuT, Pills, Emergency contraceptives
• Barrier method, Lactational amenorrhea, Pills
• Lactational amenorrhea, Pills, Emergency contraceptives
Correct Option: D  [ Lactational amenorrhea, Pills, Emergency contraceptives ]

Remark: