Q. No.| COLUMN I | COLUMN II | ||
| A. | Transfer of sperms into the female genital tract | P. | Fertilisation |
| B. | Embryonic development | Q. | Insemination |
| C. | Attachment of blastocyst to the uterine wall | R. | Gestation |
| D. | Fusion of male and female gametes | S. | Implantation |
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | R | Q | S | p |
| 3. | Q | R | S | P |
| 4. | S | P | R | Q |
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The testes are situated outside the abdominal cavity within a pouch called the scrotum. This is necessary as:
| 1. | The scrotum can contain lengthy ducts for the transfer of sperms |
| 2. | Scrotum helps in maintaining the low temperature of the testes necessary for spermatogenesis |
| 3. | Scrotum reduces the pressure around the testes necessary for spermatogenesis |
| 4. | Scrotum can store huge amounts of sperms |
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| 1. | I contributes acidic fluid to the seminal plasma. |
| 2. | II is an unpaired gland. |
| 3. | III stores sperms. |
| 1. | Only B | 2. | Only A and C |
| 3. | Only C | 4. | A, B, and C |
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Each seminiferous tubule is lined by male germ cells called:
| 1. | Spermatogonia | 2. | Primary spermatocytes |
| 3. | Sertoli cells | 4. | Leydig cells |
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Leydig cells:
| 1. | Are present in seminiferous tubules and secrete androgens |
| 2. | Are present in seminiferous tubules and help in the maturation of sperms |
| 3. | Are present in interstitial space and secrete androgens |
| 4. | Are present in interstitial space and help in the maturation of sperms |
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| A. | the primary source of testosterone or androgens in males |
| B. | male germ cells in the inside lining of seminiferous tubules |
| C. | spermatids released from seminiferous tubules |
| D. | Present in the inside lining of seminiferous tubules, they nourish developing sperm cells |
| 1. | Only A, B, and C | 2. | Only A, B, and D |
| 3. | Only B, C, and D | 4. | A, B, C, and D |
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The correct sequence of male sex accessory ducts beginning from testis would be:
| 1. | rete testis → vasa efferentia → epididymis → vas deferens |
| 2. | rete testis → vas deferens → vasa efferentia → epididymis |
| 3. | vas deferens → vasa efferentia → epididymis → rete testis |
| 4. | vasa efferentia → vasa deferens → epididymis → rete testis |
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The ducts of the seminal vesicles open into:
| 1. | Ejaculatory duct | 2. | Rete testis |
| 3. | Urethra | 4. | Vas deferens |
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