MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a layer that the sperm has to encounter before reaching the egg nuclei? |
| A. | Zona pellucida |
| B. | Corona radiata |
| C. | Perivitelline space |
| D. | Zona radiata |
| Answer» E. | |
| 2. |
The sex ratio is low owing to the inherent bias in the number of sperms that carry Y chromosome. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The sex of the human baby is male if ______ |
| A. | sperm has X chromosome |
| B. | sperm has Y chromosome |
| C. | ovum has X chromosome |
| D. | ovum has Y chromosome |
| Answer» C. ovum has X chromosome | |
| 4. |
Which of the following is the correct number of chromosomes based on the cell type? |
| A. | Sperm: 23; Egg: 23; Zygote: 23 |
| B. | Sperm: 46; Egg: 46; Zygote: 46 |
| C. | Sperm: 23; Egg: 23; Zygote: 46 |
| D. | Sperm: 46; Egg: 46; Zygote: 23 |
| Answer» D. Sperm: 46; Egg: 46; Zygote: 23 | |
| 5. |
At what stage of development is the sex of the human baby determined? |
| A. | Zygote |
| B. | Embryo |
| C. | Fetus |
| D. | Puberty |
| Answer» B. Embryo | |
| 6. |
The fusion of haploid sperm and egg nuclei during fertilization leads to formation of a __________ |
| A. | haploid zygote |
| B. | diploid zygote |
| C. | haploid embryo |
| D. | diploid embryo |
| Answer» C. haploid embryo | |
| 7. |
The haploid ovum is also called as _____________ |
| A. | oogonium |
| B. | oocyte |
| C. | ootid |
| D. | osteoid |
| Answer» D. osteoid | |
| 8. |
What triggers the completion of meiosis of secondary oocyte? |
| A. | Maturation of Graafian follicle |
| B. | Entry of sperm into the egg cell |
| C. | Release of estrogen |
| D. | Coitus |
| Answer» C. Release of estrogen | |
| 9. |
What layer of egg cell prevents entry of other sperms? |
| A. | Corpus luteum |
| B. | Zona pellucida |
| C. | Endometrium |
| D. | Corona radiata |
| Answer» C. Endometrium | |
| 10. |
What is fertilization? |
| A. | Release of egg from ovary |
| B. | Release of sperm from testis |
| C. | Mixing of semen with vaginal fluid |
| D. | Fusion of sperm with egg nuclei |
| Answer» E. | |
| 11. |
During a menstrual cycle, copulation on which of the following phases has the least probability of fertilizing an egg? |
| A. | Menstrual phase |
| B. | Onset of follicular phase |
| C. | End of the follicular phase |
| D. | End of the luteal phase |
| Answer» D. End of the luteal phase | |
| 12. |
What part of the oviduct does the sperm encounter the egg? |
| A. | Ampulla |
| B. | Isthmus |
| C. | Infundibulum |
| D. | Fundus |
| Answer» B. Isthmus | |
| 13. |
The number of semen delivered by a male determines the number of babies the female can conceive. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
What is the correct order of travel of sperm through the female reproductive tract before it reaches the egg? |
| A. | Vagina -> Fallopian tube -> Uterus -> Cervix |
| B. | Vagina -> Cervix -> Uterus -> Oviduct |
| C. | Vagina -> Uterus -> Cervix -> Oviduct |
| D. | Vagina -> Fallopian tube -> Cervix -> Uterus |
| Answer» C. Vagina -> Uterus -> Cervix -> Oviduct | |
| 15. |
The population of vagina with semen during coitus is called as _______ |
| A. | Insemination |
| B. | Outsemination |
| C. | Copulation |
| D. | Fertilization |
| Answer» B. Outsemination | |