Reproduction and Development (12 Biology)
Study sexual and asexual reproduction, gametogenesis, embryonic development, and reproductive health in humans.
TL;DR: Study sexual and asexual reproduction, gametogenesis, embryonic development, and reproductive health in humans.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
Study sexual and asexual reproduction, gametogenesis, embryonic development, and reproductive health in humans.
Reproduction and Development MCQs with Answers & Explanations
Q1. What is reproduction?
- Growth of organisms
- Process of producing new organisms ✓ (correct)
- Feeding process
- Respiration
Q2. What is the main advantage of sexual reproduction over asexual reproduction?
- Faster reproduction
- Genetic variation and better adaptation ✓ (correct)
- Less energy required
- Simpler process
Q3. What is gametogenesis?
- Formation of zygote
- Formation of gametes through meiosis ✓ (correct)
- Formation of embryo
- Growth of organism
Q4. How many chromosomes does a human ovum contain?
- 46
- 23 ✓ (correct)
- 92
- 24
Q5. What is the function of the fallopian tube?
- Hormone production
- Transport of ovum and site of fertilization ✓ (correct)
- Fetal development
- Hormone storage
Q6. What is implantation?
- Formation of embryo
- Embedding of blastocyst in uterine wall ✓ (correct)
- Development of placenta
- Formation of zygote
Q7. What is the function of the placenta?
- Produce hormones only
- Exchange of materials between fetus and mother ✓ (correct)
- Protect fetus from infection only
- Store nutrients
Q8. How long is the human gestation period?
- 6 months
- 9 months (approximately 280 days) ✓ (correct)
- 12 months
- 3 months
Q9. What is the secondary sex ratio at birth?
- 1:1 male to female
- More females than males
- More males than females ✓ (correct)
- Variable
Q10. What is the role of the corpus luteum?
- Produce eggs
- Produce progesterone to maintain pregnancy ✓ (correct)
- Release eggs
- Store sperm
Frequently Asked Questions
What is the difference between mitosis and meiosis in reproduction?
Mitosis produces two identical diploid cells for growth and repair. Meiosis produces four genetically different haploid gametes for sexual reproduction.
What is infertility and its common causes?
Infertility is inability to conceive after one year of unprotected sex. Causes include hormonal imbalances, reproductive anatomy problems, infections, and genetic factors.
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