Biology Practice: Reproduction in Humans (Mock Test 4 - Expert/Experimental)
1. In a laboratory analysis, a sperm sample shows normal counts but zero forward progression. Microscopic examination reveals a lack of mitochondria. Which part is defective?
2. A clinical study involves a patient with a bilateral tubal blockage (both Fallopian tubes). Which process is physically prevented?
3. An investigator notes a zygote has failed to divide into a multicellular blastocyst. Which biological process has failed?
4. Why does the 'Corpus Luteum' persist in the ovary if fertilization is successful?
5. In 'In-Vitro Fertilization' (IVF), at which developmental stage is the embryo typically transferred to the uterus?
6. A medical scan shows 'Placenta Previa' (placenta covering the cervix). Why is this a complication for birth?
7. A basal body temperature (BBT) chart shows a slight rise (0.5°C) mid-cycle. This is an experimental indicator of:
8. In an 'Ectopic Pregnancy', the embryo most commonly fails to reach the uterus and implants in the:
9. Pregnancy test kits detect the 'HCG' hormone in urine. This hormone is primarily produced by:
10. Twins are observed to have different genders and different blood groups. This experimental data proves they are:
11. The 'Acrosome reaction' is essential for a sperm to:
12. Which hormone causes powerful uterine contractions during parturition?
13. 'Lactation' is triggered by Prolactin, but 'Milk Ejection' is caused by:
14. The 'Amniotic Fluid' serves as a ________ for the foetus.
15. What is the fate of the Polar Bodies formed during Oogenesis?
16. The surgical removal of a small part of the Fallopian tubes is:
17. Which chromosome determines the sex of the child from the father's side?
18. The 'Placenta' allows the exchange of materials but prevents ________ from mixing.
19. In a 28-day cycle, the 'LH Surge' typically occurs on Day:
20. The temporary endocrine structure formed from a ruptured follicle is: