Practice Test || Biology Exam Questions 1-10 || KCET 2025 Biology Part

Biology Practice Test || Biology Exam Questions 1-10 || KCET 2025 Biology Part

1. When pollen grains of a flower of a plant pollinate the stigma of flower of another plant, it is called

(1) Autogamy (2) Dichogamy (3) Geitonogamy (4) Xenogamy

2. Fusion of a male gamete with the central cell in the embryo sac of an angiosperm is called ……

(1) Triple fusion (2) Syngamy (3) Apomixis (4) Double fertilization

3. Which of these options is true in the context of the above diagram of pollen grain ?

(Assuming 'A' refers to the larger cell and 'B' to the smaller cell, typical of a mature pollen grain)

(1) ‘A’ is a vegetative cell which gives rise to male gametes and ‘B’ is a generative cell which produces pollen tube (2) ‘A’ is a generative cell which gives rise to pollen tube and ‘B’ is a vegetative cell which form male gametes (3) ‘A’ is a vegetative cell with abundant food reserve and ‘B’ is a generative cell which form male gametes (4) ‘A’ is a generative cell which forms male gametes and ‘B’ is a vegetative cell which produces pollen tube

4. Match the hormone with its site of production :
Hormone                             Site of production
a. hCG and hPL                     i. Ovary
b. Progesterone                      ii. Placenta
c. Androgens                          iii. Corpus luteum
d. Relaxin                               iv. Leydig cells

(1) a-iii, b-I, c-iv, d-ii (2) a-iv, b-i, c-ii, d-iii (3) a-i, b-ii, c-iv, d-iii (4) a-ii, b-iii, c-iv, d-i

5. Choose the correct sequence of sperm transport during ejaculation

(1) Seminiferous tubules→ rete testis → epididymis → vasa efferentia → vas deferens → ejaculatory duct (2) Seminiferous tubules → vasa efferentia → rete testis → epididymis → vas deferens → ejaculatory duct (3) Seminiferous tubules → rete testis → epididymis → vas deferens → vasa efferentia → ejaculatory duct (4) Seminiferous tubules → rete testis → vasa efferentia → epididymis → vas deferens → ejaculatory duct

6. Select the mismatched pair :
(1) First month of pregnancy – Formation of heart
(2) Second month of pregnancy – Movement of foetus
(3) Third month of pregnancy – Formation of most of the major organ systems
(4) Six month of pregnancy – Eye lids separate and eye lashes are found

(1) b (2) c (3) d (4) a

7. Out of the following options, identify which one is NOT a natural method of contraception ?

(1) Implants (2) Lactational amenorrhea (3) Periodic abstinence (4) Coitus interruptus

8. In zygote intrafallopian tube transfer, the embryo upto ………….. stage is transferred into the fallopian tube

(1) 16 blastomeres (2) 8 blastomeres (3) 32 blastomeres (4) 2 blastomeres

9. Read the following statements :
Statement I : MTP is to get rid off wanted pregnancies due to a causal unprotected intercourse or failure of contraceptives used during coitus or rapes
Statement II : MTPs are performed legally by qualified doctors by giving proper medical justification

(1) Statements I and II are incorrect (2) Statement I is correct but Statement II is incorrect (3) Statement I is incorrect but Statement II is correct (4) Statements I and II are correct

10. How many types of gametes will be formed by a parent with genotype ‘AaBbCc’ ?

(1) 4 (2) 8 (3) 12 (4) 6

Your Results: