NEET INTRODUCTORY TEST SERIES 6 BIOLOGY

1. Match column I with column II and select the correct option from the given codes.


A) (a) – (ii), (b) – (iii), (c) – (i), (d)-(iv)
B) (a) – (ii), (b) – (iii), (c) – (iv), (d) – (i)
C) (a) – (iii), (b) – (ii), (c) – (i), (d) – (iv)
D) (a) – (iii), (b) – (ii), (c) – (iv), (d) – (i)

2.  Assertion: During mitotic anaphase, centromere of each chromosome splits and chromatids separate.
       Reason: During anaphase, chromatids move to opposite poles.

a) Both assertion and reason are true and reason is the correct explanation of assertion.
b) Both assertion and reason are true but reason is not the correct explanation of assertion.
c) Assertion is true but reason is false.
d) Both assertion and reason are false.

3. Identify the given mitotic phases of cell cycle


A) (a)-Anaphase, (b)-Metaphase, (c)-Telophase, (d)-Prophase
B) (a)-Anaphase, (b)-Metaphase, (c)-Prophase, (d)-Telophase
C) (a)-Telophase, (b)-Metaphase, (c)-Prophase, (d)-Anaphase
D) (a)-Metaphase, (b)-Prophase, (c)-Telophase, (d)-Anaphase

4. When a cell has a stalled DNA replication fork, which checkpoint should be predominantly activated?

(a) G₂/M
(b) G₁/M
(c)G₁/S
(d)M/G₁

5. During which phase(s) of the cell cycle, the amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?

(a)G₂ and M
(b)Only G₂
(c)G₁ and S
(d)G₀ and G₁

6. _________________is the best stage to observe the shape, size, and number of chromosomes

(a) Prophase   
(b) Metaphase
(c) Anaphase
(d) Telophase

7. In which of the following stages, a chromosome is minimum coiled?

(a) Metaphase
(b) Anaphase
(c) Interphase
(d) Telophase

8. Read the given statements and select the correct option.
Statement I: At the end of prophase, cell do not show Golgi complexes, endoplasmic reticulum and nucleolus.
Statement II: The complete disintegration of nuclear envelope marks the end of first phase of mitosis.

a) Both statements I and II are correct.
b) Statement I is correct but Statement II is incorrect.
c) Statement I is incorrect but statement II is correct.
d) Both statements I and II are incorrect.

9. How many mitotic divisions must have a cell undergo to produce 32 cells?

(a) 32
(b) 16
(c) 5
(d) 10

10. Syncytium formation occurs if

a) No karyokinesis takes place
b) Both karyokinesis and cytokinesis are prevented
c) Cytokinesis is not followed by karyokinesis
d) Karyokinesis is not followed by cytokinesis

11. Spindle fibres attach to kinetochores of chromosomes in

(a) prophase
(b) telophase
(c) anaphase
(d) metaphase.

12. As the prophase comes to an end, which of the following can be seen in the cell?

a) Nucleolus
b) Formation of spindle fibres
c) ER and Golgi complex
d) Nuclear membrane

13. Mitosis occurs in

a) haploid individuals
b) diploid individuals
c) both (A) and (B)
d) in bacteria only.

14. Identify the correct statement with regard to G₁ phase (Gap 1) of interphase.

a) DNA synthesis or replication takes place.
b) Reorganisation of all cellular components takes place.
c) Cell is metabolically active, grows but does not replicate its DNA.
d) Nuclear division takes place.

15. Some dividing cells exit the cell cycle and enter vegetative inactive stage. This process occurs at the end of

(a) M phase
(b) G₁ phase
(c) S phase
(d) G₂ phase.

16. The correct sequence of phases of cell cycle is

(a) G₁ S G₂ M
(b) M  G₁ G₂ S
(c) G₁  G₂ S M
(d) S G₁ G₂ M

17. There are 14 chromosomes in each cell and 2C DNA after M-phase in a plant. Find out the correct match in the following table.


A) (a) and (c) are correct.
B) (a) and (b) are correct.
C) (a), (c) and (d) are correct.
D) (b), (c) and (d) are correct

18. In cell cycle, during which phase chromosomes are arranged in equatorial plate?

(a) Telophase
(b) Metaphase
(c) Anaphase
(d) Prophase

19. Given below is a schematic break-up of the phases or stages of cell cycle. Which one of the following is the correct indication of the stage/phase in the cell cycle?

a) C-karyokinesis
b) D- synthetic phase
c) A- cytokinesis
d) B- metaphase

20. During cell division in apical meristem, the nuclear membrane reappears in

(a) telophase
(b) prophase
(c) metaphase
(d) anaphase.