AGB Basics Quiz

1.  The science that deals with chromosomes are: (UK VO – 2024)

2. Which of the following statements are true:   (JKPSC 2019)

1) Maximum diameter of chromosome was observed in anaphase

2) The chromosome pairing occurs between homologous chromosomes

3) The centromere divide chromosome into five equal halves

4) Each chromosome has definite place in interphase

Choose the correct answer:

3. Match the following Species of animals with their Chromosomes (2n)  (JKPSC 2019)

Species                     Chromosomes (2n)

(a) Domestic cattle     (1) 60

(b) Domestic river buffalo   (2) 54

(c) Domestic sheep   (3) 38 

(d) Domestic swine  (4) 50

Select the correct answer using the code below:

4. During which phase of mitotic cell division, the nuclear membrane and nucleolus disappear? (MPPSC 2013)

5. Crossing over takes place between:    (MPPSC 2022)

6. During karyokinesis the chromosome exhibit minimum coiling at which phase? (MPPSC 2022)

7. The stage of cell division in which the chromosomes are most discrete and arranged in an equatorial plate?

8. What is the diploid chromosome number in a river buffalo (Bubalus bubalis)?

9. Which phase of the cell cycle is characterized by DNA replication?

10. Which structure is responsible for the separation of sister chromatids during mitosis?

11. Which phase of the cell cycle is known for rapid cell growth and preparation for mitosis?

12. What is the role of the synaptonemal complex during meiosis?

13. During which stage of prophase I does crossing over occur?

14. What is the primary purpose of mitosis?

15. What is the key event during anaphase of mitosis?

16. Which process during meiosis contributes to genetic variation?

17. What is the structure formed by the pairing of homologous chromosomes during meiosis called?

18. Which phase of meiosis involves the separation of sister chromatids?

19. What is the role of the synaptonemal complex during meiosis?

20. What is the key difference between Meiosis I and Meiosis II?

21. What is the significance of crossing over during meiosis?