Question

Chromosomes:
(i) carry hereditary information from parents to the next generation.
(ii) are thread like structures located inside the nucleus of an animal cell.
(iii) always exist in pairs in human reproductive cells.
(iv) are involved in the process of cell division.
The correct statements are:

• A. (i) and (ii)
• B. (iii) and (iv)
• C. (i), (ii) and (iv)
• D. (i) and (iv)

Answer 1

The Correct Option is C

Step 1: Understanding the function of chromosomes:
Chromosomes are thread-like structures composed of DNA that carry genetic information from one generation to the next.
They are found inside the nucleus of eukaryotic cells and play a crucial role in inheritance and cell division.

Step 2: Analyzing the given statements:
(i) Chromosomes carry hereditary information from parents to the next generation:
This statement is correct. Chromosomes contain genes that pass genetic information from one generation to the next during reproduction.

(ii) Chromosomes are thread-like structures located inside the nucleus of an animal cell:
This statement is also correct. Chromosomes are present inside the nucleus of both plant and animal cells and appear thread-like when viewed under a microscope during cell division.

(iii) Chromosomes always exist in pairs in human reproductive cells:
This statement is incorrect. Human reproductive cells (gametes) contain a single set of chromosomes (haploid), whereas somatic (body) cells contain pairs of chromosomes (diploid).

(iv) Chromosomes are involved in the process of cell division:
This statement is correct. Chromosomes play a crucial role in cell division, ensuring that genetic material is accurately distributed to daughter cells during mitosis and meiosis.

Conclusion:
The correct statements are (i), (ii), and (iv). Therefore, the correct answer is (i), (ii) and (iv).