Question

Arrange the following in the ascending order based on their chromosome number (i) Primary endosperm cell of Maize (ii) Meristematic cell of Apple (iii) Xylem parenchyma cell of Potato (iv) Aleurone layer cell of Rice

• A. iv, i, ii, iii
• B. iii, iv, i, ii
• C. i, ii, iv, iii
• D. ii, iii, i, iv

Answer 1

The correct option is C i, ii, iv, iii

Primary endosperm cell of maize is a triploid as it is formed by the double fertilization. So, the number of chromosomes is 3n = 30.

Meristimatic cell of apple is diploid. So, the number of chromosomes is 2n = 34.

Aleurone layer cell of rice is triploid. So, the number of chromosome is 3n = 36.

Xylem parenchyma cell of potato is 2n = 48.

So, the correct answer is option C.