Question

The chromosome number of foot of fern embryo is 6, the chromosome number of its leaf will be

• A. 6
• B. 12
• C. 18
• D. 3

Answer 1

Answer: (A)

6

The number of chromosomes of the leaf will be the same as in the embryo. The vascular parts of the plant develop from the embryo itself, which is a diploid structure in case of ferns. The leaves, which eventually develop from the embryo will have the same number of chromosomes as the embryo itself. Therefore, the answer is 6.