Question

Question No. 18
In Melandrium album -
Answer
A. Presence of Y chromosome confirms
the male characters in the plant.
B. Presence of Y chromosome confirms
the female characters in the plant.
C. Presence of X chromosome confirms
the male characters in the plant.
D. Presence of X & Y chromosome
confirms the female characters in the plant.​

Answer 1

Answer:

A. Presence of Y chromosome confirms

the male characters in the plant.

Explanation:

In Melandrium album, Y chromosome plays a crucial role in sex determination!

Y chromosome contains male determining genes and female suppressing genes.

presence of both genes are necessary for maturity.

Answer 2

In Melandrium album (white campion), presence of Y chromosome confirms the male characters of the plant (option A).

• White campion is a dioecious (separate sexes) flowering plant that is a part of the family Caryophyllaceae. They have X and Y sex chromosomes, similar to humans.
• The Y chromosome contains the male sex determining genes and the female suppressing genes, which are required for the healthy growth of anthers and other male characters in the flowers.
• Different segments of the Y chromosome have their own specific functions like suppressing female characters, development of anthers, dehiscence, etc.