Question

Which one of the following is INCORRECT about non-recurrent apomixis?

• A. Megaspore mother cells undergo meiotic division.
• B. A haploid embryo sac is formed.
• C. The embryo arises from the egg by parthenogenesis.
• D. The newly formed plants reproduce sexually and form seeds.

Hint:

Non-recurrent apomixis gives haploid plants. Think about whether such plants can set seeds sexually.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept
In non-recurrent apomixis, the megaspore mother cell undergoes normal meiosis, so the embryo sac is haploid.

Step 2: Embryo formation
The embryo develops from the haploid egg without fertilisation (haploid parthenogenesis) or from another haploid cell (apogamy).

Step 3: Check the last statement
The plants formed are haploid and are therefore generally sterile. They cannot reproduce sexually or set seeds, so the statement that they form seeds is wrong.

Final Answer:
The statement that the new plants reproduce sexually and form seeds is incorrect. \[ \boxed{\text{(D) }\text{The newly formed plants reproduce sexually and form seeds.}} \]