A : Tetraploid gametophyte can be produced fr | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Apogamy is the development of a sporophyte directly from the gametophyte cells without the fusion of gametes (fertilization). Since the sporophyte

Vedclass · Accepted Answer

Both Assertion and Reason are incorrect.

Vedclass · Answer

(D) Apogamy is the development of a sporophyte directly from the gametophyte cells without the fusion of gametes (fertilization). Since the sporophyte is formed directly from the gametophyte tissue,it retains the ploidy level of the gametophyte. Therefore,a tetraploid gametophyte would produce a tetraploid sporophyte,not the other way around. Thus,the Assertion is incorrect. Reasoning: Apogamy is a type of apomixis where the sporophyte develops without fertilization. Since fertilization is absent,the Reason statement is also incorrect because it implies apogamy involves fertilization.

$A$ : Tetraploid gametophyte can be produced from tetraploid sporophyte by means of apogamy. $R$ : Apogamy involves fertilisation,not meiosis.

Similar Questions

Apomixis is .....

The presence of more than one embryo in a seed is known as:

In $Citrus$,adventive polyembryony arises due to the development of embryos from:

The condition where more than four spores are produced from a spore mother cell is known as:

In some plants,the female gamete develops into an embryo without fertilization. This phenomenon is known as:

Vedclass Test Series

Exam Paper Generator

Online Exam Module