Question

A microspore develops into male gametophyte in how many of the following plants?
Adiantum, Rose, Selaginella, Pteris, Salvinia, Sequoia, Pinus, Cycas, Cedrus, Psilotum​

Answer 1

A microspore develops into male gametophyte in how many of the following plants?

1. Rose
2. Pteris
3. Cycas
4. Sequoia

Answer 2

The question is incomplete as it does not have the option which are

(1) 5 (2) 7 (3) 3 (4) 10  

Answer:

(2) 7

Explanation:

• The plant kingdom is divided into 5 division of plants: algae, bryophytes, pteridophytes, gymnosperms and angiosperm.
• The heterospory condition which involves the production of two types of spores: the micro and megaspores were evolved in some pteridophytes, all angiosperms and gymnosperms.
• In the given question, the species of pteridophytes which still posses the homosporous condition are: Adiantum, Pteris and Psilotum but Selaginella and Salvinia are heterosporous.
• The rose, sequoia, Pinus, Cycas and Cedrus are heterosporous.

Therefore out of 10, 7 of them will have the heterospory condition.

To learn more:

1. Classification of plant kingdom: https://brainly.in/question/46761

2.  Distinguish between homosporous and heterosporous: https://brainly.in/question/5017042