Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Winged pollen grains are present inOption: 1 MangoOption: 2 Cycas<div class='

Winged pollen grains are present in

Option: 1

Mango


Option: 2

Cycas


Option: 3

Mustard


Option: 4

Pinus


Answers (1)

best_answer

 

 

Reproduction in gymnosperms -

 

  • Microspores include male gametophyte which produces only two male gametes or sperm. 
  • The pollen grains or microspores are liberated at more than 2-celled stage from microsporangium. 
  • Water is not required for transport of male gamete. A pollen tube is formed that delivers male gametes to archegonia. 
  • Fertilization produces a zygote which later turns into an embryo.
  • Endosperm in gymnosperms is formed before fertilization. It represents the haploid female gametophyte generation.
  • The seeds are naked i.e. they are not formed inside fruit as in angiosperms. 
     

-

 

 

 

Pinus has winged pollen grains.

Posted by

Sayak

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

'NEET 2025 in dark': MP High Court orders re-test for Indore, Ujjain students; MCC counselling delayed
anam-khan

Punjab’s new 2-year MBBS bond, fee hike ‘exploitation’, ‘unfair’; interns, doctors shut OPDs in protest
anam-khan

NEET UG 2025 counselling likely to begin on July 1; AIQ seat allocation, court hearing updates

Latest Question