Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

Pollen grains of water-pollinated species have a special characteristic for protection from water. Which is this characteristic?
Asked by Topperlearning User | 11 Jun, 2014, 05:14: PM
answered-by-expert Expert Answer

Pollen grains of water-pollinated species show the presence of mucilaginous covering which offers them protection from water. 

Answered by | 11 Jun, 2014, 07:14: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Biology
A phenomenon where a male insect mistakenly identified the patterns of a orchid flower as the as the female insect partner, and tries to copulate and thereby pollinates the flower is said to be  a. Pseudocopulation b. Pseudopollination c. Pseudoparthenocarpy d. Pseudofertilisation  
Asked by rashmij34 | 19 Mar, 2024, 05:59: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
State any one advantage and disadvantage of pollen grains to humans.
Asked by bhavishnu.in.2006 | 19 Mar, 2023, 07:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
what is callose
Asked by gurjarlaxman0322 | 24 Aug, 2020, 09:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
why are night blooming flowers generally white in colour?
Asked by sunkavalli123456 | 20 Jul, 2020, 10:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
where is sporopollenin present in plants? state its significance with reference to its chemical nature.
Asked by jahnavisharma15807 | 09 Dec, 2018, 08:49: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Explain how self pollination is favoured in cleistogamous flower
Asked by collinkalayilroy | 14 Oct, 2018, 05:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
mention two strategies evolved to prevent self pollination?  
Asked by rakeshraghav33 | 24 Aug, 2018, 07:14: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Assertion :- In sun-flower family petals are modified in to pappus. Reason :- Pappus helps in dispersal of flower.
Asked by minipkda | 21 May, 2018, 10:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
  what is callose?is callose present around the generative nucleus in microspore?
Asked by Atul Singh | 21 Apr, 2018, 12:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
pollen grains are haploid k but y  
Asked by aipatil1973 | 17 Mar, 2018, 09:23: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×