Q. 134.3( 9 Votes )

<span lang="EN-US

Answer :

Variation occurs in the progeny formed through sexual reproduction because in this process both the germ cells are equally involved. Reproduction involves fusion of male and female gametes. So, each time when zygote is formed, it is formed by combining of variants.


(b) (i) The part marked ‘A’ is Pollen grains.


(ii) ‘A’ reach part ‘B’ through the process of pollination. B is stigma of the carpel.


(iii) ‘C’ is pollen tube. It helps in reaching of male gamete to the egg ovule.


(iv) ‘D’ is egg. After fertilization, the egg divides several times and form an embryo within the ovule.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
All GrammarAll GrammarAll Grammar41 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Differentiate betScience Lab Manual

When an insect siLakhmir Singh & Manjit Kaur- Biology

In what ways is fLakhmir Singh & Manjit Kaur- Biology

In a bisexual floLakhmir Singh & Manjit Kaur- Biology