MEDIUM
Earn 100

Double fertilisation means

50% studentsanswered this correctly

Important Questions on Sexual Reproduction in Flowering Plants

EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Function of filiform apparatus is to:
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Define the term pollination. Differentiate between self-pollination and cross-pollination. What is the significance of pollination?
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
A flower with Tt genotype is cross - pollinated by TT pollens. What will the genotypes of the resulting endosperm and embryo, respectively, be?
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
An angiosperm was identified with its endosperm of 6n. Assuming that this is a self-pollinating species, which one of the following is the correct ploidy of the parent?
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization

Write the function of the following part in the human female reproductive system:

Oviduct

HARD
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
An apple showing monosporic type of embryo sac development assumed to develop a fruit with 12 seeds. Find out the no. of chromosomes present in megaspore mother cell, functional megaspores, egg cells, synergids, antipodals, zygote and PEN
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Double fertilization is exhibited by:
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Angiospermic plants are characterised by
(i) Double fertilisation
(ii) Triploid endosperm
(iii) Diploid endosperm
Choose the correct option from the following regarding above statements?
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization

Write the function of the following part in the human female reproductive system:

Uterus

MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
What is carpel? Write the function of its various parts.
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
The additional nuclear ploidy levels found in a diploid angiosperm species in full bloom compared to its vegetative stage are
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Describe in brief the structure and function of placenta.
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
In angiosperms, the development of male gametophyte takes place from ___________.
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Union of Pronuclei of the gametes is called ___.
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Which cell of the female gametophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization ?
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Describe the process of double fertilisation in angiosperms. What is its significance?
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Amphimixis is:
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
List in proper sequence four steps of obtaining germinating dicot seeds.
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization

Write the function of the following part in the human female reproductive system.

Ovary

MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Write one main difference between the asexual and sexual modes of reproduction. Which species is likely to have comparatively better chances of survival - the one reproducing asexually or the one reproducing sexually? Give a reason to justify your answer.