Fertilization in Plants

Identify the correct option with which the part shown in the diagram below can be associated:

The generative cell is destroyed by laser but a normal pollen tube is still formed because

Double fertilization and triple fusion were discovered by

Total number of meiotic divisions required for forming 100 zygotes/100 grains of wheat is

Entry of pollen tube through micropyle is

Which cell of the female gametophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization ?

The additional nuclear ploidy levels found in a diploid angiosperm species in full bloom compared to its vegetative stage are

Papaya is a dioecious species with XY sexual genotype for male and XX for female. What will be the genotype of the embryos and endosperm nuclei after double fertilisation?

An angiosperm was identified with its endosperm of $6\mathrm{n}$. Assuming that this is a self-pollinating species, which one of the following is the correct ploidy of the parent?

Fill up the blanks with suitable words

The ability of the pistil to recognise pollen is dependent on ______ components and ________ guide the entry of pollentube. This study leads to help ______ in getting _________ even in _____ 

A Chemicals

B. Plant breeders

C. hybrids

D. Incompatible pollination

E. Synergids

Mesogamy is the entry of pollen tube into the ovule through

Fertilization in angiosperm is ______

Number of gametes participates in triple fusion, and double fertilisation respectively are

Which of the following scientists is credited with the discovery of double fertilisation in Fritillaria and Lilium?

Choose the option with the correctly labelled parts in the given diagram below.

Which of the following is incorrect about double fertilization?

In which of the following pollen tube enters through chalaza?

From where do the endosperm of the angiospermic seed develops? 

Read the following statements about sexual reproduction in angiosperms. How many of them are correct?

a. The number of middle layers in anther generally vary from 1-6
b. The pollen tube many enter the ovule from micropyle, chalaza or funiculus
c. Each ovule contains 8 nucleate, haploid embryosac after mitotic divisions in megaspore mother cell
d. If pollen grain of a flower falls on the stigma of another flower on the same plant, it may be referred to as self-pollination
e. Insects are often attracted by the odour of flowers rather than colour
f. Outcrossing increases genetic variability