The normal type of embryo sac is 8-nucleated and

(1) 8-celled

(2) 7-celled

(3) 6-celled

(4) 5-celled

The pollination of two flowers on different plants is known as

(1) xenogamy

(2) geitonogamy

(3) cleistogamy

(4) dichogamy

Which one of the most common embryo sac in flowering plant?

(1) Monosporic, 8 nucleated and 7 celled

(2) Monosporic, 7 celled and 7 nucleated

(3) Bisporic, 8 nucleated and 7 celled

(4) Bisporic, 7 celled and 8 nucleated

Embryo sac is

(1) megaspore

(2) microgametophyte

(3) female gametophyte

(4) megasporangium

Feathery stigma belongs to

(1) wheat

(2) pea

(3) Datura

(4) Caesalpinia

A fertilized egg of a plant has 40 chromosomes. The number of chromosomes present in the microspore mother cell is

(1) 20

(2) 40

(3) 60

(4) 80

If a stock has 2n = 48 and scion microspore mother cell has 2n = 24; then root cell and the microspores will have .... chromosomes respectively.

(1) 12, 48

(2) 48, 12

(3) 24, 12

(4) 24, 96

Censar mechanism of seed dispersal is found in

(1) Papaveraceae

(2) Liliaceae

(3) Leguminosae

(4) Rosaceae

When a fern plant is developed from its prothallus without fertilisation? This pehnomenon is an example of

(1) parthenocarpy

(2) apogamy

(3) apospory

(4) organogenesis