It shows chemotactic movement

It shows only tip growth

It is composed of three non-cellular zones

It shows radial cytoplasmic streaming

12, 36, 12

12, 24, 36

12, 12, 36

12, 36, 24

The egg cell attracts the pollen tube as they have dissimilar electric charge

The filiform apparatus of synergids is believed to attract the pollen tube

It has no other passage to follow

It grows under control of nucleus

Callose

Pecto-cellulose

Cellulose

Fat-like sporopollenin

The cells remain in situ

The cells secrete chemicals for degeneration of middle layers

The cells pass in between the middle layers

The cells form plasmodium that passes in between pollen grain mother cells

Ektexine and endexine

Tapetum and endothecium

Exine and intine

Foot and baculate layer

Produce Ubisch bodies

Produce pollen grains

Store and protect pollen grains

All the above

At chalazal region

Middle of nucellus

Laterally near endothelium

Hypodermally in the micropylar region

Apomixis

Embryology

Embryogeny

Cytology

Lignocellulose

Sporopollenin

Pectocellulose

Pectolignin

Nucellus and antipodal cells

Antipodal cells and egg cell

Antipodal cells and megaspore mother cell

Nucellus and primary endosperm nucleus

Spore

Zygote

Immature male gametophyte

Male gamete

Nucellus

Embryo sac

Micropyle

Pollen grain

Juglans

Casuarina

Opuntia

Asphodelus

Callose

Pecto-cellulose

Ligno-cellulose

Sporopollenin

Ill developed nucellus

Partially developed nucellus

Well developed nucellus

No nucellus

$24$

$12$

$8$

$16$

Campylotropous

Amphitropous

Orthotropous

Anatropous

$4$

$8$

$12$

$24$

One - celled stage

$2-3$ celled stage

$3$- celled stage

$4$- celled stage

a-iv, b-i, c-ii, d-v

a-i, b-ii, c-v, d-iv

a-ii, b-v, c-iii, d-i

a-v, b-iv, c-i, d-ii

Cellulose

Pectocellulose

Lignin

Sporopollenin

$36$

$30$

$24$

$12$

Oospore

Carpel

Egg

Pollen grain

Palynology

Palaeontology

Palaeobotany

None of the above

Orthotropous

Anatropous

Campylotropous

Amphitropous

Microsporangium

Pollen sac

Female gametophyte

Pollen grains

Some reptiles have also been reported as pollinators in some plant species

Pollen grains of many species can germinate on the stigma of a flower but only one pollen tube of the same species grows into the style

Insects that consume pollen or nectar without brining about pollination are called pollen/ nectar robbers

Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of pistil

Exine of pollen grain - Sporopollenin

Tapetum - Ubisch bodies

Male gametophyte pf angiosperms - No prothalial cells

Most common type of ovule - Orthotropous

$6$

$12$

$24$

$3$

$14$

$21$

$7$

$28$

The egg

One of the synergids

The central cell

One of the antipodal cells

Integument

Nucellus

Chalaza

Micropyle

A-Central cell, G-Egg nucleus

C-Plamsa membrane, D-Vegetative nucleus

B-Egg nucleus, F-Male gametes

B-Central cell, E-Filiform apparatus

Nucellus-n, MMC-$2$n, Functional megaspore-$2$n

Nucellus-$2$n, MMC-n, Fundamental megaspore-n

Nucellus-$2$n, MMC-$2$n, Functional megaspore-n

Nucellus-n, MMC-$2$n, Functional megaspore-n

(i) and (ii) are correct but (iii) and (iv) are incorrect

(i), (ii) and (iv) are correct but (iii) is incorrect

(ii), (iii) and (iv) are correct but (i) is incorrect

(i) and (iv) are correct but (ii) and (iii) are incorrect

$500$

$125$

$250$

$1000$

egg

pollen grain

male gamete

none of the above

Hypostase

Epistase

Endothelium

Arillode