Quiz 5. Sexual Reproduction in Flowering Plants

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It includes Megasporogenesis, Female Gametophyte (Embryo Sac)

Name *

1 point

What is meant by monosporic development of embryo sac ? *

1 point

Embryo sac is developed from single megaspore mother cell

Embryo sac is developed from single functional megaspore

Embryo sac is developed from single secondary nucleus

Embryo sac is developed from single Female gametophyte

Meiosis in megaspore mother cell result in the production of *

1 point

4 - Embryo sacs

2 - Antipodal cell, 2 synergids cells

4 - Megaspores

2 - Secondary nucleus

In gynoecium, placenta is located inside the *

1 point

Ovule

Locule

Ovary wall

Style

The process of formation of megaspores from the megaspore mother cell is called ......
*

1 point

Microsporogenesis

Macrosporogenesis

Megasporogenesis

Gametogenesis

In angiosperm, functional megaspore develops into ....... *

1 point

Ovule

Nucellus

Embryo sac

Embryo

In angiosperm, a typical embryo sac is *

1 point

6 Nucleated, 7 celled

6 Nucleated, 8 celled

8 Nucleated, 7 celled

8 Nucleated, 8 celled

Filiform apparatus is characteristic feature of *

1 point

Vegetative cell

Generative cell

Embryo sac

Synergids

In a majority of flowering plants, what happened after miosis in megaspore mother cell ?
*

1 point

All megaspore develops into antipodal and synergids cells

One megaspore is functional and other three degenerates

Three megaspore become functional and other one degenerates

All four megaspore develops into embryo sac

Match both column *

4 points

Secondary nucleus

Pollen grain

Pollen sac

Anther

Ovule

Embryo sac

Female gametophyte

Male gametophyte

Megasporangium

Microsporangium

Which of these cells are haploid ?

Functional megaspore, female gametophyte, nucellus, MMC, egg, antipodal cell, synergids

1 point

MMC, egg, antipodal cell

Functional megaspore, female gametophyte, egg, antipodal, synergids

Functional megaspore, female gametophyte, egg, nucellus, synergids

Functional megaspore, female gametophyte, egg

Which of the following is not a feature of pistil ? *

1 point

Monosporic

Apocarpous

Syncarpous

Monocarpellary

The nucleus of functional megaspore develops into 8 nucleate stage of embryo sac after ...... *

1 point

2 meiotic divisions

3 mitotic divisions

Total 7 mitotic divisions

Total 8 mitotic divisions

Nucleus of functional megaspore divide mitotically to form 8 nucleate stage. This mitosis is strictly ..... *

1 point

Free cellular

Free nuclear

Nuclear and cellular both

Free halobial type

Megaspore mother cell differentiates from *

1 point

Nucellus in the chalaza region

Inner integument region

Secondary nucleus

Nucellus in the micropylar region

Which cell undergo meiotic division *

1 point

Secondary nucleus

Megaspore mother cell, MMC

Antipodal cell

Female gametophyte

In embryo sac egg apparatus consists of .... *

1 point

One Egg cell, and two synergids towards micropylar end

One Egg cell, and two antipodal cells towards chalaza end

One Egg cell, and three synergids towards micropylar end

Three synergids and one antipdal cell towards chalaza end

The synergids have special cellular thickenings at the
micropylar tip called .........
*

1 point

Annular thickenings

Egg apparatus

Filiform apparatus

Bordered thickening

Filiform apparatus play role in *

1 point

Fertilisation of egg with male gamete

Guiding of pollen tube into synergids

Guiding of pollen tube into egg cell

Guiding of pollen tube into antipodal cell

The gynoecium consists of many free pistil (apocarpous) in the flower of *

1 point

Papaver

Mustard

Michelia

Mango

Select incorrect statement regarding megaspore mother cell (MMC) *

1 point

It is large cell

Cytoplasm is dense

Have prominent nucleus

Have more than one nucleus

Find incorrect statement *

1 point

Three cells are at the chalazal end and are called the antipodals

The nucleus of the functional megaspore divides mitotically to form two nuclei which move to the opposite poles

The MMC undergoes meiotic division

Hilum represents the junction between ovule and funicle

All are correct

Identify this figure and find incorrect statement *

1 point

A is haploid structure

Polar nuclei give rise to endosperm development

B help in pollen tube entry

A will give rise to zygote

All are correct

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