Medical Quiz

Embryology Quiz


Which among the following is not an adaptation of anemophilous flowers

A. Flowers are small

B. Numerous male flowers

C. Flowers are showy

D. Pollen grains small and light

The sporophyte stage is

A. haploid

B. diploid

A plant with nuclear endosperm

A. Annona

B. Crotalaria

C. Adoxa

D. Coconut

In simultaneous type of microsporogenesis

A. Each nuclear division is followed by cell wall formation

B. Nuclear divisions are immediately followed by cell plate formation

C. The cell is divided into two equal halves

D. The dyad nuclei lie in the common cytoplasm

If the compatibility reaction of pollen is determined by the genotype of the plant on which it is produced, it is..

A. Gametophytic self incompatibility

B. Sporophytic incompatibility

Becomes the fruit

A flower structure that encloses and protects ovules and seeds as they develop.

A. Petal

B. Ovule

C. Stigma

D. Ovary

The entry of pollen tube into the ovule through the integuments is called

A. Mesogamy

B. Porogamy

C. Chalazogamy

D. Hypogamy

Supports the stigma, serves as passageway for pollen

A. Anther

B. Style

C. Stem

D. Ovule

The cells lying at the chalazal end of embryosac

A. Egg

B. Synergids

C. Antipodals

D. Central cell

During germination pollen tube comes out through

A. Exine

B. Intine

C. Callose

D. Germ pore

The transfer of pollen grains from the anther of a flower to the stigma of different flowers of the same plant.

A. Autogamy

B. Xenogamy

C. Geitonogamy

D. Cross pollination

Campylotropous ovule is

A. Straight and upright

B. Body bends 180 degree and Inverted

C. Horse shoe shaped

D. Body slightly curved and right angles to the funiculus

The primary endosperm nucleus in angiosperms are

A. Haploid

B. Diploid

C. Triploid

D. Polyploid

The single cotyledon of a monocot embryo

A. Scutellum

B. Coleoptile

C. Coleorrhiza

D. Epiblast

Leaflike parts that cover and protect the flower bud

A. Ovary

B. Sepals

C. Style

D. Pollen

Amoeboid tapetum is also known as

A. Invasive tapetum

B. Glandular tapetum

C. Parietal tapetum

D. Secretory tapetum

Myrmecophily is pollination by

A. Ants

B. Bats

C. Birds

D. Snails

Dehiscence and liberation of anther through a pore covered by a flap of tissue

A. Porous

B. Valvular

C. Transverse

D. Longitudnal

Ruminate endosperm occurs in

A. Annonaceae

B. Cruciferae

C. Euphorbiaceae

D. Asteraceae

Cohesive mass of pollen grains held together by a common sticky substance.

A. Callose

B. Pollinium

C. Compound pollen grain

D. Sporopollenin

The stalk of the ovule

A. Funicle

B. Integument

C. Hilum

D. Nucellus

Which among the following is not a function of Tapetum

A. Transport of nutrients

B. Synthesis of callase

C. Recognition of compatible pistil

D. Growth of pollen tube

Decussate microspore tetrad is

A. All the four spores are in one plane and remain at right angles to one another

B. Out of the two lower spores, only one is visible

C. Four haploid microspores arranged in tetrahedral form

D. All the four spores are present one above the other in a linear manner

The fibrous wall layer of a mature anther

A. Epidermis

B. Endothecium

C. Tapetum

D. Middle layer

Intine is made of

A. Pecto-cellulose

B. Sporopollenin

C. Callose

D. Pollenkitt


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