Medical Quiz

Embryology Quiz


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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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