Reproduction in Angiosperms Questions: Paper - 01

Tapetum is present between

(A) Epidermis and endothecium

(B) Endothecium and middle layers

(C) Epidermis and middle layers

(D) Middle layers and sporoangenous tissue

Answer: (D)

Monocot pollengrains are generally

(A) Monocoplate

(B) Bicolpate

(C) Tricolpate

(D) Multicolpate

Answer: (A)

Exine of pollen-grain is made up of

(A) Sporopollenin

(B) Cellulo-pectin

(C) Callose

(D) Cellulose

Answer: (A)

Ovule is

(A) Megasporangium

(B) Microsporangium

(C) Integumented megasporangium

(D) Megaspore

Answer: (C)

The tenuinucellate ovule has

(A) Small amount of nucellus

(B) Large amount of nucellus

(C) Chalazal nucellus

(D) MIcropyle nucllus

Answer: (A)

The point at which funicle is attached to body of ovule

(A) Raphe

(B) Hilum

(C) Endothelium

(D) Chalaza

Answer: (B)

A typical angiospermic embryo sac is susally

(A) One celled

(B) Two celled

(C) Three celled

(D) Seven celled

Answer: (D)

Continued self poll ination results in

(A) Better progeny

(B) Weak progeny

(C) New varieties

(D) Both (A) and (C)

Answer: (B)

Cleistogamous flowers are always

(A) Insect pollinated

(B) Wind pollinated

(C) Cross pollinated

(D)    Self pollinated

Answer: (D)

In angiosperms pollination is always

(A) Direct

(B) Indirect

(C) Both A and B

(D) None of these

Answer: (B)

Entomopjilous flowers are with

(A) Dry and smooth pollen

(B) Sticky and rough pollen

(C) Less numbers of pollens

(D) Brightly coloured pollens

Answer: (B)

Flowers are small and unattractive in

(A) Entomophily

(B) Ornithophily

(C) Anemophily

(D) All of these

Answer: (C)

When birds are agents, the pollination is

(A) Anemophily

(B) Entomophily

(C) Ornithophily

(D) Hydrophily

Answer: (C)

Syngamy refers to

(A) Fusion of one of the sperm with synergid

(B) Fusion of one male gamete with female gamete

(C) Fusion of male gamete with secondary nucleus

(D) Fusion of one male gamete with egg and other male gamete with secondary nucleus

Answer: (B)

Endosperm is generally

(A) Haploid

(B) Diploid

(C) Triploid

(D) Polyploid

Answer: (C)

Free nuclear divisions occurs in

(A) Cellular endosperm

(B) Nuclear endosperm

(C) Helobial endosperm

(D) Both (B) and (C)

Answer: (D)

Suspensor formed during development of dicot embryo is

(A) 2-3 celled

(B) 3-4 celled

(C) 5-6 celled

(D) 6-10 celled

Answer: (D)

The first cell of suspensor towards micropyle which absorbs food material is

(A) Hypophysis

(B) Haustoria

(C) Radicle

(D) Transverse cell

Answer: (B)

Helobial type of endosperm is seen in

(A) Asphodelus

(B) Common in order Helobiales

(C) Petunia

(D) Both (A) and (B)

Answer: (D)

In monocot seeds, radicle is covered by a protective covering called

(A) Coleoptile

(B) Coleorrhiza

(C) Scutellum

(D) Aleurone layer

Answer: (B)

Embryo axis is also called as

(A) Tegman

(B) Tiller

(C) Tigellum

(D) Scutellum

Answer: (C)

The first node indicates point of attachment of  ----- to embryo axis

(A) Plumule

(B) Radicle

(C) Cotyledons

(D) All of the above

Answer: (C)

______ during embryo development push he embryo deeper into the endosperm

(A) Octan

(B) Suspensor

(C) Tegellum

(D) Scutellum

Answer: (B)

Suspensor is a component of

(A) Germinating seed

(B) Developing embryo

(C) Mature embryo

(D) Endosperm

Answer: (B)

The type of seed in which endosperm is completely utilized by developing embryo

(A) Endospermic seed

(B) Non endospermic sees

(C) Albuminous seed

(D) None of these

Answer: (B)