ICSE XII/MCQ Questions for Class 12 Biology Set 1 Sample Test,Sample questions

Question:
A typical angiospermic embryo sac is usually:

1.One-celled

2. Two-celled

3. Five-celled

4.seven-celled


Question:
After fertilization ovule develops into:

1. Integument

2. Seed

3.Embryo

4. Endosperm


Question:
All of the following structures are found in angiosperms except ?

1.Archegonium

2.Pistil

3.Anther

4.Megagametophyte


Question:
An example of rhizome is

1.Garlic

2.Colocassia

3.Ginger

4.Onion


Question:
An orthrotropous ovule is one in which micropyle and chalaza are :

1. Oblique to funiculus

2. At right angles to funiculus

3. In straight line with funiculus

4.Parallel to funiculus


Question:
Anemophily takes place by:

1.By Bird

2.By Bat

3.By Snail

4. By Wind


Question:
Asexual reproduction in Penicillium fungus usually takes place through?

1. Budding

2.Fission

3. Conidia

4.Gemmules


Question:
Budding is the example of :

1.Vegetative reproduction

2.Tissue culture

3.Sexual production

4.Dispersal


Question:
Closed flower:

1. Decliny

2. Cteistogamy

3.Dichogamy

4. None of these


Question:
Commonly in a mature fertilized ovule n, 2n, 3n conditions are respectively found in :

1. Endosperm, nucellus and egg

2. Egg. antipodals and endosperm

3.Integuments, synergids and egg

4.Egg, nucellus and endosperm


Question:
Demerit of self pollinatlon is:

1.Unisexua

2. Dichoganty

3. Hetorostyle

4.None of these


Question:
Development of fruit without fertilizations is:

1. Parthenogenesis

2.Heterostyly

3.Parthenocarpy

4.Agamospermy


Question:
Double fertilization in angiosperms was discovered by:

1. Strassburger

2. J. C. Bose

3.Maheshwari

4.Nawaschin


Question:
Double fertilization means:

1.Fusion of two eggs

2. Fusion of egg and pollen nuder of two pollen grains

3. Fusion of two polar nuclei with one male gamete

4. Fusion between synergid cells and male gamete


Question:
Earthworm is:

1.Unisexual

2. Bisexual

3.Asexual

4. Neutral


Question:
Entemophily take place by

1.By Bird

2.By Bat

3.By Wind

4. By Insect


Question:
Fatheroflndian Angiosperm Embnology is:

1. B. M. John

2.B. G L. Swami

3.R.N. Kapil

4. P. Maheshwari


Question:
Haploid plants develop by pollen are called ……..

1.Emasculation

2. Parthenocarpy

3.androgenesis

4. somatic hybridization


Question:
How many meiotic divisions are necessary to produce 100 pollen grains ?

1. 100

2.50

3.25

4.20


Question:
If cotyledons are brought above the soil the germination is:

1.Hypogeal

2.Epigeal

3.Vivipaiy

4. None of these


Question:
In an ovule meiotic takes place in:

1.Nucellus

2. Megaspore mother cell

3.Megaspore

4. Archesporium


Question:
In Capsella the endosperm in generally:

1.Haploid

2. Diploid

3. Triploid

4.Tetraploid


Question:
In higher plants, fertilization is :

1.External

2. Internal

3. In water

4. In air


Question:
In higher plants, meiosis occurs?

1.During formation of gametes

2.During fertilization

3.During embryogenesis

4. In seeds


Question:
In Monocots, grafting is almost impossible because they lack :

1.Cambium

2. Ground tissue

3. Vascular bundle

4. Parenchymatous cells


Question:
In potato, which structure takes part in vegetative reproduction?

1.Adventitious root

2.Apex bud of stem

3.Germinating eye bud

4.Arial shoot


Question:
Normal Embryosac of Angiosperm is :

1.Unicellular

2. Bicelled

3.Penta celled

4.Seven called


Question:
Parthenogenesis is common in :

1. Grape

2.Mango

3. Citrus

4.Litchi


Question:
Pollination by Bat is called :

1.Omithorphily

2.Entemophily

3.Cheropterophily

4.Hydrophily


Question:
Pollination by bats is called:

1.omithophily

2. Entromophily

3.Cheiropterophily

4. Hydrophily


Question:
Pollination by snails is called:

1.Malecophily

2. Zoophily

3. Anemophily

4. Hydrophily


Question:
Pollination in Lotus is:

1.By water

2.By wind

3.By insect

4. All of these


Question:
Polymbryony occurs in:

1.Maize

2. Citrus

3.Corchorus

4.Carthamus


Question:
The example of bulb is:

1. Ginger

2.Doob grass

3.Onion

4. Potato


Question:
The organism similar to parent can be obtained by:

1.Speed

2. Zygote

3. Gametes

4. Binary fission


Question:
The reproduction takes place by gemma :

1. In higher plants

2.In lower animals

3. In some bryophytes

4. In mammals


Question:
The term scion is used in relation to :

1.Embryology

2. Sexual reproduction

3. Pollen

4.Grafting


Question:
Totipotency is

1.Development of a fruit from a flower in a medium

2.Development of an organ from a cell in a medium

3.Development of tissues of all kinds from a cell in a medium

4.Development of tissues of all kinds from a cell in a medium


Question:
Vegelative reproduction takes place in Bryophyllum :

1.By buds

2.By leaves

3.By seeds

4.By roots


Question:
Vegetative reproduction takes place in Agave:

1.By bulbils

2.By hybrid

3.By stolon

4. By rhizome


Question:
Vegetative reproduction takes place in Bacteria :

1.By binary fission

2. By hybridization

3.By fiission

4.By fission


Question:
What is hexapioid (on), in which total number, of chromosomes are 42. then number of chromosomes in its any gamete:

1. 14

2.28

3.42

4. 7


Question:
When more than one embryoper embryosac is found. It is called:

1. Embryogeny

2.Amphimisis

3.Agamospormy

4.Polyembryoni


Question:
When pollen tube enter into the nucellus through micropyle is called:

1. Porogamy

2.Xenogamy

3.Mesogamy

4. Dikogamy


Question:
When the gametes of two different strains fuse each other, then this process of reproduction is :

1.Sexual reproduction

2.Asexual, reproduction

3.Vegetative reproduction

4.None of these


Question:
Which of the following is viviparous?

1.Cockroach

2.Scorpion

3. Bee

4. Butterfly


Question:
Which structure is not found in Angiosperm?

1.Archegonium

2. Carpel

3.Anther

4.Magagametophyte


Question:
Which structure takes part in gametogenesis :

1. Male gamete

2.Female gamete

3.Both (a) and (b)

4.Male or female gamete


Question:
Who discovered fertilization?

1. Nawaschin

2.Strassburger

3.Leeuwen Hock

4. Robert Hook


Question:
Who proved that the cells are totipotent?

1. White

2. Skoog

3. Miller

4. Steward


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