ICSE%20XII/MCQ%20Questions%20for%20Class%2012%20Biology%20Set%201 Sample Test,Sample questions

Question:
A typical angiospermic embryo sac is usually:

1.One-celled

2. Two-celled

3. Five-celled

4.seven-celled

Posted Date:-2022-09-21 09:17:38


Question:
After fertilization ovule develops into:

1. Integument

2. Seed

3.Embryo

4. Endosperm

Posted Date:-2022-09-21 09:09:32


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

1.Archegonium

2.Pistil

3.Anther

4.Megagametophyte

Posted Date:-2022-09-21 09:15:29


Question:
An example of rhizome is

1.Garlic

2.Colocassia

3.Ginger

4.Onion

Posted Date:-2022-09-21 08:43:46


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

Posted Date:-2022-09-21 09:12:46


Question:
Anemophily takes place by:

1.By Bird

2.By Bat

3.By Snail

4. By Wind

Posted Date:-2022-09-21 08:15:04


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

1. Budding

2.Fission

3. Conidia

4.Gemmules

Posted Date:-2022-09-21 08:46:37


Question:
Budding is the example of :

1.Vegetative reproduction

2.Tissue culture

3.Sexual production

4.Dispersal

Posted Date:-2022-09-21 08:44:37


Question:
Closed flower:

1. Decliny

2. Cteistogamy

3.Dichogamy

4. None of these

Posted Date:-2022-09-21 09:06:36


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

Posted Date:-2022-09-21 09:09:01


Question:
Demerit of self pollinatlon is:

1.Unisexua

2. Dichoganty

3. Hetorostyle

4.None of these

Posted Date:-2022-09-21 09:07:08


Question:
Development of fruit without fertilizations is:

1. Parthenogenesis

2.Heterostyly

3.Parthenocarpy

4.Agamospermy

Posted Date:-2022-09-21 09:26:14


Question:
Double fertilization in angiosperms was discovered by:

1. Strassburger

2. J. C. Bose

3.Maheshwari

4.Nawaschin

Posted Date:-2022-09-21 09:22:32


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

Posted Date:-2022-09-21 09:23:52


Question:
Earthworm is:

1.Unisexual

2. Bisexual

3.Asexual

4. Neutral

Posted Date:-2022-09-21 08:42:56


Question:
Entemophily take place by

1.By Bird

2.By Bat

3.By Wind

4. By Insect

Posted Date:-2022-09-21 08:17:04


Question:
Fatheroflndian Angiosperm Embnology is:

1. B. M. John

2.B. G L. Swami

3.R.N. Kapil

4. P. Maheshwari

Posted Date:-2022-09-21 09:18:15


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

1.Emasculation

2. Parthenocarpy

3.androgenesis

4. somatic hybridization

Posted Date:-2022-09-21 08:59:50


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

1. 100

2.50

3.25

4.20

Posted Date:-2022-09-21 09:23:12


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

1.Hypogeal

2.Epigeal

3.Vivipaiy

4. None of these

Posted Date:-2022-09-21 09:20:13


Question:
In an ovule meiotic takes place in:

1.Nucellus

2. Megaspore mother cell

3.Megaspore

4. Archesporium

Posted Date:-2022-09-21 09:13:26


Question:
In Capsella the endosperm in generally:

1.Haploid

2. Diploid

3. Triploid

4.Tetraploid

Posted Date:-2022-09-21 09:14:12


Question:
In higher plants, fertilization is :

1.External

2. Internal

3. In water

4. In air

Posted Date:-2022-09-21 08:54:44


Question:
In higher plants, meiosis occurs?

1.During formation of gametes

2.During fertilization

3.During embryogenesis

4. In seeds

Posted Date:-2022-09-21 08:42:15


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

1.Cambium

2. Ground tissue

3. Vascular bundle

4. Parenchymatous cells

Posted Date:-2022-09-21 09:21:57


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

Posted Date:-2022-09-21 08:49:19


Question:
Normal Embryosac of Angiosperm is :

1.Unicellular

2. Bicelled

3.Penta celled

4.Seven called

Posted Date:-2022-09-21 09:08:20


Question:
Parthenogenesis is common in :

1. Grape

2.Mango

3. Citrus

4.Litchi

Posted Date:-2022-09-21 09:10:10


Question:
Pollination by Bat is called :

1.Omithorphily

2.Entemophily

3.Cheropterophily

4.Hydrophily

Posted Date:-2022-09-21 08:14:27


Question:
Pollination by bats is called:

1.omithophily

2. Entromophily

3.Cheiropterophily

4. Hydrophily

Posted Date:-2022-09-21 09:24:32


Question:
Pollination by snails is called:

1.Malecophily

2. Zoophily

3. Anemophily

4. Hydrophily

Posted Date:-2022-09-21 09:25:11


Question:
Pollination in Lotus is:

1.By water

2.By wind

3.By insect

4. All of these

Posted Date:-2022-09-21 08:59:16


Question:
Polymbryony occurs in:

1.Maize

2. Citrus

3.Corchorus

4.Carthamus

Posted Date:-2022-09-21 09:21:09


Question:
The example of bulb is:

1. Ginger

2.Doob grass

3.Onion

4. Potato

Posted Date:-2022-09-21 08:56:11


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

1.Speed

2. Zygote

3. Gametes

4. Binary fission

Posted Date:-2022-09-21 08:56:45


Question:
The reproduction takes place by gemma :

1. In higher plants

2.In lower animals

3. In some bryophytes

4. In mammals

Posted Date:-2022-09-21 08:55:37


Question:
The term scion is used in relation to :

1.Embryology

2. Sexual reproduction

3. Pollen

4.Grafting

Posted Date:-2022-09-21 08:57:18


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

Posted Date:-2022-09-21 09:16:33


Question:
Vegelative reproduction takes place in Bryophyllum :

1.By buds

2.By leaves

3.By seeds

4.By roots

Posted Date:-2022-09-21 08:57:50


Question:
Vegetative reproduction takes place in Agave:

1.By bulbils

2.By hybrid

3.By stolon

4. By rhizome

Posted Date:-2022-09-21 08:58:28


Question:
Vegetative reproduction takes place in Bacteria :

1.By binary fission

2. By hybridization

3.By fiission

4.By fission

Posted Date:-2022-09-21 08:48:38


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

Posted Date:-2022-09-21 08:45:41


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

1. Embryogeny

2.Amphimisis

3.Agamospormy

4.Polyembryoni

Posted Date:-2022-09-21 09:27:51


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

1. Porogamy

2.Xenogamy

3.Mesogamy

4. Dikogamy

Posted Date:-2022-09-21 09:28:39


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

Posted Date:-2022-09-21 08:47:28


Question:
Which of the following is viviparous?

1.Cockroach

2.Scorpion

3. Bee

4. Butterfly

Posted Date:-2022-09-21 08:53:08


Question:
Which structure is not found in Angiosperm?

1.Archegonium

2. Carpel

3.Anther

4.Magagametophyte

Posted Date:-2022-09-21 09:07:46


Question:
Which structure takes part in gametogenesis :

1. Male gamete

2.Female gamete

3.Both (a) and (b)

4.Male or female gamete

Posted Date:-2022-09-21 08:50:19


Question:
Who discovered fertilization?

1. Nawaschin

2.Strassburger

3.Leeuwen Hock

4. Robert Hook

Posted Date:-2022-09-21 09:27:04


Question:
Who proved that the cells are totipotent?

1. White

2. Skoog

3. Miller

4. Steward

Posted Date:-2022-09-21 09:17:06


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