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Biology (NEST Practice Test)

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Menstrual cycle takes place in

  1. tigers

  2. apes

  3. sheep

  4. cows

  5. rats


Correct Option: B
Explanation:

Menstrual cycle takes place in humans, apes and monkeys.

Which of the following is diploid in nature?

  1. Ovary

  2. Egg

  3. Pollen

  4. Male gamete

  5. Female gamete


Correct Option: A
Explanation:

It is diploid in nature.

Name the phase which ultimately leads to death.

  1. Ageing

  2. Juvenility

  3. Senescence

  4. Maturity

  5. Death


Correct Option: C
Explanation:

In this, the cell of an organism is no longer capable of dividing, but is still alive and metabolically active.

Name the phenomenon by which a turkey reproduces.

  1. Parthenogenesis

  2. Sexual reproduction

  3. Grafting

  4. Binary fission

  5. Asexual reproduction


Correct Option: A
Explanation:

It is a type of asexual reproduction.

Which method is used to grow water lettuce?

  1. Stolons

  2. Sunners

  3. Offsets

  4. Suckers

  5. Bulbils


Correct Option: C
Explanation:

Offsets  are the internode long runners which develop tuft of leaves at apex.

The study of the origin of words and the way in which their meanings have changed throughout history is known as

  1. etymology

  2. paleobotany

  3. palynology

  4. co-taxonomy

  5. cytology


Correct Option: A
Explanation:

It is the study of the origin of words and the way in which their meanings have changed throughout history.

In which type of germination are seeds attached to the parent plant?

  1. Ovipary

  2. Vivipary

  3. Epigeal

  4. Hypogeal

  5. Pollen germination


Correct Option: B
Explanation:

Plants produce seed that germinate before they detach from the parent plant.

Banana is vegetatively propagated by

  1. tubers

  2. bulbs

  3. rhizomes

  4. corms

  5. suckers


Correct Option: E
Explanation:

They arise from the base of erect shoot and grow horizontally in the soil.

Potamogeton is an example of

  1. bulbils

  2. aerial stems

  3. creeping stems

  4. leaves

  5. turions


Correct Option: E
Explanation:

It is a specialised overwintering bud produced by aquatic plants.

Which of the following is related to the process of schizogony?

  1. Multiple fission

  2. Budding

  3. Binary fission

  4. Vegetative reproduction

  5. Grafting


Correct Option: A
Explanation:

Schizogony is asexual reproduction by multiple fission.

What is the other name of doob grass?

  1. Cynodon dactylon

  2. Oxalis acetosella

  3. Albizia lebbek

  4. Eichhoria

  5. Fragria


Correct Option: A
Explanation:

Cynodon dactylon is also known as doob grass.

What is the most abundant organic compound on Earth?

  1. Protein

  2. Lipid

  3. Steroid

  4. Cellulose

  5. Fat


Correct Option: D
Explanation:

Cellulose is the most abundant organic compound on Earth.

What is the botanical name of tulsi?

  1. Mangifera indica

  2. Ocimum tenuiflorum

  3. Azadirachta indica

  4. Cocos nucifera

  5. Aloe barbadensis miller


Correct Option: B
Explanation:

It is the botanical name of tulsi.

Double fertilisation was discovered by

  1. F. C. Steward

  2. Nawaschin

  3. Antony von Leeuwenhoek

  4. G. B. Amici

  5. None of these


Correct Option: B
Explanation:

In 1898, he discovered double fertilisation.

Which plant flowers once in 12 years?

  1. Bamboo

  2. Pansies

  3. Bluebeard

  4. Strobilanthus kunthiana

  5. Crocus


Correct Option: D
Explanation:

This is a shrub that is found in the shola forests of the Western Ghats in South India.

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