Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Intercalated discs are characteristic of muscles found in

  • heart

  • thigh

  • urinary bladder

  • stomach


A.

heart

Intercalated discs are characteristic of muscles found in


2.

Occurrence of triploid (3n) primary endosperm nucleus is a characteristic feature of

  • Algae

  • Gymnosperms

  • Angiosperms

  • Bryophytes


C.

Angiosperms

Occurrence of triploid (3n) primary endosperm nucleus is a characteristic feature of


3.

Match the source gland with its respective hormone and function and select the correct option.

  • Source gland Hormone Function
    Anterior pituitary Oxytocin Contraction of uterine muscle
  • Source gland Hormone Function
    Anterior pituitary Vasopressin Induces reabsorption of water in nephron
  • Source gland Hormone Function
    Thymus Thymosin Proliferation of T- lymphocytes
  • Source gland Hormone Function
    α- cells of islets of Langerhans Glucagon Uptake of glucose into the cell

C.

Source gland Hormone Function
Thymus Thymosin Proliferation of T- lymphocytes

Match the source gland with its respective hormone and function and select the correct option.


4.

Which of the following is not an invasive species?

  • Parthenium hysterophorus

  • Nelumbo (lotus)

  • Lantana camara

  • Eichhornia crassipes


B.

Nelumbo (lotus)

Which of the following is not an invasive species?


5.

In which of the following sets of organisms, does the external fertilization occur?

  • Echinodermata and mosses

  • Hemichordata and ferns

  • Amphibians and algae

  • Reptiles and gymnosperms


C.

Amphibians and algae

In which of the following sets of organisms, does the external fertilization occur?


6.

Stinging capsules (nematocysts) are found in

  • wasp and honeybee

  • scorpion and cobra

  • sea pen and sea fan

  • cactus and Venus flytrap


C.

sea pen and sea fan

Stinging capsules (nematocysts) are found in


7.

India is one of the twelve megadiversity countries with of genetic resources of the world

  • 12.1%

  • 18.1%

  • 38.1%

  • 8.1%


D.

8.1%

India is one of the twelve megadiversity countries with of genetic resources of the world


8.

In a diploid cell, at which stage of cell cycle, the amount of DNA is doubled?

  • G1 and G2 phase

  • G0 phase

  • S, G2 and M phase

  • S phase


D.

S phase

In a diploid cell, at which stage of cell cycle, the amount of DNA is doubled?


9.

C4 plants have better productivity because

  • C4 plants absorb more light

  • C4 plants absorb more CO2

  • C4 plants does not carry photorespiration

  • C4 plants have more amount of RuBisCO


C.

C4 plants does not carry photorespiration

C4 plants have better productivity because


10.

From the following groups, select the one which has only secondary metabolites?

  • Arbrin, cellulose, arginine, tyrosine

  • Glycine, gums, serine, diterpenes

  • Carotenoids, phenylalanine, curcumin, rubber

  • Conclavin-A, morphine, codeine, vinblastin


D.

Conclavin-A, morphine, codeine, vinblastin

From the following groups, select the one which has only secondary metabolites?