M.C.Q (1 Marks)

MCQ 11 Mark

In Gel Electrophoresis, fragments are moved from:

1. Anode to Cathode
2. Cathode to Anode
3. Negative to Positive
4. Positive to Negative

A
1, 4
B
1,3
C
2, 4
D
2, 3

Answer

2, 3
Explanation: 2, 3

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MCQ 21 Mark

Which one of the following helps in absorption of phosphorus from soil by plants?

A
Rhizobium
B
Glomus
C
Frankia
D
Anabaena

Answer

Glomus
Explanation: Glomus

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MCQ 31 Mark

In the pedigree analysis, the symbol shown below represent

A
Sex unspecified
B
Affected individuals
C
Normal individuals
D
Matting between relatives

Answer

Affected individuals
Explanation: In pedigree analysis, the symbol shown above represents affected individuals.

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MCQ 41 Mark

Bacteria and fungi in a forest ecosystem are generally:

A
Producers
B
Primary consumers
C
Secondary consumers
D
Decomposers

Answer

Decomposers
Explanation: Decomposers

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MCQ 51 Mark

Picture shown below is an example of:-

A
Convergent evolution of Australian marsupials and placental mammals
B
Divergent evolution of Australian marsupials and placental mammals
C
Homologous organs of both animals
D
Analogous organs of both animals

Answer

Convergent evolution of Australian marsupials and placental mammals
Explanation: Wolf and Tasmania Wolf are examples of convergent evolution of placental mammals and Australian marsupials. They are evolved differently due to different in climatic and geographic regions.

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MCQ 61 Mark

Genotypic and phenotypic ratio in monohybrid cross remains same in case of:

A
Dominant and recessive genes
B
Pseudoallelic genes
C
Intermediate inheritance
D
Sex linked genes

Answer

Intermediate inheritance
Explanation: Intermediate inheritance

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MCQ 71 Mark

Physical removal of the large and small particle from the sewage through filtration and sedimentation is called:

A
Primary treatment
B
Secondary treatment
C
Tertiary treatment
D
Quaternary treatment

Answer

Primary treatment
Explanation: Primary treatment of sewage treatment involves the physical removal of large and small particles like paper, plastic, pebble by passing through a screen.

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MCQ 81 Mark

Steroids are used in:

A
All of these
B
Birth control
C
Treatment of hormonal imbalance.
D
Treatment of autoimmune diseases.

Answer

All of these
Explanation: All of these

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MCQ 91 Mark

Amniocentesis is the withdrawal of amniotic fluid in:

A
Menopause
B
Parturition
C
Gestation
D
Lactation

Answer

Gestation
Explanation: Gestation

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MCQ 101 Mark

Just as a person moving from Delhi to Shimla to escape the heat for the duration of hot summer, thousands of migratory birds from Siberia and other extremely cold northern regions move to:

A
Keolado National Park
B
Corbett National Park
C
Meghalaya
D
Western Ghat

Answer

Keolado National Park
Explanation: Keolado National Park

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MCQ 111 Mark

Which of the following is the component of oral pills?

A
Antibiotics
B
Oxytocin
C
Progesterone
D
Relaxin

Answer

Progesterone
Explanation: Progesterone

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MCQ 121 Mark

The primary productivity in an ecosystem is expressed as:

A
$gm^{-2}yr$
✓
$gm^{-2}yr^{-1}$
C
$K\ cal\ m^{-2}yr^{-1}$
D
$K\ cal\ m^{-2}$

Answer

Correct option: B.

$gm^{-2}yr^{-1}$

Primary productivity expressed as $gm^{-2}yr^{-1}$

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BIOLOGY M.C.Q (1 Marks)

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