Model Paper 3 - Rajasthan Board (RBSE) STD 12 Science BIOLOGY Questions - Vidyadip

Question types

Model Paper 3 question types

58 questions across 6 question groups — pick any mix to generate a BIOLOGY paper with step-by-step answer keys.

58

Questions

6

Question groups

5

Question types

M.C.Q (0.5 Marks)

Fill in blanks.

1 Marks Question

1.5 Marks Questions

3 Marks Question

4 Marks Questions

Sample Questions

Model Paper 3 questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (0.5 Marks)1 Mark

Energy stored at the consumer level is called-

A
Gross primary productivity
B
Secondary productivity
C
Net primary productivity
D
Net productivity

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Q 2M.C.Q (0.5 Marks)1 Mark

Earth summit in Rio de Janeiro is related to-

A
Fertility of the soil
B
From the survey of Natural resources
C
Protection of environment
D
By preserving forests.

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Q 3M.C.Q (0.5 Marks)1 Mark

What is the relationship between mycorrhiza fungus and roots.

A
Parasite
B
Saprophyte
C
Symbiotic
D
Epiphyte

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Q 4M.C.Q (0.5 Marks)1 Mark

Biopiracy is related to-

A
From biological reserch
B
From tradiational knowledge
C
By the discovery of biomolecule and genes
D
All of the above

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Q 5M.C.Q (0.5 Marks)1 Mark

Restriction enzyme was discovered by-

A
Berg
B
Smith and North
C
Waxman
D
Alexander flemming

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Q 6Fill in blanks.1 Mark

Parasites that drive nutrition from the outer surface of host are called_________

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Q 7Fill in blanks.1 Mark

In Lichens_________

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Q 8Fill in blanks.1 Mark

The Government of India got the patent against cancelled_________

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Q 9Fill in blanks.1 Mark

In both chain of Insulin_________amino acids are present.

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Q 10Fill in blanks.1 Mark

Plasmid discovered by_________

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Q 111 Marks Question1 Mark

What is called a sacred grove.

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Q 121 Marks Question1 Mark

Write the names of four basics factors that control population density.

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Q 131 Marks Question1 Mark

Write the name of cry gene which conrol cotton bollworm and maize borer.

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Q 141 Marks Question1 Mark

What is biofertilizer and write two example.

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Q 151 Marks Question1 Mark

What is Toddy. How is it produced.

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Q 161.5 Marks Questions2 Marks

Described the Lactional amnorrhea method of birth control.

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Q 171.5 Marks Questions2 Marks

What are biodiversity hot spot. How are they determind. Write the name of hotspots of India.

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Q 181.5 Marks Questions2 Marks

What is primary productivity. How does it differ from net primary productivity.

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Q 191.5 Marks Questions2 Marks

What is the competitive exclusion principle or Gauss's principle. Explain resources divison.

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Q 201.5 Marks Questions2 Marks

Explain the advantages of using genetically modified plants.

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Q 213 Marks Question3 Marks

Explain energy flow in the ecosystem. Give diagrammatic representation of energy flow through different trophic level.

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Q 223 Marks Question3 Marks

Describe the decomposition cycle in a terrestrial ecosystem and make its diagrammtic representation.

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Q 233 Marks Question3 Marks

Explain protenor type of sex determination with an example draw its ray diagram.

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Q 243 Marks Question3 Marks

What is Incomplete dominance. Explain the inheritance of colour in snapdragon flower up to $\mathrm{F}_{2}$ generation.

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Q 253 Marks Question3 Marks

Draw a labelled diagram of transverse section of anther. Describe the Internal structure of micro sporangium.

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Q 264 Marks Questions4 Marks

Write the differences in following-
(a) Write the causes of cancer.
(b) Explain Cancer detection
(c) Write the characters of cancer cells
(d) Write the types of cancer

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Q 274 Marks Questions4 Marks

Write the differences in following-
(a) Humoral Immunity and cell mediated Immunity.
(b) Innate Immunity and acquired Immunity
(c) Antigens and antibody
(d) T-lymphocytes and B-lymphocytes

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Q 284 Marks Questions4 Marks

What is Human genome project. Present its features and explain its mechanism.

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Q 294 Marks Questions4 Marks

What is nucleosome. Draw a labelled diagram of nucleosome. Explain the structures of DNA helix.

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