Model Paper 4 - Bihar Board (BSEB) STD 12 Science BIOLOGY Questions - Vidyadip

Question types

Model Paper 4 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 [1M]

Fill in blanks.

1 Marks Question

Short Answer Type Questions [2M]

3 Marks Question

Long Answer Type Questions [5M]

Sample Questions

Model Paper 4 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 [1M]1 Mark

Humans are the most important factor in extinction of wildlife is_________

A
Destruction of natural habitat
B
Hunting of wild animal
C
Pollution
D
Invasion of foreign species

View full solution →

Q 2M.C.Q [1M]1 Mark

The safe periods for MTP is_________

A
20 weeks
B
18 weeks
C
21 weeks
D
12 weeks

View full solution →

Q 3M.C.Q [1M]1 Mark

Citric acid is prepared from-

A
Aspergillus niger
B
Streptococcus lactis
C
Acetobacter
D
Candida utelis

View full solution →

Q 4M.C.Q [1M]1 Mark

Organism having two different alleles are called-

A
Heterozygous for alleles
B
Homozygous for alleles
C
Heterozygous and homozygous
D
None of these

View full solution →

Q 5M.C.Q [1M]1 Mark

Ovulation occurs in-

A
Ovary
B
$14^{\text {th }}$ day of menstruation
C
Both a and b
D
None of the above

View full solution →

Q 6Fill in blanks.1 Mark

_________Infections phase of plasmodium.

View full solution →

Q 7Fill in blanks.1 Mark

Baculoviras belongs from _________genus.

View full solution →

Q 8Fill in blanks.1 Mark

The Interaction between a whale and barnecles on its back is called_________

View full solution →

Q 9Fill in blanks.1 Mark

Insects hide themselves from predators through _________it.

View full solution →

Q 10Fill in blanks.1 Mark

Ovulation is Induced by_________ Hormones.

View full solution →

Q 111 Marks Question1 Mark

On which method the ELISA test is based.

View full solution →

Q 121 Marks Question1 Mark

t-RNA is also called adaptor RNA. Why.

View full solution →

Q 131 Marks Question1 Mark

Why are testes and ovary called primary reproductive organs.

View full solution →

Q 141 Marks Question1 Mark

Explain the role of predators in nature.

View full solution →

Q 151 Marks Question1 Mark

Explain the role of Bacculovirus as a biocontrol agents.

View full solution →

Q 16Short Answer Type Questions [2M]2 Marks

Write the vital importance of microrganism for house hold products.

View full solution →

Q 17Short Answer Type Questions [2M]2 Marks

Write the properties of DNA being as a gentic material.

View full solution →

Q 18Short Answer Type Questions [2M]2 Marks

Write the name of any two copper releasing intrauterine devices. Write the reasons which make them effective contraceptives.

View full solution →

Q 19Short Answer Type Questions [2M]2 Marks

Write a brief note on follicular development.

View full solution →

Q 20Short Answer Type Questions [2M]2 Marks

Mention the steps of Isolate DNA from bacteria.

View full solution →

Q 213 Marks Question3 Marks

Define the following-
(A) Food Web
(B) decomposer
(C) Standing Crop

View full solution →

Q 223 Marks Question3 Marks

Show with the help of diagram the stages in which a pollen mother celll transforms into a pollengrain.

View full solution →

Q 233 Marks Question3 Marks

Explain the following diseases in detail.
(a) Haemophilia
(b) Colour blindness
(c) Thalasemia

View full solution →

Q 243 Marks Question3 Marks

What is megasporogenesis. Explain the structure of Megusporangium with the help of labelled diagram.

View full solution →

Q 253 Marks Question3 Marks

What is autosomal disorder. Explain any two autosomal disorders.

View full solution →

Q 26Long Answer Type Questions [5M]5 Marks

What is DNA finger printing. Who discovered it. Write the DNA finger printing process. Writes its uitility.

View full solution →

Q 27Long Answer Type Questions [5M]5 Marks

What is central dogma. Explain the process of translation with the help of suitable diagram.

View full solution →

Q 28Long Answer Type Questions [5M]5 Marks

(a) What is vaccination. How many types of vaccins are there.
(b) What is allergy. Explain any one allergy based on its causes, symptoms, and treatments.

View full solution →

Q 29Long Answer Type Questions [5M]5 Marks

What is Innate Immunity. Explain in detail its various barriers.

View full solution →

Browse all question groups ↑

Generate a Model Paper 4 paper free

Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.

Generate Paper Free All BIOLOGY chapters