Biology – Class 12 Mock Test 4

10%

Question 1 of 10

1. The presence of which base in the place of uracil makes the DNA more stable?

Guanine

Adenine

Cytosine

Thymine

Question 1 of 10

Question 2 of 10

2. Age of tools of stones and bones were known as ______

Azoic

Mesolithic

Mesozoic

Palaeolithic

Question 2 of 10

Question 3 of 10

3. Which of the following are properties of stabilizing selection?

Mean value changes

Operates in a constant environment

Favors the complex phenotype

Peak gets lower and wider

Question 3 of 10

Question 4 of 10

4. _______ was the name of the ship in which Darwin sailed around the world.

H.M.S Beagle

H.M.S Eagle

H.S.S Beagle

H.P.S Beagle

Question 4 of 10

Question 5 of 10

5. Which of the following is not among the types of apes?

Monkey

Gorilla

Orangutan

Chimpanzee

Question 5 of 10

Question 6 of 10

6. Which of the following does not belong to tracheophyte ancestors?

Sphenopsids

Herbaceous lycopods

Arborescent lycopods

Zosterophyllum

Question 6 of 10

Question 7 of 10

7. Which among the following are not included in the concept of inheritance of acquired characters?

The long neck of giraffes

Retractile claws of carnivorous animals

Absence of limbs in snakes

Melanism in the peppered moth

Question 7 of 10

Question 8 of 10

8. Man belongs to the super family ______

Mammalia

Hominidae

Primates

Hominoidae

Question 8 of 10

Question 9 of 10

9. Stability is not a property of genetic material.

False

True

Question 9 of 10

Question 10 of 10

10. Which of the following does not belong to Peking man’s characteristics?

Cranial capacity was 850-1300 c.c.

They lived in huts

Origin and evolution before 6 lakh years

Complete erect posture

Question 10 of 10