Biology Questions - Exam Questions

 1.  Name the hormone which regulate blood calcium level

a) Insulin

b) Thyroxin

c) Parathyroid Hormone

d) Melatonin

2. Fertilized ovum is called

a) Corpus luteum

b) Secondary oocyte

c) Blastocyst

d) Zygote

3. Dihybrid test cross ratio is

a) 1:2:1

b) 1:1:1:1

c) 1:1

d) 3:1

4. Ascidia is an example for

a) Echinodermata

b) Tunicata

c) Cephalochordata

d) Hemichordata

5. Name the line that through the centre of I band of a muscle fibre

a) M line

b) Z line

c) G line

d) None of these

6. Name the type of scales present in chondrichthyes:

a) Cycloid

b) Ganoid

c) Placoid

d) Ctenoid

7. The enzyme that helps in DNA replication

a) RNA polymerase

b) DNA polymerase

c) Gyrase

d) Helicase

8. Chromosome theory of inheritance was proposed by

a) Jacob and Monod

b) Sutton and Boveri

c) Hershey and Chase

d) Sturtevant

9. Which of the following hormones is not found in plants?

a) GA

b) 2, 4-D

c) ABA

d) IAA

10. In anaerobic respiration the R.Q is

a) 1

b) 1

c) 0

d) ∞

  Answers: 1-a, 2-d, 3-b, 4-b, 5-b, 6-c, 7-b, 8-b, 9-b, 10-d