2025 CUET UG Biology Question Paper || CUET Biology Practice Test

1. Which of the following statements are correct with respect to T H Morgan?

A. His experiment led to discovering the basis for the variation that sexual reproduction produced.
B. He mapped the position of genes on the chromosomes.
C. He coined the term linkage.
D. He crossed yellow bodied, white eyed Drosophila females to brown bodied red eyed Drosophila males and observed the results contrary to that of Mendel’s.

A, B and D only
A, B and C only
A, B, C and D only
A, C and D only

2. Arrange the following spermatogenic cells in correct sequence of Spermatogenesis.

A. Spermatids
B. Spermatogonium
C. Secondary Spermatocytes
D. Primary Spermatocytes

B, D, C, A
D, B, A, C
A, B, C, D
C, B, A, D

3. Which of the following drinks are produced by distillation?

A. Whisky
B. Brandy
C. Wine
D. Beer

A and B only
A and C only
B, C and D only
A, C and D only

4. Which one of the following is/are inverted pyramid in an ecosystem?

A. Pyramid of energy
B. Pyramid of biomass (land)
C. Pyramid of biomass (Sea)
D. Pyramid of number

A, B and D only
C only
A, B, C and D
B, C and D only

5. Arrange the following wall layers of microsporangium starting outer to inner.

A. Tapetum
B. Epidermis
C. Endothecium
D. Middle layer

A, B, C, D
B, A, D, C
D, B, C, A
B, C, D, A

6. Arrange the following historical events in the history of life in chronological order?

A. Natural selection
B. Prokaryotic cell
C. Eukaryotic cell
D. Self replicating molecules

A, B, C, D
A, C, B, D
B, A, D, C
D, B, C, A

7. Arrange the following events in correct order pertaining to sewage treatment plant.

A. Bacteria produce a mixture of gases such as methane, hydrogen Sulphide and carbon dioxide.
B. Primary effluent is passed into aeration tank for the growth of microbes into flocs.
C. A small part of activated sludge is pumped back into aeration tank as inoculum and remaining to anaerobic sludge digesters.
D. The bacteria and fungi in the sludge are digested by another kind of bacteria.

B, C, D, A
A, C, B, D
B, A, D, C
C, B, D, A

8. Arrange the following ducts pertaining to male reproductive system starting from seminiferous tubules.

A. Vas deferens
B. Vasa efferentia
C. Rete testis
D. Epididymis

A, B, C, D
B, C, D, A
D, A, B, C
C, B, D, A

9. Select the components that are needed to set up a polymerase chain reaction.

A. Two primers and dNTPs
B. Template DNA
C. DNA ligase
D. DNA polymerase

A, B and D only
A, B and C only
A, B, C and D
B, C and D only

10. The cause of biodiversity loss are:

A. Habitat loss
B. Invasion of alien species
C. Co-extinction
D. Endemism

A, B and D only
A, B and C only
A, B, C and D
B, C and D only

11. Arrange the following cells in correct sequence of oogenesis.

A. Secondary oocyte
B. Oogonia
C. Primary oocyte
D. Ovum

B, C, A, D
A, B, C, D
B, A, D, C
D, C, A, B