Life Science MCQ Questions Answers Biology Practice Set


11) Our major foods, fibres, spices, fruits and beverage crops are

a) flowering plants

b) gymnosperms plants

c) pteridophytes

d) bryophytes

View Answer
Option – a)

12) Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?

a) By cyanobacteria

b) By electrical discharges in the atmosphere

c) By industrially synthesised fertilizer

d) By denitrification

View Answer
Option – d)

13) DNA structure was first described by

a)Catcheside

b) Nirenberg

c) Lederberg

d) Watson and Crick

View Answer
Option – d)

14) Nymph is the name of young one of

a) butterfly

b) beetle

c) housefly

d) cockroach

View Answer
Option – d)

15) On which of the following plants did Gregor Mendal perform his classical experiment?

a) Gram

b) Maize

c) Pea

d) Wheat

View Answer
Option – c)

16) Night blindness is cause by lack of which vitamin?

a) Vitamin A

b) Vitamin B

c) Vitamin C

d) Vitamin D

View Answer
Option – a)

18) Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

a) tetanus

b) influenza

c) cholera

d) typhoid

View Answer
Option – c)

19) Radical vascular bundles are those in which

a) xylem is surrounded by phloem

b) phloem is surrounded by xylem

c) xylem and phloem occur on the same radius

d) xylem and phloem occur on the different radii

View Answer
Option – d)

20) Which is not an example of fungi ?

a)Mushroom

b)Mucor

c)Albugo

d)Pulp

View Answer
Option – d)