genetics, evolution of life & ecological biodiversity - Category wise Question and Answer Practice Test with Solutions

genetics, evolution of life & ecological biodiversity PRACTICE TEST [5 - EXERCISES]

set 1

set 2

set 3

set 4

set 5

Question : 6

The book ‘Origin of Species’ was written by

a) Mendel

b) Darwin

c) Lamarck

d) de Vries

Answer: (b)

Question : 7

Match List-I with List-II :

List-I List-II
A. Discovery of transduction and conjugation 1. Khurana
B. Establishing the sex-linked inheritance 2. Kornberb
C. Isolation of DNA polymerase from E. coli 3. Lederberg
D. Establishing the complete genetic code 4. Morgan
Select the correct answer from the codes given below the lists: (A) (B) (C) (D)

a) 4 3 1 2

b) 3 4 1 2

c) 4 3 2 1

d) 3 4 2 1

Answer: (c)

Question : 8 [CDS]

Which one of the following is not a feature of eutrophic lakes?

a) Primary productivity is low

b) Blooms are frequent in eutrophic lakes

c) Plant nutrient flux is high

d) Dominated by blue green algae

Answer: (c)

Question : 9

The book ‘Origin of Species’ is written by

a) Darwin

b) Watson

c) Aristotle

d) Lamarck

Answer: (a)

'Origin of Species' book was written by Charles Robert Darwin.

During his world journey (1831–1936) as a naturalist on the H.M.S. Beagle ship, he visited many parts of the world. On the basis of the observations of this journey, he wrote the book thereby describing his theory of natural selection.

Question : 10

Down’s syndrome is due to

a) chromosome number increase in 18th pair autosome

b) chromosome number decrease in 21st pair autosome

c) chromosome number increase in 21st pair autosome

d) chromosome number decrease in 18th pair autosome

Answer: (c)

Down syndrome is a case of Trisomy 21, a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.

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