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CBSE Notes 2011-2012 » Heredity and Evolution - Class 10 Biology MCQs (Free Practice Test)

Heredity and Evolution - Class 10 Biology MCQs (Free Practice Test)


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Question :

A : Closely related species have few characteristics in
common.
B : Interbreeding among individuals of different
populations of a species maintains a free flow of genes
in these populations.


Answer :

'A' Right, 'B' Right
'A' Right, 'B' Wrong
A' Wrong, 'B' Right
'A' Wrong, 'B' Wrong


Question :

A basket of vegetables contains carrot, potato, radish and
tomato. Which of them represent the correct homologous
structures ?


Answer :

Carrot and potato
Carrot and tomato
Radish and carrot
Radish and potato


Question :

Which of these is homozygous recessive ?


Answer :

s
ss
Ss
SS


Question :

Human offspring's sex is determined


Answer :

through father's sex chromosomes.
through mother's sex chromosomes.
by hormones.
by enzymes.


Question :

The structural similarities between the flippers of whales
and the arms of humans are used to show that the


Answer :

whales evolved from the human species
whales are older than the human species
human species began life in the oceans
human species and whales have a common ancestor.


Question :

A Mendelian experiment consists in breeding tall pea plants
bearing violet flowers with short pea plants bearing white
flowers. The progeny all bore violet flowers, but almost
half of them are short. This suggests that the genetic makeup
of the tall parent can be depicted as - [NCERT]


Answer :

TTWW
TTww
TtWW
TtWw


Question :

The sequence of events in geographic speciation is most
likely to be :


Answer :

Reproductive isolation
Geographic barrier
Genetic divergence
Genetic divergence


Question :

Which of the following statement is incorrect ?


Answer :

For every hormone there is a gene.
For every protein there is a gene.
For production of every enzyme there is a gene.
For every molecule of fat there is a gene.


Question :

Study of fossils is known as


Answer :

Paleobotany
Anatomy
Palaeontology
Ornithology


Question :

The theory of evolution of species by natural selection was
given by


Answer :

Mendel
Darwin
Morgan
Lamarck