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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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A select subset of questions has been made available here.
You can use this for preparation purpose.
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Question :

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


Answer :

Mendel
Darwin
Morgan
Lamarck


Question :

The branch of biology that deals with transmission of
characters from one generation to other is termed as


Answer :

evolution
genetics
heredity
biogenetic law


Question :

In evolutionary terms, we have more in common with
[NCERT]


Answer :

a Chinese school-boy
a chimpanzee
a spider
a bacterium


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 :

If a round, green seeded pea plant (RR yy) is crossed with
wrinkled, yellow seeded pea plant, (rr YY) the seeds
produced in F1 generation are


Answer :

round and yellow
round and green
wrinkled and green
wrinkled and yellow


Question :

According to the evolutionary theory, formation of a new
species is generally due to


Answer :

sudden creation by nature
accumulation of variations over several generations
clones formed during asexual reproduction
movement of individuals from one habitat to another


Question :

Some dinosaurs had feathers although they could not fly
but birds have feathers that help them to fly. In the context
of evolution this means that


Answer :

reptiles have evolved from birds
there is no evolutionary connection between reptiles and birds
feathers are homologous structures in both the organisms
birds have evolved from reptiles


Question :

Answer :



Question :

The variation of natural selection operates due to random
mutations. What does this imply about natural selection ?


Answer :

There is no possibility that God could be involved in this process.
Natural selection is a random process.
Natural selection is a direct process in which one variant will be favoured in a given environment over another.
(a) and (b).


Question :

How did people respond to Mendel's ideas on inherited
traits ?


Answer :

Immediately accepted by his peers.
Found to be out of date.
Thought to be far ahead of their time.
Not recognised for more than thirty years.