Question # 1

Gene pool consists of all alleles at all gene loci in all individuals of the:

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community

species

population

family

Which of the following cross is carried to check the genotype fo an individuals showing a dominant phenotype ?

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Check cross

Test Cross

Criss Cross

Self Cross

X and Y linked genes are also called as :

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Sex genes

Dominant genes

Autosomal genes

Pseudoautosomal genes

The dominance relations of 4 O'clock plant can be described in terms of :

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Complete Dominance

Incomplete Dominance

Partial Dominance

Both b and c

The prokaryotes may have arisen more than

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420 million years ago

42 billion years ago

3.5 billion years ago

1.5 billion years ago

According to endosymbiont hypothesis the aerobic bacteria developed into

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Lysosomes

Mitachondria

Chloroplast

Nucleus

Normal fruit flies have

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White eyes

Bright red eyes

Light red eyes

Black eyes

Armadillos, the armoured mammals live only in :

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Asia

Europe

America

Africa

The processes that have transformed life an earth form its earliest forms to the vast diversity that we observe today, are collectively referred as :

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Evolution

Succession

Revolution

All of above

According to Darwin descent with modification means

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Same ancestor

Same characters

Different ancestors

Different characters

Population is a localized group of individuals belonging to :

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same species

different species

same community

same stand

Archaeobacteria could tolerate temperatures up to :

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140°C

120°C

95°C

70°C

An exchange of segments between non-sister chromatids of homologous chromosomes during meiosis is termed as

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Crossing over

Hopping

Taking over

Segregation

The first person who argued from evidence that species were not created in their present form rather they had evolved from ancestral species was

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Aristotle

Lamarck

Darwin

Mendel

What is the risk of a colour blind child in a family when mother is colour-blind but father is normal?

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100%

75%

50%

25%

The idea of inheritance of acquired characteristics was presented by

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Margulis

Lamarck

Linnaeus

Cuvier

Rh factor or antigen was first studied in :

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Man

Owl

Monkey

Fish

Wallace developed a Theory of Natural Selection similar to that of

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Lamarck

Linnaeus

Darwin

Lyell

Ultimate source of all changes is :

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Mutation

Genetic drift

Evolution

Migration

Essay on "Principle of population" was published by

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Cuvier

Mendel

Malthus

Darwin

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