Question # 1

In Meselson ansd stahl experiment, the DNA from sample at 20 minutes, after centrifugatioon it made sediments at the :

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Top

Bottom

Intermediate

Top & intermediate

The armored mammal that lives only in America is the.

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Armadillo

Echidna

Pengun

Pelvis and leg bones

According to endosymbiont hypothesis, the aerobic bacteria developed into.

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Ribosome

Lysosome

Mitochondria

Golgi apparatus

Endangered species of plants have been recorded to more than.

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300

500

600

800

Which of the following is vestigla organ of whale.

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Pelvis

Leg bones

Pelvis and leg bones

Lungs

How many types of finches did Darwin collect on Galapagos Island.

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13 types

20 types

25 types

30 types

A group of individuals belong to a particular species and sharing a common geographic area is called.

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Community

Population

Ecosystem

Biosphere

A general formula called the hard-Weinberg equation is used for calculating the frequencies of alleles and genotypes in populations at

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Equilibrium

Balance

Stability

Poise

A group of bacteria that can tolerate temperate upto 120 ^oC

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Eubacteria

Mycoplasma

Archaebacteria

E.Coli

Lyell published the principle of.

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Population

Community

Geology

Blome

In Griffith experiment mice developed pneumonia when they were injected with:

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R-type bacteria

Heat killed S-type bacteria

Heat killed R-type bases

Heat killed S-type becteria along with live R-type becteria

Some amoeboflagellates ingested cyanobacteria and led to the development of

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Mitochondria

Golgi apparatus

Chloroplasts

Vacuoles

Homologous structures represent.

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Convergent evolution

Analogy

divergent evolution

Functional similarity

The ultimate source of change is.

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Evolution

Mutation

Genetic drift

Migration

An essay on the principle of population was published by

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Darwin

Wallace

Malthus

Linnaens

The change of frequency of alleles at locus that occur by chance is called.

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Mutation

Migration

Genetic drift

Selection

If all members of a population are homozygous for the same allele that allele is said to be

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Multiple allele

Jumping gene

Fixed in the gene

Perfect gene

Eukaryotes are thought to have first appeared about____billion years ago

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1.2

1.3

1.4

1.5

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Biology FSC Part 2 Chapter 24 Online MCQ's Test MCQs With Answers

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