A population of finch birds with medium sized beaks colonizes an island with plants producing medium and large sized seeds. After a disease wipes out all the plants with medium sized seeds, what is most likely to happen to the finches?

Their beaks will not change at all

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 53

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IMPORTANT

Earn 100

Match the following columns.

Column I Column II

A Genetic drift 1 Change in the population’s allele frequency due to chance alone

B Natural selection 2 Difference in survival individuals

C Gene flow 3 Immigration or emigration changes the allele frequency

D Mutation 4 Source of the new alleles

Column I	Column II
A	Genetic drift	1	Change in the population’s allele frequency due to chance alone
B	Natural selection	2	Difference in survival individuals
C	Gene flow	3	Immigration or emigration changes the allele frequency
D	Mutation	4	Source of the new alleles

100% studentsanswered this correctly

Important Questions on Evolution

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 54

Which of the following is incorrect regarding the work of Hugo de Vries?

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 55

Match the following columns.

	Column I		Column II
A	Analogous organs	1	Ontogeny repear phylogeny
B	Miller and Urey	2	Experiment (Chemical evolution)
C	Oparin and Haldane	3	Chemical evolution (theory)
D	Human embryo has gills	4	Wings of birds and butterfly

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 56

Identify the wrong statement regarding genetic drift.

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 57

Which of the following structures is homologous to the wing of a bird?

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 58

Which of the following does not favour Lamarckian concept of inheritance of acquired characters?

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 59

Read the following statements and choose the incorrect one among them.

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 60

Mark the correct statements.
I. Fitness of individuals means reproductive fitness.
II. Homology in vertebrate brain indicates common ancestry.
III. Theory of acquired character was given by de Vries.
IV. After industrialization, the white moth population decreased due to predators.
The correct option is

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Biology Crash Course NEET>Chapter 29 - Evolution>Level 2>Q 61

According to one of the most widely accepted theories, earth’s atmosphere before origin of life consisted of a mixture of