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A selections that acts to eleimainate on...

A selections that acts to eleimainate one exterme from an aray of phenotyps is

A

Disruptive

B

Directional

C

Stabilizing

D

Coevolultion

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The correct Answer is:
B
NA
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When selection acts to eliminate both extremes from an array of phenotypes, the frequency of intermediate type, which is already present in more, gets increased. This type of selection is called

Natural selection acts at

A single gene mutation affecting more than one phenotype is called

Directional selection usuallt acts to favour

A pure homozygous pea plant with yellow round seeds is crossed with a pure homozygous pea plant with green wrinkled seeds. Their progeny produced is allowed to undergo self - pollination. It produces four different phenotypes . Each phenotype is an expression of different types of genotypes. Select the correct option from the table.

Assertion (A ) : The long neck of giraffe is due to centripetal selection. Reason (R ) : During directional selection when the mean value of phenotype coincide with new optimum environmental conditions. Centripetal selection takes over.

ERRORLESS -PRINCIPLES OF INHERITANCE AND VARIATION-Principles Of Inheritance And Variation
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