Refer to the given figure of cross A and cross B and select the correct statement regarding them. Note: (+) sign in superscript represents dominant wild type alleles

In cross A , the strength of linkage between genes y and w is higher than the cross B genes w and m .

In cross A , the strength of linkage between genes y and w is lesser than the cross B genes w and m .

Both cross A genes y and w and cross B have the same strength of linkage.

The percentage of recombinants produced in cross A is higher than cross B .

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Mendel’s work was rediscovered by three scientists in the year

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Important Questions on Principles of Inheritance and Variation

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 48

Which three scientists independently rediscovered Mendel’s work?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 49

Chromosomal theory of inheritance was given by

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 50

Experimental verification of ‘chromosomal theory of inheritance’ was done by

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 51

Match Column I with Column II and select the correct option from the given codes.

	Column I		Column II
$(a)$	Multiple allelism	$(i)$	$T t \times t t$
$(b)$	Back cross	$(i i)$	$T t \times T T$
$(c)$	Test cross	$(i i i)$	Human blood groups
$(d)$	Crossing over	$(i v)$	Non-parental gene combination
$(e)$	Recombination	$(v)$	Non-sister chromatids

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 52

Genes located very close to one another on same chromosome tend to be transmitted together and are called as

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 53

True-breeding red-eyed Drosophila flies with plain thoraxes were crossed with pink-eyed flies with striped thoraxes.

\begin{matrix} \begin{matrix} R e d e y e \\ p l a i n t h o r a x \end{matrix} & \times & \begin{matrix} P i n k e y e \\ s t r i p e d t h o r a x \end{matrix} \end{matrix}

The F₁ flies were then test crossed against the double recessive.
The following F₂ generation resulted from the cross:

80	16	12	92
Red-eye	Red-eye	Pink eye	Pink eye
Plain thorax	Striped thorax	Plain thorax	Striped thorax

What percentage number of recombinants resulted from the test cross?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 54

Depending upon the distance between any two genes which is inversely proportional to the strength of linkage, cross overs will vary from

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 55

Refer to the given figure of cross A and cross B and select the correct statement regarding them.
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Note: (+) sign in superscript represents dominant wild type alleles

Mendel’s work was rediscovered by three scientists in the year

Important Questions on Principles of Inheritance and Variation

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