I. 100% parental combinations are found in ${{\rm{F}}_2}$-generation II. ${{\rm{F}}_2}$ phenotypic ratio is 3 : 1 in dihybrid cross III. Dihybrid test cross ratio is 1 : 1 in ${{\rm{F}}_2}$-generation IV. Linked genes tends to separate frequently Choose the correct options from the above given statements

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NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

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I. 100% parental combinations are found in

{\mathrm{F}_2}

-generation
II.

{\mathrm{F}_2}

phenotypic ratio is 3 : 1 in dihybrid cross
III. Dihybrid test cross ratio is 1 : 1 in

{\mathrm{F}_2}

-generation
IV. Linked genes tends to separate frequently
Choose the correct options from the above given statements

View answer and explanation

Correct option: D

I, II and III

Option D (I, II and III) is correct because the first three statements are generally true for linked genes and dihybrid crosses, while linked genes do not separate frequently unless crossing over occurs.

NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

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