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Given diagram shows a pair of homologous chromosomes during meiosis.
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Maximum crossing over will occur between genes

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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 61
Which of the following is suitable for experiment on linkage?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 62
Mendel’s law of independent assortment does not hold true for the genes that are located closely on
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 63
If linkage was known at the time of Mendel then which of the following laws, he would not have been able to explain?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 64
In maize, colored endosperm C is dominant over colourless c ; and full endosperm R is dominant over shrunken r. When a dihybrid of F1 generation was test crossed, it produced four phenotypes in the following percentage:
Coloured full - 48%
Coloured shrunken - 5%
Colourless full - 7%
Colourless shrunken - 40%
From this data, what will be the distance between two non-allelic genes?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 65
Which of the following are reasons for Mendel’s success?
(i) Usage of pure lines or pure breeding varieties
(ii) Consideration of one character at a time
(iii) Maintenance of statistical records of experiments
(iv) Knowledge of linkage and incomplete dominance
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 66
In polygenic inheritance
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 67
If a polygenic inheritance is observed by three pair of genes  then the phenotypic ratio in F2 generation will be-
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 28 - Principles of Inheritance and Variation>MCQS CORNER>Q 68
What proportion of the offspring obtained from cross AABBCC×AaBbCc will be completely heterozygous for all the genes segregated independently?