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Which condition is caused by mutations that involve entire chromosome rather than a gene?

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Important Questions on Principles of Inheritance and Variation

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 36
Pick out the correct statements.

I. Haemophilia is a sex-linked recessive disease.
II. Down's syndrome is due to aneuploidy.
III. Phenylketonuria is an autosomal dominant genetic disorder.
IV. Phenylketonuria is an autosomal recessive genetic disorder.
V. Sickle cell anaemia is an X-linked recessive disorder.
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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 37
This pedigree is of a rare trait, in which children have extra fingers and toes. Which one of the following patterns of inheritance is consistent with this pedigree?
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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 38
In which of the following, the Law of segregation can be associated?
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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 39
The most striking example of point mutation is found in a disease called:
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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 40
A woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be ----------------.
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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 41
In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt :-
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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 42

Choose the correct option about the figure given below:

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 43
In a certain plant species, red flower colour is incompletely dominant to white flower colour (the heterozygote is pink) and tall stems are completely dominant to dwarf stems. If a tall pink plant (TtRr) is crossed with a tall white plant (TTrr), which one of the following types of plants would be produced in the offsprings?