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NEET • BIOLOGY • PRINCIPLE OF INHERITANCE AND VARIATION
Principle of inheritance and variation practice · Mixed difficulty
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361
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361 of 365
Understanding
+4 | -1
The genetic deficiency of ADH-receptor leads to
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Correct option: D
Nephrogenic diabetes
The correct answer is C (Nephrogenic diabetes) because it is caused by the kidneys' inability to respond to ADH, due to a deficiency in ADH receptors.
362
Medium
362 of 365
Understanding
+4 | -1
Which of the given traits of pea plants selected by Mendel expresses itself only in homozygous condition?
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Correct option: B
White flower
Option B (White flower) is correct because in Mendel's pea plants, white flower color is a recessive trait and is only expressed in the homozygous recessive condition.
363
Medium
363 of 365
Application
+4 | -1
Normal vision woman whose mom was colour blind, marries a man who had a colour blind dad. What percentage of children of this couple will be colour blind?
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Correct option: B
0.5
Option B (0.5) is correct because the woman has a 50% chance of being a carrier, and if she is, there's a 50% chance her son will inherit the colorblindness allele.
364
Medium
364 of 365
Understanding
+4 | -1
The -generation offspring in a plant showing incomplete dominance, exhibit
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Correct option: D
Similar genotypic and phenotypic ratio of 1 : 2 : 1
Option D (Similar genotypic and phenotypic ratio of 1 : 2 : 1) is correct because in incomplete dominance, the genotypic and phenotypic ratios are the same due to the intermediate heterozygote phenotype.
365
Easy
365 of 365
Remembering
+4 | -1
When the chromosome number of a given organism has one additional chromosome in one of the homologous pairs, the addition is known as
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Correct option: A
Trisomy
Option A (Trisomy) is correct because trisomy refers to the condition where there is an extra copy of a chromosome in a homologous pair.
Revision notes and key takeaways
Review PRINCIPLE OF INHERITANCE AND VARIATION in your textbook or class notes, then use this set to check your understanding.
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