If the female has three boys in her first three pregnancy. What are the chances of getting female child this time?
(1) 25%
(2) 50%
(3) 75%
(4) 20%
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant type offspring. This indicates
(1) chromosomes failed to separate during meiosis
(2) the two genes are linked and present on the same chromosome
(3) both of the characters are controlled by more than one gene
(4) the two genes are located on two different chromosomes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology‘When two pairs of traits are combined in a hybrid, segregation of one pair of characters is independent of the other pair of characters’. This is the statement of:
1. Law of Dominance
2. Law of segregation
3. Law of Independent Assortment
4. Law of Linkage
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn individual with AaBb genotype is producing four types of gametes as AB, aB, Ab and ab by meiosis. If the frequency of these gametes is 25% each then, it explains
1. Incomplete linkage
2. Mutations
3. Independent assortment
4. Complete linkage
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLaw of Independent Assortment is not applicable to
(1) Linked genes
(2) Genes on different chromosomes
(3) Distantly located gene
(4) both (2) and (3)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is probability of homozygous individuals for both characters in generation of a dihybrid cross?
1. 1/2
2. 3/4
3. 1/3
4. 1/4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
When Mendel self hybridized F1 progeny of a dihybrid cross between pure Yellow Round seeded plants and Green Wrinkled plants, he observed that yellow and green colour segregated in a ratio of:
(1) 1 : 1
(2) 3 : 1
(3) 9 : 3 : 3 : 1
(4) 1 : 2 : 1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology