Non-disjunction in meiosis results in:
1. trisomy
2. normal diploid
3. gene mutation
4. None of these

Subtopic:  Non - Disjunction & Aneuploidy |
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AB blood group shows:
1. Codominance
2. incomplete dominance
3. polygenic inheritance
4. pleiotropy
Subtopic:  Monohybrid Cross: Further Understanding |
 91%
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Gynaecomastia is present in which syndrome?
1. Turner
2. Klinefelter
3. Down
4. None
Subtopic:  Sex Aneuploidy - Turner & Klinefelter Syndrome |
 88%
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Which trait is shown by given pedigree analysis?

1. Autosomal dominant
2. X-Linked dominant
3. Autosomal recessive
4. X-Linked recessive
Subtopic:  Pedigree Analysis: Problem Solving | Pedigree Analysis: More Examples |
 63%
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AB blood group shows :
1. Co-dominance
2, Incomplete dominance
3. Polygenic inheritance
4. Pleiotropy
Subtopic:  Co-dominance |
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From NCERT
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The trisomy for 21st chromosome is called
1. Down's syndrome
2. Turner’s syndrome
3. Sickle cell anaemia
4. Klinefelter's syndrome

Subtopic:  Non - Disjunction & Aneuploidy | Sex Aneuploidy - Turner & Klinefelter Syndrome |
 86%
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Chromosome complement with 2n-1 is called? 
1. monosomy 
2. nullisomy 
3. trisomy 
4. tetrasomy 
Subtopic:  Non - Disjunction & Aneuploidy |
 77%
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A man of blood group-A marries a woman of blood group-AB, which type of progeny would indicate that man is heterozygous? 
1. O 
2. B 
3. A 
4. AB
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
 59%
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Chromosomes complement with \(2n-1\) is called as: 
1. monosomy 
2. nullisomy 
3. trisomy 
4. tetrasomy
Subtopic:  Non - Disjunction & Aneuploidy |
 87%
From NCERT
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A man of ‘A’ blood group marries a woman of ‘AB’ blood group. Which type of progeny would indicate that man is heterozygous?
1. O
2. B
3. A
4. AB
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
 79%
From NCERT
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