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Q. No.

Match the terms in Column-I with their description in Column-II and choose the correct option. 

Column-I Column-II
A. Dominance 1. Many govern a single character
B. Codominance 2. In a heterozygous organism, only one allele expresses itself
C. Pleiotropy 3. In a heterozygous organism, both alleles express themselves fully
D. Polygenic inheritance 4. A single gene influences many characters
 
A B C D
1. 2 3 4 1
2. 4 1 2 3
3. 4 3 1 2
4. 2 1 4 3
Subtopic:  Polygenic Inheritance & Pleiotropy | Co-dominance |
 91%
Level 1: 80%+
NEET - 2016
Hints
As per \(\mathrm{ABO}\) blood grouping system, the blood group of father is \(\mathrm{B^+}\), mother is \(\mathrm{A^+}\) and child is \(\mathrm{O^+}\). Their respective genotype can be 
A. \(\mathrm{I^{B}i / I^{A}i / ii}\)
B. \(\mathrm{I}^{\mathrm{B}} \mathrm{I}^{\mathrm{B}} / \mathrm{I}^{\mathrm{A}} \mathrm{I}^{\mathrm{A}} / \mathrm{ii}\)
C. \(\mathrm{I^AI^B/iI^A/I^Bi}\)
D. \(\mathrm{I^{A}i / I^{B}i / I^{A}i}\)
E. \(\mathrm{i I^B / i I^A / I^A I^B}\)
Choose the most appropriate answer from the options given below: 
1. B only 
2. C & B only 
3. D & E only 
4. A only 
Subtopic:  Co-dominance |
 67%
Level 2: 60%+
NEET - 2024
Hints
ABO blood group is an example of 
1. Incomplete dominance 2. Multiple allele
3. Pleiotropy 4. Linkage
Subtopic:  Co-dominance |
 86%
Level 1: 80%+
NEET - 2024
Hints
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The mother has A+ blood group, the father has B+ and the child is A+. What can be possible genotypes of all three, respectively?
A. IAIA | IBi | IBi
B. IAIA | IBi | IAi
C. IB i IA IA| IA IB
D. IAIA | IBIB | IAi
E. IA | IBi | IAi

Choose the correct answer from the options given below:
1. C and D
2. D and A
3. A and B
4. B and E
Subtopic:  Co-dominance |
 80%
Level 1: 80%+
NEET - 2024
Hints
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