What is the pattern of inheritance for polygenic traits?

1. Autosomal dominant pattern
2. X-linked recessive inheritance pattern
3. Mendelian inheritance pattern
4. Non-Mendelian inheritance pattern
Subtopic:  Polygenic Inheritance & Pleiotropy |
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With the help of given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in \(F_3\) generation.

1. 1/8
2. Zero
3. 1/4
4. 1/2
 
Subtopic:  Pedigree Analysis: Problem Solving |
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Genes R and Y follow independent assortment. If RRYY produce round yellow seed and rryy produce wrinkled green seeds, what will be then phenotypic ratio of the F2 generation?
1. Phenotypic ratio - 9 : 3 : 3 : 1
2. Phenotypic ratio - 9 :7
3. Phenotypic ratio - 1 : 2 : 1
4. Phenotypic ratio - 3 : 1
Subtopic:  Dihybrid Cross Analysis |
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Match List I and List II:
List I List II 
A. Two or more alternative forms of a gene I. Back Cross
B. Cross of F1 progeny with homozygous recessive parent II. Ploidy
C. Cross of F1 progeny with any of the parents            III. Allele
D. Number of chromosome sets in plant  IV. Test cross
Choose the correct answer from the options given below:
1. A-II, B-I, C-III, D-IV
2. A-III, B-IV, C-I, D-II
3. A-IV, B-III, C-II, D-I
4. A-I, B-II, C-III, D-IV
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding | Chromosomal Disorders |
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Which one of the following can be explained as the basis of Mendel's Law of dominance?
A: Out of one pair of factors, one is dominant and the other is recessive.
B: Alleles do not show any expression and both the characters appear as such in F2 generation.
C: Factors occur in pairs in normal diploid plants.
D: The discrete unit controlling a particular character is called factor.
E: The expression of only one of the parental characters is found in a monohybrid cross. 
Choose the correct answer from the options given below:
1. A, C, D and E only
2. B, C and D only
3. A, B, C, D and E
4. A, B and C only
Subtopic:  Monohybrid Cross: 1 |
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A pink flowered Snapdragon plant was crossed with red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?
1. Red flowered as well as pink flowered plants
2. Only pink flowered plants
3. Red, Pink as well as white flowered plants
4. Only red flowered plants 
Subtopic:  Law of Segregation and Law of Independent Assortment | Dominance Deviation from Mendel: 1 |
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In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of black seed plant, with which of the following genotype will you cross it?
1. bb
2. Bb
3. BB/Bb
4. BB
Subtopic:  Monohybrid Cross: Further Understanding |
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Match List I with List II:
List I List II
A.   Down's syndrome  I.  \(11^{\text {th }}\) chromosome
B.  \(\alpha\) -Thalassemia  II.  \(' \mathrm{X} '\) chromosome
C.  \(\beta\) -Thalassemia  III.  \(21^{\text {st }}\) chromosome
D.  Klinefelter's
syndrome
IV.  \(16^{\text {th }}\) chromosome

Choose the correct answer from the options given below:
1. A-II, B-III,C-IV, D-I 
2. A-III, B-IV,C-I, D-II 
3. A-IV, B-I, C-II, D-III 
4. A-I, B-II, C-III, D-IV
Subtopic:  Mendelian Disorders | Chromosomal Disorders |
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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 |
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ABO blood group is an example of 
1. Incomplete dominance 2. Multiple allele
3. Pleiotropy 4. Linkage
Subtopic:  Co-dominance |
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