Inheritance of Two Genes
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BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342293 Three yellow and round pea seeds labelled A,B,C were taken and grown into plants. The plants were crossed to a plant grown from green wrinkled pea. 100 seeds obtained from each cross were sorted into phenotypic classes as follows: A: 100 yellow round, B: 51 yellow round 49 green round, \(\mathrm{C}: 24\) yellow round, 26 yellow wrinkled, 25 green round, 25 green wrinkled. The genotype of plant \(C\) would be

1 YyRr
2 YYRR
3 YYRr
4 YyRR
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342294 Mendelian recombinations are due to :

1 Independent assortment
2 Mutation
3 Pleiotrophy
4 Crossing over
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342295 Match the columns I and II.
Column I
Column II
A
Monohybrid phenotype
P
3:1
B
Monohybrid genotype
Q
1:2:1:2:4:2:1: 2:1
C
Dihybrid genotype
R
1:2:1
D
Dihybrid phenotype
S
9:3:3:1

1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342296 Some characters did not assort independently. Later researchers found it to be due to

1 Linkage
2 Dominance of one trait over the other
3 Crossing over
4 Amitosis
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342297 In dihybrid cross. When plants (RrYy) are self-hybridised, the ratio of segregation of yellow and green in is:

1 \(1: 2: 1\)
2 \(3: 1\)
3 \(9: 3: 3: 1\)
4 \(1: 1: 1: 1\)
KCET - 2017
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BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342293 Three yellow and round pea seeds labelled A,B,C were taken and grown into plants. The plants were crossed to a plant grown from green wrinkled pea. 100 seeds obtained from each cross were sorted into phenotypic classes as follows: A: 100 yellow round, B: 51 yellow round 49 green round, \(\mathrm{C}: 24\) yellow round, 26 yellow wrinkled, 25 green round, 25 green wrinkled. The genotype of plant \(C\) would be

1 YyRr
2 YYRR
3 YYRr
4 YyRR
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342294 Mendelian recombinations are due to :

1 Independent assortment
2 Mutation
3 Pleiotrophy
4 Crossing over
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342295 Match the columns I and II.
Column I
Column II
A
Monohybrid phenotype
P
3:1
B
Monohybrid genotype
Q
1:2:1:2:4:2:1: 2:1
C
Dihybrid genotype
R
1:2:1
D
Dihybrid phenotype
S
9:3:3:1

1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342296 Some characters did not assort independently. Later researchers found it to be due to

1 Linkage
2 Dominance of one trait over the other
3 Crossing over
4 Amitosis
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342297 In dihybrid cross. When plants (RrYy) are self-hybridised, the ratio of segregation of yellow and green in is:

1 \(1: 2: 1\)
2 \(3: 1\)
3 \(9: 3: 3: 1\)
4 \(1: 1: 1: 1\)
KCET - 2017
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BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342293 Three yellow and round pea seeds labelled A,B,C were taken and grown into plants. The plants were crossed to a plant grown from green wrinkled pea. 100 seeds obtained from each cross were sorted into phenotypic classes as follows: A: 100 yellow round, B: 51 yellow round 49 green round, \(\mathrm{C}: 24\) yellow round, 26 yellow wrinkled, 25 green round, 25 green wrinkled. The genotype of plant \(C\) would be

1 YyRr
2 YYRR
3 YYRr
4 YyRR
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342294 Mendelian recombinations are due to :

1 Independent assortment
2 Mutation
3 Pleiotrophy
4 Crossing over
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342295 Match the columns I and II.
Column I
Column II
A
Monohybrid phenotype
P
3:1
B
Monohybrid genotype
Q
1:2:1:2:4:2:1: 2:1
C
Dihybrid genotype
R
1:2:1
D
Dihybrid phenotype
S
9:3:3:1

1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342296 Some characters did not assort independently. Later researchers found it to be due to

1 Linkage
2 Dominance of one trait over the other
3 Crossing over
4 Amitosis
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342297 In dihybrid cross. When plants (RrYy) are self-hybridised, the ratio of segregation of yellow and green in is:

1 \(1: 2: 1\)
2 \(3: 1\)
3 \(9: 3: 3: 1\)
4 \(1: 1: 1: 1\)
KCET - 2017
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BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342293 Three yellow and round pea seeds labelled A,B,C were taken and grown into plants. The plants were crossed to a plant grown from green wrinkled pea. 100 seeds obtained from each cross were sorted into phenotypic classes as follows: A: 100 yellow round, B: 51 yellow round 49 green round, \(\mathrm{C}: 24\) yellow round, 26 yellow wrinkled, 25 green round, 25 green wrinkled. The genotype of plant \(C\) would be

1 YyRr
2 YYRR
3 YYRr
4 YyRR
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342294 Mendelian recombinations are due to :

1 Independent assortment
2 Mutation
3 Pleiotrophy
4 Crossing over
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342295 Match the columns I and II.
Column I
Column II
A
Monohybrid phenotype
P
3:1
B
Monohybrid genotype
Q
1:2:1:2:4:2:1: 2:1
C
Dihybrid genotype
R
1:2:1
D
Dihybrid phenotype
S
9:3:3:1

1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342296 Some characters did not assort independently. Later researchers found it to be due to

1 Linkage
2 Dominance of one trait over the other
3 Crossing over
4 Amitosis
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342297 In dihybrid cross. When plants (RrYy) are self-hybridised, the ratio of segregation of yellow and green in is:

1 \(1: 2: 1\)
2 \(3: 1\)
3 \(9: 3: 3: 1\)
4 \(1: 1: 1: 1\)
KCET - 2017
Join With Us for More Updates
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342293 Three yellow and round pea seeds labelled A,B,C were taken and grown into plants. The plants were crossed to a plant grown from green wrinkled pea. 100 seeds obtained from each cross were sorted into phenotypic classes as follows: A: 100 yellow round, B: 51 yellow round 49 green round, \(\mathrm{C}: 24\) yellow round, 26 yellow wrinkled, 25 green round, 25 green wrinkled. The genotype of plant \(C\) would be

1 YyRr
2 YYRR
3 YYRr
4 YyRR
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342294 Mendelian recombinations are due to :

1 Independent assortment
2 Mutation
3 Pleiotrophy
4 Crossing over
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342295 Match the columns I and II.
Column I
Column II
A
Monohybrid phenotype
P
3:1
B
Monohybrid genotype
Q
1:2:1:2:4:2:1: 2:1
C
Dihybrid genotype
R
1:2:1
D
Dihybrid phenotype
S
9:3:3:1

1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342296 Some characters did not assort independently. Later researchers found it to be due to

1 Linkage
2 Dominance of one trait over the other
3 Crossing over
4 Amitosis
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION

342297 In dihybrid cross. When plants (RrYy) are self-hybridised, the ratio of segregation of yellow and green in is:

1 \(1: 2: 1\)
2 \(3: 1\)
3 \(9: 3: 3: 1\)
4 \(1: 1: 1: 1\)
KCET - 2017