Column I | Column II | ||
A | Homozygous | P | having two different alleles of a particular gene or genes |
B | Heterozygous | Q | having two identical alleles of a particular gene or genes |
C | Homologous | R | not having the same alleles or genes in the same order of arrangement |
D. | Heterologous | S | having the same alleles or genes in the same order of arrangement |
A | B | C | D | |
1. | P | Q | R | S |
2. | S | R | Q | P |
3. | Q | P | S | R |
4. | P | Q | S | R |
1. | 6 and 8 | 2. | 8 and 9 |
3. | 4 and 16 | 4. | 8 and 27 |
1. | 100 % | 2. | Less than 50 % |
3. | 25 % | 4. | 0 |
1. | Autosomal recessive | 2. | Autosomal dominant |
3. | Sex-linked recessive | 4. | Sex-linked dominant |
1. | ¼ | 2. | 2/3 |
3. | ½ | 4. | ¾ |
1. | 1 : 1 | 2. | 3 : 1 |
3. | 1 : 1 : 1 : 1 | 4. | 9 : 1 |
Assertion (A): | The genetic sex of an individual with Klinefelter's syndrome is female |
Reason (R): | Only X-chromosome is present in their genotype |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
3. | (A) is True but (R) is False |
4. | Both (A) and (R) are False |
1. | Autosomal recessive | 2. | X-linked recessive |
3. | Autosomal dominant | 4. | X-linked dominant |
1. | The karyotype is of an individual suffering from Down’s syndrome |
2. | The number of autosomes seen is 43 |
3. | The genetic sex of this individual must be female |
4. | The fertility will be maintained in this individual |