Q. No.In the case of co-dominance, the F1 generation resembles:
1.
Dominant parent
2.
Recessive parent
3.
Both the parents
4.
None of the parents
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The point mutation in sickle cell anaemia leads to a change in the codon. Identify the correct change:
| 1. | UGA to UAA | 2. | GUG to GAG |
| 3. | GAG to GUG | 4. | UAA to UGA |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Genes that code for a pair of contrasting traits or slightly different forms of the same gene are known as:
| 1. | Alleles | 2. | Loci |
| 3. | Cistrons | 4. | Introns |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The two alleles of a gene pair are located on:
| 1. | The same chromosome. |
| 2. | Different chromosomes. |
| 3. | Homologous sites on homologous chromosomes. |
| 4. | Homologous sites on heterologous chromosomes. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Morgan, in his experiment on fruit flies, found that the genes white and yellow were very tightly linked and showed:
| 1. | 50 % recombination | 2. | 37.2 % recombination |
| 3. | 12.5 % recombination | 4. | 1.3 % recombination |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
What is the mode of inheritance of phenylketonuria?
| 1. | Autosomal recessive | 2. | Autosomal dominant |
| 3. | Sex linked recessive | 4. | Sex linked dominant |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following is not a feature of Down’s Syndrome?
| 1. | It is caused by a non-disjunction in an autosome. |
| 2. | The affected individual has a trisomy of chromosome 21. |
| 3. | The affected individual has a characteristic simian palmar crease. |
| 4. | The mental development of the affected individual is normal. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Pedigree analysis is used for genetic analysis in humans rather than conventional genetic methods because:
| I: | Choice matings are not possible. |
| II: | The number of progeny is limited. |
Of the two statements:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
A plant with the genotype Tt should be called:
| 1. | Heterologous | 2. | Hemizygous |
| 3. | Heterozygous | 4. | Dihybrid |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
What is F2 phenotypic ratio in a dihybrid cross?
| 1. | 1 : 1 | 2. | 3 : 1 |
| 3. | 9 : 3 : 3 : 1 | 4. | 1 : 1 : 1: 1 |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
© 2025 GoodEd Technologies Pvt. Ltd.