The F1 progeny in monohybrid crosses by Mendel resembled:
1. | The parent exhibiting the dominant trait completely |
2. | The parent exhibiting recessive trait comp |
3. | The parent exhibiting the dominant trait partly |
4. | The parent exhibiting recessive traits partly |
In true breeding, the allelic pair of genes are:
1. | Homologous | 2. | Linked |
3. | Stable | 4. | Homozygous |
A graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross is called as:
1. | Forked line diagram | 2. | Punnett square |
3. | Pedigree chart | 4. | Idiogram |
A test cross is done to find out:
1. | Fitness of an organism |
2. | Genotype of a plant expressing dominant phenotype |
3. | The suitable parents for a Mendelian Cross |
4. | The hidden genotypic ratio of F2 phenotypes |
The expression of only one of the parental characters in a monohybrid cross in the F1, the expression of both in the F2 and the proportion of 3:1 obtained at the F2 can be explained by:
1. Law of Dominance
2. Law of segregation
3. Law of Independent Assortment
4. Two-factor interaction
The F2 genotypic ratio of a monohybrid cross is:
1. | 1 : 1 | 2. | 3 : 1 |
3. | 1 : 2 : 1 | 4. | 9 : 7 |
Which of the following is not true for the Law of Dominance given by Mendel?
1. | Characters are controlled by discrete units called factors. |
2. | Factors occur in pairs. |
3. | In a dissimilar pair of factors, one member of the pair dominates the other. |
4. | The alleles show blending at the time of fertilization. |