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 |
The units of inheritance according to Mendel were ‘factors’. Today these factors are known as:
1. | Gametes | 2. | DNA |
3. | Genes | 4. | RNA |
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 |
A genetic cross between homozygous individuals but with different alleles for a single gene of interest is called as:
1. | A reciprocal cross | 2. | Monohybrid cross |
3. | Dihybrid cross | 4. | Test cross |
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 |
What is the ratio of a typical monohybrid test cross?
1. | 2 : 1 | 2. | 3 : 1 |
3. | 1: 2 : 1 | 4. | 1 : 1 |
What is the F2 phenotypic ratio in cases of incomplete dominance?
1. | 1 : 1 | 2. | 3 : 1 |
3. | 1 : 2 : 1 | 4. | 1 : 1 |