- 1(current)
Q. No.A true breeding red striped tree frog is crossed with a true breeding plain green frog. All progeny have red stripes. This is because:
| 1. | Stripes are dominant to plain green coloration. |
| 2. | Striped frogs are camouflaged better. |
| 3. | Plain green frogs are easily predated upon. |
| 4. | Striped frogs are more common. |
A gene is said to be dominant if:
| 1. | It expresses its effect only in the homozygous stage |
| 2. | It expresses only in heterozygous condition |
| 3. | It expresses both in homozygous and heterozygous conditions |
| 4. | It is never expressed in any condition |
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.
Black coat colour is a dominant trait while the albino trait is recessive in mice. You want to raise only black-coat mice as they appear more graceful to you. You crossed black mice with albino mice thinking that all progeny will be black based on dominance. You felt disappointed when your cross yielded only three black-coat mice out of seven. This is because you incorrectly:
| 1. | assumed that black alleles were more common than white. |
| 2. | assumed that white alleles were more common than black. |
| 3. | assumed that my black mouse was true-breeding. |
| 4. | assumed that my white mouse was true-breeding. |
A cross that involves the breeding of a phenotypically dominant individual with a phenotypically recessive individual, in order to determine the zygosity of the former by analyzing proportions of offspring phenotypes is termed as a:
| 1. | Monohybrid cross | 2. | Test cross |
| 3. | Back cross | 4. | Reciprocal cross |
- 1(current)
Q. No.
© 2024 GoodEd Technologies Pvt. Ltd.