Question
Differentiate between multiple allelism and pleiotropy with the help of an example of each.
✓
Answer
|
S.No
|
Multiple allelism
|
Pleiotropy
|
|
1.
|
It is the phenomenon in which a gene for a trait exists in more than two allelic forms.
|
It is the phenomenon of the ability of a single gene to have more than one phenotypic effect.
|
|
2.
|
The alleles can show codominance. e.g. the gene for human blood groups exists in three allelic forms, $1^A, 1^B$ and $i.$
|
Codominance is not exhibited. e.g. a single gene in garden pea controls seed shape and size of starch grains.
|
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
- Select the homologous structures from the combinations given below:
- Forelimbs of whales and bats.
- Tuber of potato and sweet potato.
- Eyes of octopus and mammals.
- Thorns of Bougainvillea and tendrils of Cucurbita.
- State the kind of evolution they represent.
Proliferative phase is also called follicular phase.
Give examples to prove that microbes release gases during metabolism.
Explain the following in context of cancer:
Malignant tumour.
Malignant tumour.
- `Expand IUD.
- Why is hormone releasing IUD considered a good contraceptive to space children?
Can gamma rays used for crop improvement programmes prove to be harmful for health? Discuss.
Mention the names of three groups of plants for which Psilophyton is the ancestor.
State the use of Biodiversity in modern agriculture.
Enlist the steps of controlled cross pollination. Would emasculation be needed in a cucurbit plant? Give reasons for your answer.
Identify the labelled structures on the following diagram of translation.
Part A is the ………………
Part B is the ………………
Part C is the ………………