Classification of Barred Plumage and Broodiness in Poultry
Barred plumage in poultry, broodiness in poultry, rapid and slow feathering, and cryptorchidism in horses are examples of:
- Sex-limited inheritance
- Sex-influenced inheritance
- Sex-linked inheritance — Correct Answer
- Autosomal inheritance
Explanation:
Correct Answer: Sex-linked inheritance
Barred plumage, broodiness, feather growth rate (rapid/slow feathering), and cryptorchidism in horses are all examples of sex-linked inheritance — their genes are located on sex chromosomes.
Comparison of Sex-Related Trait Types
| Type | Gene Location | Examples |
|---|---|---|
| Sex-limited traits | Autosome | Milk production, egg production, semen production, secondary sexual characters |
| Sex-influenced traits | Autosome | Baldness in humans, polled/horned condition in Dorset sheep |
| Sex-linked traits | Sex chromosome (X or Y) | Barred plumage, broodiness, feather growth (X-linked); Hypertrichosis, TDF (Y-linked) |
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
