Sex-Limited Characters: Examples

Question Question

Semen production, milk production, and egg production are examples of which type of sex-associated inheritance?

Select an answer

Sex-linked characters
Sex-limited characters
Sex-influenced characters
Holandric characters

Sex-Limited Characters: Examples

Semen production, milk production, and egg production are examples of which type of sex-associated inheritance?

Options

Sex-linked characters
Sex-limited characters ✓
Sex-influenced characters
Holandric characters

Correct Answer: B

Explanation in English

Correct Answer: Sex-Limited Characters

From Table 6 in the notes: Sex-limited traits have their genes on autosomes, but are expressed in only one sex due to the influence of sex hormones.

Sex-Limited Examples (from notes)

Semen production (expressed only in males)
Milk production (expressed only in females)
Egg production in poultry (expressed only in females)
Baldness in humans
Secondary sexual characters
Responsible for sexual dimorphism

Critical Breeding Implication

Because a sire (bull/ram) cannot express milk yield or egg production, individual selection cannot be used to select sires for sex-limited traits. The best method is progeny testing — evaluating a sire based on the performance of his daughters.

BLUP

The most recent and best method of sire evaluation for sex-limited traits is BLUP (Best Linear Unbiased Prediction).

📚 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.

Share this Question

Anvi Classes

Related Questions