A trait controlled by many genes, each with a small effect, is described as:
Correct answer: B. A polygenic trait
- A. A sex-linked trait
- B. A polygenic trait
- C. A monogenic trait
- D. A mitochondrial trait
Explanation
Polygenic traits are influenced by many genes and usually show continuous variation, as seen in growth, milk yield and fertility. A monogenic trait is mainly controlled by one gene.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Animal Breeding and Genetics
Covers genes, chromosomes, inheritance, genetic variation, mutations, heritability and quantitative traits in livestock. It also includes selection methods, breeding systems, inbreeding, crossbreeding, heterosis and evaluation of traits such as growth, milk yield, fertility and disease resistance.
Practise Animal Breeding and Genetics
60 free Animal Breeding and Genetics MCQs from Veterinary Science, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Veterinary Science questions like this
Veterinary Science is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Animal Breeding and Genetics questions
In animal breeding, genotype by environment interaction occurs when:
According to Mendel's law of segregation, the two alleles of a gene separate during:
Broad-sense heritability of a quantitative trait includes variance caused by which genetic effects?
Genes located in mitochondrial DNA are usually transmitted to offspring mainly through the:
The maximum observable recombination frequency between two loci is generally:
Inbreeding depression is most commonly expressed as reduced: