11 Questions
What is the chromosomal composition of a mule?
32 chromosomes from the mother and 31 chromosomes from the father
Why are mules unable to reproduce with other mules?
The 63 chromosomes inherited from the parents cannot pair off evenly during meiosis
What traits contribute to making mules the best combination of both species?
Strength from the horse and intelligence from the donkey
What is the main purpose of outcrossing in animal breeding?
To mate animals within the same breed but with no relationship to overcome inbreeding depression
In genetics studies, what is the purpose of backcrossing?
To isolate certain characteristics in a related group of animals or plants
What is the key difference between backcrossing and linebreeding?
Backcrossing involves mating a crossbred animal with one of its parents, while linebreeding involves repeated back crossing to one outstanding ancestor
What is the purpose of linebreeding in animal breeding?
To emphasize the characteristics of an outstanding ancestor by repeated back crossing
What is the primary purpose of outcrossing in animal breeding?
To overcome the negative effects of inbreeding depression
How does backcrossing differ from linebreeding?
Backcrossing is the repeated back crossing to one outstanding ancestor, while linebreeding involves mating a crossbred animal with one of its parents
In genetics studies, what is the main purpose of backcrossing?
To reintroduce a specific gene from one parent into the gene pool of the other parent
What is the purpose of linebreeding in animal breeding?
To produce offspring with enhanced contribution from an outstanding ancestor
This quiz explores the genetics and reproduction of mules, which are created by mating a female horse and a male donkey. It delves into the combination of strength and intelligence that mules inherit, and their inability to reproduce with other mules due to an uneven pairing of chromosomes during meiosis.
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