Reproduction & Genetics Flashcards
What is the study of heredity or the inheritance of genes from parents?
Genetics
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What are genetics?
The study of heredity or the inheritance of genes from parents.
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What are genomics?
A branch of genetics that involves characterization of all the genes and DNA sequences of a specific organism.
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What is the branch of genetics that involves characterization of all the genes and DNA sequences of a specific organism?
Genomics
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Name a genetically controlled trait which can be used effectively in horse production.
Coat color
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True or False: Conformation, athletic ability, and intelligence which are the most commonly desired traits in horses, are difficult to measure on a genetic basis.
True
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What are two contributing factors to the overall personality and physical features of the horse?
Genetics and the environment.
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Genetics and the environment are two contributing factors to the overall personality and physical features of the horse. Name two factors considered to be environmental.
Feeding, training, interaction with other horses, etc.
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Genetics and the environment are two contributing factors to the overall personality and physical features of the horse. What does the genetic influence include?
The characteristics passed from one parent to their offspring.
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Every cell in the body contains genetic material as DNA stored where?
Nucleus
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Every cell in the body contains genetic material stored in the nucleus as what?
DNA
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Genetic material, or DNA, is contained within what long, slender, and thread-like structures that are paired?
Chromosomes
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What are chromosomes?
Long, slender, threadlike structures that are paired within the cell’s nucleus.
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True or False: The pairs of each chromosome are not identical.
True
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True or False: The pairs of each chromosome are identical.
False
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The pairs of each chromosome are not identical. Explain why.
One chromosome is acquired from the dam (mare) and the other from the sire (stallion).
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What is the basic unit of inheritance?
The gene
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What are the holders for the basic unit of inheritance?
Chromosomes
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What are the holders for genes?
Chromosomes
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Genes are located where along the chromosomes?
The locus (loci when plural)
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Where are genes located along the chromosomes?
The locus (loci when plural)
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What are loci?
The locations where genes are located along the chromosome.
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What is a locus?
The location where genes are located along the chromosome.
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How many pairs of chromosomes does a horse have?
32
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