Genetics (Leaving Cert Agricultural Science): Flashcards
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DNA full name & function
DNA full name & function
Deoxyribonucleic Acid; carries hereditary information
Number of chromosomes in cattle
Number of chromosomes in cattle
60 chromosomes
Alleles definition
Alleles definition
Different versions or forms of the same gene
Genotype definition
Genotype definition
Animal's complete genetic makeup; combination of alleles
Phenotype definition
Phenotype definition
Observable traits displayed by an animal
When dominant alleles are expressed
When dominant alleles are expressed
Whenever they are present in the genotype
Homozygous definition
Homozygous definition
Identical alleles for a gene (AA or aa)
Law of Segregation states
Law of Segregation states
Alleles separate during gamete (sex cell) formation
Monohybrid cross phenotype ratio
Monohybrid cross phenotype ratio
3:1 (dominant to recessive)
Quantitative traits definition
Quantitative traits definition
Controlled by multiple genes; show continuous variation
