Quiz #6 Part 2
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Heterozygous definition
Two different alleles for a trait - Aa
Allele defintion
The different forms of genes for one trait
An allele can be _____ or _____
Dominant or recessive
Dominant trait definition
A trait that always shows up when present
Recessive trait definition
Trait is hidden when with a dominant allele
Homozygous definition
Two of the same alleles for one trait - AA or aa
Genotype definition
The allele combination (genes)
Genes definition
Factors that control traits - found in DNA
What is polygenic inheritance?
Many genes control most traits
Phenotype definition
How an organism looks
Hybrid definition
Opposite of purebred
What is incomplete dominance?
Both alleles show up because neither are strong enough to show up completely - A red tulip (RR) mixes with a white tulip (WW) and the new tulips are pink (RW)
Trait definition
Feature or characteristic
Probability definition
A number that describes an event’s likelihood
Genetics definition
Scientific study of heredity
Heredity definition
The passing of genetic information
Gregor Mendel
Austrian monk that first discovered the rules of inheritance in the 1800s by studying pea plants
Codominance definition
Alleles are equally dominant so both show up - A white feathered chicken (F^W F^W) mixes with a red feathered chicken (F^R F^R) and the new chickens are both red and white (mixed - F^W F^R)