6.1.2 - Patterns of Inheritance Flashcards
1
Q
Genotype
A
Allele combination leading to a specific phenotype
2
Q
Discontinuous variation
A
Qualitative differences Clearly distinguishable categories (categorical) Monogenic inheritance One/two genes An allele has a large effect
3
Q
Continuous variation
A
Quantitative differences Phenotypic diff have a wide range of variation in a pop. (sig affected by environment) Each allele has a small effect Polygenic inheritance Large number of diff genes involved
4
Q
Monogenic inheritance
A
One gene w/ 2 or more alleles
5
Q
Monohybrid cross
A
1 gene, 2 alleles (r and d)
6
Q
Drawing genetic crosses
A
Parental genotype
Parental phenotype
Parental gametes
F1 ratio for genotype then phenotypes
7
Q
Codominant inheritance
A
Involves more than one dominant allele
8
Q
Multiple alleles genetic crosses
A
1 trait
1 gene
>2 alleles