6.1.2 - Patterns of Inheritance

Question 1

Genotype

Answer 1

Allele combination leading to a specific phenotype

Question 2

Discontinuous variation

Answer 2

Qualitative differences 
Clearly distinguishable categories (categorical)
Monogenic inheritance 
One/two genes 
An allele has a large effect

Question 3

Continuous variation

Answer 3

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

Question 4

Monogenic inheritance

Answer 4

One gene w/ 2 or more alleles

Question 5

Monohybrid cross

Answer 5

1 gene, 2 alleles (r and d)

Question 6

Drawing genetic crosses

Answer 6

Parental genotype
Parental phenotype
Parental gametes
F1 ratio for genotype then phenotypes

Question 7

Codominant inheritance

Answer 7

Involves more than one dominant allele

Question 8

Multiple alleles genetic crosses

Answer 8

1 trait
1 gene
>2 alleles