#7.1.1
The genotype is the genetic constitution of an organism.
#7.1.2
The phenotype is the expression of this genetic constitution and its interaction with the environment.
#7.1.3
There may be many alleles of a single gene.
#7.1.4
Alleles may be dominant, recessive or codominant.
#7.1.5
In a diploid organism, the alleles at a specific locus may be either homozygous or heterozygous.
#7.1.6
The use of fully labelled genetic diagrams to interpret, or predict, the results of:
- monohybrid and dihybrid crosses involving dominant, recessive and codominant alleles
- crosses involving sex-linkage, autosomal linkage, multiple alleles and epistasis.
#7.1.7
Use of the chi-squared (\(\chi^2\)) test to compare the goodness of fit of observed phenotypic ratios with expected ratios.