Genetic diagrams Flashcards
What are alleles?
Different versions of the same gene
What do genes control
The characteristics you inherit
What does it mean when the alleles are different?
You have instructions for two different versions of characteristic, but you only show one version of the two. The one that appears is the dominant allele. The other one is said to be recessive.
What is your genotype?
The alleles that you have
What is your phenotype?
The characteristics the alleles produce
What type of letter represents a dominant allele?
Upper case
What type of letter represents a recessive allele?
Lower case
What does homozygous mean?
You have 2 of the same allele for that particular gene e.g. CC or cc
What does heterozygous mean?
You have 2 different alleles for that particular gene e.g. Cc
What is meant by codominant alleles?
Neither allele is recessive, so you show characteristics from both e.g. blood type AB rather than A or B.
What is monohybrid inheritance?
The inheritance of a single characteristic
What are monohybrid crosses used to show?
How recessive and dominant traits for a single characteristic are inherited.
