SB3f - Mendel Flashcards
What is the genotype of someone?
The alleles the person has
What is the phenotype of someone
The characteristic displayed by the alleles
What is a dominant allele
The allele that will always be expressed in the
phenotype e.g. D
What is a recessive allele
The allele that will only be expressed in the phenotype
if homozygous e.g. d
What is meant when someone has homozygous alleles
Both alleles are the same e.g. dd or DD
What is meant when someone has heterozygous alleles
One dominant and one recessive allele present e.g. Dd
What is meant by a allele
An alternative copy of a gene
What is meant by a chromosome
A structure containing DNA and protein that you inherit
from your parents. Contains many genes
What is a gene
A small section of DNA that codes for a particular
characteristic
What does DNA stand for?
Stands for DeoxyriboNucleic Acid
