1.3 DNA - Key terms Flashcards
What is an example of a single gene dictating what characteristic you have
Red/Green colour blindness
What is an example of a characteristic that several genes alter
Height
What is meant by the term ‘allele’
A different version of the same gene
What is meany by the term ‘Homozygous’
2 same alleles from your mother and father
What is meant by the term ‘Heterozygous’?
2 different alleles from your mother and father
If you have 2 different alleles, the dominant/recessive one will be the one expressed
Dominant
What is meant by the term ‘genotype’
The combination of alleles an organism has for each gene
What is meant by the term ‘Phenotype’
The characteristics you get from your genotype
Each gene codes for a particular sequence of a______ a_____, which are put together to make a s_______ p_______
amino acids, specific protein
What are the 2 things that can affect an organism’s phenotype?
- Genetics
- Environment
The process of making a protein from lots of amino acids is called ______________
Polymerisation
Each DNA molecule contains 2 strands of n____________, which coil together to form a _________ ______
Nucleotides, double helix
Proteins control the development of different c______________, and how an organism functions
Characteristics
