Genetic Inheritance Flashcards
What is a gene
section of DNA that codes for certain protein
What is an allele
different form of same gene
When you have two of the same allele in chromosome pair what is it called
HOMOZYGOUS
When you have two different alleles in chromosome pair what is it called
HETEROZYGOUS
What is a dominant allele
One that makes themselves present
What is a recessive allele
One that can be hidden when present and need two of same allele to be shown
What is a phenotype
the observable trait from the alleles they have
What is a genotype
Combination of alleles you possess
When creating a genotype diagram what are some of the rules
Label everything
Capital letter is for dominant
Lowercase is for recessive
Circles are for gametes
Punet square
What are two inheritied diseases we need to know
Cystic Fibrosis
Polydactyly
What are the difference with alleles with cystic fibrosis and polydactyly
Cystic is caused by recessive allele
Polydactyly is caused by dominant allel
What is polydactyly
Having extra fingers or toes
What is cystic fibrosis
Cell membrane defective gene so water can’t get out certain cells
