patterns of inheritance Flashcards
1
Q
what is an allele
A
alternative form of a particular gene
2
Q
what is a genotype
A
combination of alleles an individual has for a particular gene
3
Q
what is polydactyly
A
having extra fingers or toes caused by a dominant allele
4
Q
what is cystic fibrosis
A
disorders of the cell membranes (lungs) caused by a recessive allele
5
Q
girls are
A
XX and boys are XY
6
Q
what’s a phenotype
A
how alleles are expressed (what characteristic appears)
