Genetics Review

genetics is the study of __________

• heredity

• genetics

• parents

a gene is a _________ of DNA

• DNA

• segment

• RNA

• nucleotide

A ______________ is a physical characteristic

• DNA

• RNA

• gene

• trait

an _______ is a specific trait.

• trait

• gene

• allele

• DNA

TT; big letters are ___________

• recessive

• dominant

• nothing

tt, small letters are ______

• DNA

• dominant

• recessive

a ___________ is a letter combination of an allele

• phenotype

• genotype

• dominant

• recessive

a __________- is the trait that we see; black, long, blue, tall

• DNA

• recessive

• genotype

• phenotype

Tt, Hh, Rr

• homozygous

• heterozygous

• recessive

• phenotypes

TT, RR, WW, SS

• homozygous recessive

• homozygous dominant

• heterozygous

• recessive