Unit 8- Mendelian Genetics & Mutations

Who is the "father" of modern genetics?

• Gregor Mendel

• Andreas Vesalius

• James Watson

• Charles Darwin

A _______ is an alternative form a gene.

• chromosome

• sister chromatid

• allele

• telomere

a trait that is always expressed if present is _____________________

• Recessive

• Dominant

• Strong

• True

a trait that is masked unless 2 copies are present is ________________________

• recessive

• dominant

• weak

• hidden

the physical/observable characteristic

• phenotype

• genotype

the organism's genetic makeup

• phenotype

• genotype

Select all that would be considered phenotypes:

• Blonde

• Rr

• Short

• rr

Select all that would be considered genotypes:

• Blonde

• Rr

• Short

• rr

What genotype is homozygous dominant?

• RR

• Rr

• rr

What genotype is homozygous recessive?

• RR

• Rr

• rr