Genetics Lesson 3.1-3.2

genotypes made of the same alleles 

• alleles
• heterozygous
• homozygous
• recessive

genotypes made of two different alleles 

• heterozygous
• homozygous
• dominant
• alleles

gene that is always expressed 

• heterozygous
• homozygous
• dominant
• recessive

different forms of genes for a single trait 

• heterozygous
• homozygous
• recessive
• alleles

gene that is expressed only in the homozygous state 

• recessive
• dominant
• alleles
• homozygous

Choose the dominant allele.

• d
• E
• q
• n

Choose the recessive allele.

• M
• D
• r
• P

Choose the homozygous dominant.

• AA
• GR
• bB
• mm

Choose the homozygous recessive.

• ee
• Ff
• HH
• oa

Choose the purebred.

• po
• bb
• cC
• Rr