Genetics Test Review

In humans, brown eyes (A) is dominant to blue eyes (a). Genotype of person who is homozygous recessive-

• AA
• Aa
• aa
• blue eyes

In humans, brown eyes (A) is dominant to blue eyes (a). Genotype of person who is heterozygous-

• brown eyes
• blue eyes
• Aa
• AA

In humans, brown eyes (A) is dominant to blue eyes (a). Phenotype of person who is heterozygous-

• Brown eyes
• Blue eyes
• Aa
• AA

In humans, brown eyes (A) is dominant to blue eyes (a). Phenotype of someone who is homozygous dominant-

• AA
• Brown eyes
• Blue eyes
• aa

Definition of homozygous-

• two different alleles
• two alleles that are the same
• physical characteristics of an organism
• genetic combination of alleles

Definition of heterozygous-

• two different alleles
• two alleles that are the same
• physical characteristics of an organism
• genetic combination of alleles

Definition of genotype-

• two different alleles
• two alleles that are the same
• physical characteristics of an organism
• genetic combination of alleles

Definition of phenotype-

• two different alleles
• two alleles that are the same
• physical characteristics of an organism
• genetic combination of alleles

different forms of the same gene are called

• alleles
• genetics
• p generation
• law of segregation

What is heredity?

• How different genes and traits are passed down from parents to children
• How different genes and traits are passed down from children to parents
• How traits are identical to parents
• How traits are different between siblings