Genetics

What is heredity?

• A kind of genetic disorder
• The way DNA divides
• A trait you inherit from your parents
• The passing down of traits from parents to children

How many pairs of chromosomes exist in each of your cells?

• 10
• 12
• 23
• 46

Which trait is completely determined by your DNA?

• Your personality
• Your intelligence
• Your natural hair color
• Your weight

Put in order smallest to largest:

• Chromosome - DNA - Gene
• Gene - DNA - Chromosome 
• DNA - Gene  Chromosome
• Chromosome - Gene  - DNA

The passing of traits from parent to child is known as _______________.

• heredity

• gene

• DNA

• RNA

This trait is represented by a lower case letter and hidden whenever the dominant allele is present

• dominant allele

• codominance

• recessive allele

• Punnett Square

This trait is represented by a capital letter and always shows up in an organism when the allele is present

• dominant allele

• codominance

• probability

• recessive allele

Which of the following is homozygous recessive?

• RR

• Rr

• rR

• rr

Which genotypes are heterozygous?

• EE

• tt

• Rr

• Both EE and tt

Which genotypes are homozygous dominant?

• EE

• tt

• Rr

• Both EE and tt