Unit 3 Assessment Bio- B

How many pairs of chromosomes does each person have?

• 46

• 23

• 2

• 1,046,023

The trait that will always be expressed if at least one copy of an allele is present.

• Recessive

• Dominant

• DNA

The trait that will be expressed only if two copies of the allele are present.

• Recessive

• Dominant

• DNA

What is it called when a gene carries two different types of alleles?

• Homozygous

• Heterozygous

• Monozygous

• Trizygous

What is it called when a gene carries two of the same alleles?

• Homozygous

• Heterozygous

• Monozygous

• Mamazygous

Which of the following is heterozygous?

• FF

• Gg

• tt

• RR

Which of the following is homozygous dominant?

• Jj

• MM

• Rr

• ee

Which of the following is homozygous recessive?

• rr

• TT

• AA

• Ff

How much of your DNA do you inherit from your mom?

• 10%
• 25%
• 50%
• it varies

If all F1 generation is Aa, then the expected crossing between parents' genotypes are

• AA x Aa

• AA x aa

• Aa x Aa