Genetics practice 15 questions

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 recessive?

• rr

• TT

• AA

• Ff

Which of the following is homozygous dominant?

• Jj

• MM

• Rr

• ee

Which of the following is heterozygous?

• AA

• Aa

• aa

• 22

Whose discoveries set the foundation for the study of genetics?

• Oliver

• Taylor

• Mendel

• Newton

The passing of traits from parents to offspring

• heredity

• a molecule