Genetics Practice Quiz

Genes are made up of how many alleles?

• One

• Two

• Three

• Four

What is an example of a species feature?

• Two ears

• Blue eyes

• Long tail

• Short legs

What does a group of species have that an organism’s genes code for?

• Feature

• Organ

• Cell

• Protein

What does the genetic cross tell us about the parents' appearance?

• Genotype

• Phenotype

• Allele

• Chromosome

What is the genotype of the offspring in the Black Rabbits (dominant) x White Rabbits (Recessive) cross, if both are homozygous?

• BB

• Bb

• bb

• bB

What are the eye color possibilities for children if the parents have genotypes Bb and BB, if B=brown & b=blue?

• 100% Blue Eyes

• 50% Brown Eyes, 50% Blue Eyes

• 100% Brown Eyes

• 75% Brown Eyes, 25% Blue Eyes

In a genetic cross, what does the term "phenotype" refer to?

• Genetic makeup

• Physical appearance

• Chromosome number

• DNA sequence

If a pink snapdragon (RW) is crossed with a white snapdragon (WW), what would you expect the flower colors of the offspring to be?

• 100% Red

• 100% White

• 50% Pink, 50% White

• 25% Red, 75% White

What is the flower color of the offspring when a red snapdragon (RR) is crossed with a white snapdragon (WW)?

• 100% Red

• 100% White

• 100% Pink

• 50% Red, 50% White

What is the genotype of a snapdragon plant with white flowers?

• RR

• RW

• WW

• rr or ww