Genetics Quiz

The genetic makeup of an organism

• phenotype

• genotype

• allele

An alternative form a gene (one member of a pair) that is located on a chromosome

• genotype

• phenotype

• allele

the expression of a trait that occurs when the dominant form of the allele is absent

• Recessive

• Dominant

• Phenotype

The physical expression of an organism's genetic make-up

• Genotype

• Phenotype

• Gene

A short segment of DNA, that tell the body how to build a protein, and codes for a specific physical trait.

• allele

• genotype

• gene

What does the TT represent in this Punnett square?

• a genotype consisting of two dominant alleles

• a heterzygous trait

• a single allele

• a genotype consisting of two recessive alleles

This punnett square shows incomplete dominance in snap dragons. What do the Rr alleles represent?

• heterozygous traits

• homozygous recessive traits

• homozygous dominant traits

In peas, round (R) is dominant to wrinkled (r). What is the genotype of a heterozygous plant?

• RR

• Rr

• round

• wrinkled

In peas, round (R) is dominant to wrinkled (r). What is the phenotype of a heterozygous plant?

• RR

• Rr

• round

• wrinkled

In peas, round (R) is dominant to wrinkled (r). What is the genotype of a wrinkled plant?

• RR

• Rr

• rr

• round