Crash Course: Intro to Genetics (Biology #31)

The different versions of a gene are called:

• DNA

• chromosomes

• alleles

• genotype

Differentiate genotype and phenotype.

When one allele tends to override or overshadow the other allele, this pattern is referred to as:

• autosomal dominance

• non-Mendelian inheritance

• multiple alleles

• codominance

When one allele appears to be "mixed" with another in the heterozygous phenotype, scientists call this pattern ____ .

• codominance

• multiple alleles

• incomplete dominance

• autosomal dominance

Which of the following is true for codominant traits?

• Two alleles are expressed in the phenotype

• One allele is dominant over another

• An individual must be homozygous in order to exhibit codominance