Genetics Vocabulary

Which is heterozygous ?

• Tt

• TT

Which is homozygous ?

• Ee

• EE

having two different genes for a trait (sometimes called hybrid)

• protein

• homozygous

• heterozygous

• genotype

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

An organism's appearance is known as its

• heredity
• phenotype
• genotype
• pedigree

Which of the following genotypes is a homozygous (purebreed)?

• Bb

• Gg

• bb

• Dd

What is the definition of phenotype?

• The physical expression of a trait

• The genetic combination of alleles

• A gene on the DNA strand

• A variation of a gene

One form of a gene is called_______________

• a DNA
• a Phenotype
• a trait
• an allele

Which of the following is a phenotype?

• Bb
• Black fur

Which is an example of an allele?

• eye color

• Bb

• brown eyes

• BB