Genetics Vocabulary

Which is heterozygous ?

• Tt

• TT

Which is homozygous ?

• Ee

• EE

What is a phenotype?

• The genetic make up (code or letters)

• The physical appearance of a gene

having two of the same genes for the trait (sometimes called purebred)

• homozygous

• hetrozygous

• protein

• chromosome

Tags

NGSS.HS-LS3-1

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

• protein

• homozygous

• heterozygous

• genotype

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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