Genetics

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Which of the following is homozygous dominant?

• Yy
• Y
• yy
• YY

Which of the following is homozygous recessive?

• Tt
• tt
• TT
• T

Homozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Heterozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

How many alleles (letters) does each person carry for a trait?

• 1

• 2

• 3

• 4

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

Recessive alleles are represented by a:

• Male gene

• lowercase letter

• recessive trait

• capital letter

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B