Genes, Alleles, Phenotypes, Genotypes

The two types of alleles are (select two)

• dominant

• doughnut

• expressive

• recessive

Which of the following is heterozygous

• FF
• tt
• Gg
• RR

Which of the following is homozygous recessive?

• rr
• AA
• TT
• Ff

Which of the following is homozygous dominant?

• Jj
• Rr
• MM
• ee

Tags

NGSS.HS-LS3-1

The physical appearance of a trait is known as the-

• genotype
• phenotype
• characteristics
• intelligence

Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype?

• Brown Hair
• Blonde Hair
• Brown and Blonde Hair
• Black Hair

Tags

NGSS.HS-LS3-1

Alleles always occur

• singly (alone)

• in pairs (groups of 2)

• in triads (groups of 3)

• in tetrads (groups of 4)

Alternative forms of a gene are called

• Alleles
• Homozygous
• DNA
• Genetics

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This trait will always be expressed if present because it will mask the expression of others

• stem cells
• heterozygous
• dominant
• recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Being a carrier of a genetic disorder is an example of

• genotype
• phenotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2