Mendelian Genetics Quiz

What is the percentage of homozygous recessive offspring?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Green peas are dominant (G) to yellow peas (g). What is the phenotype for a heterozygous offspring?

• Green

• Yellow

• Green and yellow

• White

Tags

NGSS.HS-LS3-1

Which of the following is a heterozygous genotype? 

• GG
• gg
• GGG
• Gg

Tags

NGSS.HS-LS3-1

In Mendel's pea plants, the homozygous recessive phenotype was white flowers.  If Mendel crossed two homozygous recessive pea plants, what color flowers would be seen in the offspring?

• white and purple
• white 
• purple
• lavendar

Tags

NGSS.HS-LS3-1

What percentage of the offspring will be purebred?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Dominant alleles are represented by a(n)

• phenotype
• lower case letter
• upper case letter
• punnett square 

What type of traits "show up" in a population more often?

• dominant
• recessive
• punnett squares
• alleles

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What is the percentage of a homozygous dominant offspring?

• 75%
• 50%
• 25%
• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

If two purebred species (BB) are crossed, what percentage of their offspring would be BB?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What do you call the physical expression of a gene?

• genotype
• dominant
• phenotype
• allele