Punnett Squares Review

------is the combination of two alleles that are different from one another.

• homozygous

• heterozygous

• phenotype

• trait

The letters that make-up the genetic code for a trait

• genotype

• heterozygous

• phenotype

• trait

Tags

NGSS.HS-LS3-1

---- Is the combination of two alleles that are the same

• genotype
• homozygous
• phenotype
• trait

----is the type of gene that always shows itself when present

• genotype
• homozygous
• phenotype
• dominant

The physical appearance of the allele combination the offspring receives

• genotype
• homozygous
• phenotype
• dominant

Tags

NGSS.HS-LS3-1

Black fur (B) is dominant. Find the probability of a black offspring in a cross: bb x bb. 

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Look at the Punnett Square. What's the probability of having the recessive offspring?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS4-3

What are the parents' genotypes?

• Homozygous for brown eyes
• Heterozygous for brown eyes
• Homozygous for blue eyes
• Heterozygous for blue eyes

Tags

NGSS.HS-LS3-1

What is the phenotype for the recessive trait?

• brown eyes
• green eyes
• blue eyes

Tags

NGSS.HS-LS3-1

A type of gene that can be hidden is called

• genotype
• recessive
• dominant
• allele