Genetics

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?

• Purebred
• Hybrid

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An offspring will receive how many alleles from each parent to determine a specific trait?

• one
• two
• three
• five

Tags

NGSS.HS-LS3-1

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Tags

NGSS.HS-LS3-1

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

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

What is the definition of phenotype?

• The physical expression of a trait
• The genetic combination of alleles
• A gene on the DNA strand

Tags

NGSS.HS-LS3-1

What is the definition of genotype?

• The physical expression of a trait
• The genetic combination of alleles 
• the genes on a DNA strand

Tags

NGSS.HS-LS3-1

One form of a gene is called_______________

• a DNA
• a Phenotype
• a trait
• an allele

Tags

NGSS.HS-LS3-2

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the percentage of offspring that have green pods?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3