If a snail could be green or brown, and a heterozygous green* snail mated with a brown snail, what would the genotypic ratio of their offspring be?
HINT: if the heterozygous genotype results in a green phenotype, which color is dominant?

• 1:2:1
• 2:2
• 3:1
• 1:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If butterflies can have straight or curly antennae, and curly is recessive; what is the possibility (using %'age) that a pure breeding straight is crossed with a hybrid straight, will have offspring with straight antennae?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

The genetic makeup of an individual is known as its ...

• genotype
• phenotype
• alleles
• heterozygous

The physical characteristics that result from genes is...

• phenotype
• genotype
• heterozygous
• homozygous

A form of a trait that covers another trait is said to be...

• dominant
• recessive
• heterozygous
• homozygous

Which gentotype would be considered heterozygous?

• Rr
• RR
• rr
• YY

Different forms of the same gene are called

• alleles
• genetics
• p generation
• law of segregation

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?

• 100% Tt
• 50% Tt, 50% tt
• 75%Tt, 25%tt
• 25%TT, 50%Tt, 25%tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome