Question

1. everyone in squidwards family has light blue skin, which is the dominant trait for body color in his hometown of squid valley. his family brands that they are a \purebred\ line. he recently married a nice girl who has light green skin which is a recessive trait. create a punnett square to show the possibilities that would result if squidward and his new bride had children. use b to represent the dominant gene and b to represent the recessive gene.

a. list the genotypes with the phenotypes of the possible offspring.
b. what are the chances of a child with light blue skin?
c. what are the chances of a child with light green skin?
d. would squidwards children still be considered purebreds? explain.

1. assume that

Explanation:

Step1: Identify parental genotypes

Squidward (purebred dominant): $BB$; Bride (recessive): $bb$

Step2: Set up Punnett Square

	$B$	$B$
$b$	$Bb$	$Bb$

Step3: Analyze offspring genotypes/phenotypes

All offspring inherit $Bb$; dominant trait shows.

Step4: Calculate trait probabilities

Count Punnett Square outcomes for each trait.

Step5: Define purebred status

Purebred = homozygous ($BB$ or $bb$).

Answer:

a. Genotype: $Bb$; Phenotype: Light blue skin (all possible offspring)
b. 100%
c. 0%
d. No. All children have the heterozygous genotype $Bb$, while purebred individuals must be homozygous (having two identical alleles, either $BB$ or $bb$).