Question

punnett square practice #1
f represents fish with a star
f represents fish without a star

1. what would happen if a homozygous star - bellied snark and a heterozygous star - bellied snark mated? complete the punnett square to determine the chances of each fish offspring.

a. what is the probability the offspring would have a star?

Explanation:

Step1: Determine the genotypes

A homozygous star - bellied snark has genotype \(FF\), and a heterozygous star - bellied snark has genotype \(Ff\).

Step2: Set up the Punnett square

	\(F\)	\(F\)
\(f\)	\(Ff\)	\(Ff\)

Step3: Calculate the probability

Out of 4 possible offspring genotypes (\(FF, FF, Ff, Ff\)), 4 have the allele combination that results in a star (since \(F\) is dominant for the star trait). The probability is \(\frac{4}{4}=1\) (or \(100\%\)).

Answer:

\(100\%\)