the passage below describes a species of fish. in a species of fish, some fish have long fins and some fish…

the passage below describes a species of fish. in a species of fish, some fish have long fins and some fish have short fins. the allele for long fins (f) is dominant over the allele for short fins (f). in a group of these fish, one fish has the genotype ff and has long fins. another fish has the genotype ff and has short fins. these two fish mate and produce many offspring. select all the possible genotypes an offspring could have. ff ff ff select all the possible phenotypes an offspring could have. long fins short fins

the passage below describes a species of fish. in a species of fish, some fish have long fins and some fish have short fins. the allele for long fins (f) is dominant over the allele for short fins (f). in a group of these fish, one fish has the genotype ff and has long fins. another fish has the genotype ff and has short fins. these two fish mate and produce many offspring. select all the possible genotypes an offspring could have. ff ff ff select all the possible phenotypes an offspring could have. long fins short fins

Answer

Explanation:

Step1: Determine parental gametes

The fish with genotype $FF$ can only produce gametes with allele $F$. The fish with genotype $ff$ can only produce gametes with allele $f$.

Step2: Use Punnett - square principle

When $F$ gametes from the first fish combine with $f$ gametes from the second fish, all offspring will have the genotype $Ff$.

Step3: Determine phenotypes

Since the allele for long fins ($F$) is dominant over the allele for short fins ($f$), all offspring with genotype $Ff$ will have long - fin phenotype.

Answer:

Possible genotypes: Ff Possible phenotypes: long fins