First, What are the genotypes of the parents? The male is easy. He is homozygous dominant for lights (L) so he is which of the following?




He is also homozygous recessive for the eye (e) trait. What is his genotype for eyes?




Putting these two together, we come up with a genotype of LLee for the male. The illustration at the right shows his genotype for these traits. Remember they are linked and so are on the same chromosomes.


Now, what gametes will he produce?




Now to the female, she is heterozygous for both traits, so her genotype is which of the following?







The female's chromosomes are pictured at the right. What will her gametes be?





Now that you have the gametes for both male and female viper fish, perform a punnett square to determine the offspring produced:





Your punnett square should look similar to the one below. If it does not, review the material on gamete formation and how to set up the punnett square and try again.

LE le
Le LLEe Llee
Le LLEe Llee





Now return to the question page and select the correct answers.