Problem: Wildtype fruit flies have gray bodies (b+) and red eyes (cn+) while mutant fruit flies have black bodies (b) and cinnabar eyes (cn). A parental (P) cross is performed between a true-breeding gray-bodied red eye fruit fly and a true-breeding black-bodied cinnabar eye fruit fly. What is the genotype and phenotype of the F1 flies?

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FREE Expert Solution

In the given cross, the parents are true-breeding. This means that their genotypes are homozygous for the traits that they are carrying: One parent would have the genotype b+b+ cn+cn+, while the other has the genotype bb cncn.

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Problem Details

Wildtype fruit flies have gray bodies (b+) and red eyes (cn+) while mutant fruit flies have black bodies (b) and cinnabar eyes (cn). A parental (P) cross is performed between a true-breeding gray-bodied red eye fruit fly and a true-breeding black-bodied cinnabar eye fruit fly. What is the genotype and phenotype of the F1 flies?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Chromosomal Theory of Inheritance concept. You can view video lessons to learn Chromosomal Theory of Inheritance. Or if you need more Chromosomal Theory of Inheritance practice, you can also practice Chromosomal Theory of Inheritance practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dooley's class at Adelphi University.