Get up and go get a whiteboard, and eraser, and a marker. (By the way, my markers better be returned at the end of the period...some of the new ones have already gone missing! Please stop stealing my supplies!)
On your whiteboard, do all parts of the dihybrid cross problem below:
An aquatic arthropod called a Cyclops has antennae that are either smooth or barbed. The allele for barbs (B) is dominant over smooth (bb). In the same organism Non-resistance to pesticides (N) is dominant over resistance to pesticides (nn).
A Cyclops that is resistant to pesticides and has smooth antennae is crossed with one that is heterozygous for both traits. Show the genotypes of the parents.
a) Write the cross.
b) Do the Punnet square.
c) Write the phenotypic ratio. (Write this as the answer to this journal!)
On your whiteboard, do all parts of the dihybrid cross problem below:
An aquatic arthropod called a Cyclops has antennae that are either smooth or barbed. The allele for barbs (B) is dominant over smooth (bb). In the same organism Non-resistance to pesticides (N) is dominant over resistance to pesticides (nn).
A Cyclops that is resistant to pesticides and has smooth antennae is crossed with one that is heterozygous for both traits. Show the genotypes of the parents.
a) Write the cross.
b) Do the Punnet square.
c) Write the phenotypic ratio. (Write this as the answer to this journal!)