Keep for Dihybrids
In Fruit Flies having a tan body (B) is dominant over having an ebony body (b) and having Red eyes (E) is dominant over having brown eyes (e). Below are the 4 phenotypes that could result from combining B,b,E, and e
Below is a cross between two fruit flies that are heterozygous for both traits
Question: Match the number of fruit flies out of 16 that will have each of the phenotypes below
Jim’s sperm cells are shown below.
Based on this information, what is Jim’s genotype?
Jim meets Pam. Pam’s genotype is AABb.
How many different types of gametes can she produce?
Scenario #1: In a rare species of tree frog, green skin is dominant to blue skin and long tongues are dominant to short tongues. A homozygous green-skinned tree frog that is heterozygous for having a long tongue is crossed with a blue-skinned tree frog that has a short tongue.
Question: What is the probability of having offspring that are heterozygous for both traits?
Scenario #2: In giraffes, long necks are dominant to short necks and spots are dominant to no spots. A heterozygous long neck giraffe without spots mates with a short neck giraffe who is heterozygous for having spots.
Question: What is the probability of having a short neck giraffe with spots?
