Question

What percentage of babies have Brown and Blue eyes? (to find percent divide the total number of blue-eyed babies by the total number of babies born. You should get a decimal number. Just use the first two numbers as the percent. If your answer is .25 you would have 25%).

Answer 1

We have 20 babies. 10 have blue eyes, which means their genotype is -bb-, while 10 have brown eyes, which means their genotype is either -BB/Bb-. So, according to the data half of the babies have blue eyes, while the other half has brown eyes. This means 50% for each condition: 50% has blue eyes, 50% has brown eyes.