We can see Forms of things with our own eyes.

In a mystical bird species, birds with the dominant allele C are white, whereas birds homozygous for the recessive allele c are colored. This species also have a second locus that acts as a modifier gene if the bird is colored. If birds are colored and are G- at the second locus, they will be yellow. If they are colored and gg at the second locus, they will be green. You cross a double heterozygous bird and a double homozygous recessive (CcGg  x ccgg). What percentage of the offspring will be white, and what percentage will be yellow?  

Eloise’s grandmother suffered from an X-linked dominant disease. If Eloise’s uncle (II-5) marries a healthy/non-carrier woman, what is the probability of them having 4 healthy children?  

The genetic profile of the embryos in a population is indicated in the table below. Following natural selection, the deleterious phenotype disappears and only a portion of the population reaches adulthood. Think about the values needed to complete the table, this will help you find the values needed for this question and the following two.   What is the frequency of allele A in the reproductive adults?  

Color-blindness is an X-linked recessive disease. A man that doesn’t suffer from the disorder is going to marry a woman who is not color blind but has had a color blind son by another man. What are the probabilities of this new marriage producing a color blind child?  

Hemophilia is an X-linked recessive trait. A man and a woman do not suffer from hemophilia but the couple’s first child does. What is the probability that their second child, who is a female, also suffers from the disorder?  

Match the following regions:

Which of the following is NOT correct for anatomical position?

In a second class lever, which of the following statements/examples is a true statement?

According to the rule of simple machines, when dealing with inclined planes, the advantage gained in force (decreased effort needed) is lost in distance (longer ramp needed).