Kris and Kurt are twins. You are interviewing them together. You drop a paperclip on the floor while talking to them. You immediately leave the room. You return about 5 minutes later and ask if either of them remember what happened just before you left the room. Neither of them […]

Loss of 15q 12, the PWS/AS region produces different symptoms depending on the parent of origin. PWS results from the loss of paternal copies of this region. Deletion of the same region on the maternal chromosome causes AS. Human SNRPN, a gene in the deleted region is monoallelically expressed in […]

1. “If humans are in the same class as domestic cats we must also be in the same order.” True or False? Explain. 2. Explain in your own words how, from an evolutionary standpoint, a desert spring and an island in the ocean are similar. 3. Consider the following statement: […]

One of a farmer’s more exotic Indian corn cobs has three different kernel colors (Tricolor Corn?). These cobs were easy to obtain. The farmer crosses parent 2 (Yellow Shrunken) with parent 4; both are true breeding. The seed from this cross are then used to grow a second generation of […]