What is the function of a restriction enzyme in genetic engineering?

In the human ABO blood grouping, there are four basic blood types, type A, type B, type AB, and type O. If a man and woman marry and they both have type AB blood, what are the possible phenotypes of their children? (choose all that apply)

In comparative anatomy, which of the following pairs are not homologous and are thus an example of analogous structures?

What happens in a normal cell when an inhibitory growth factor binds to its receptor on the cell membrane?

The function of a vector in genetic engineering is to …

What has been the main use of the transgenic mice created in the past decade?

All cells use ___________ as the genetic material of inheritance.

Hemophilia is a sex-linked recessive trait. Imagine a case of a woman who is not a hemophiliac (she has normal blood clotting), but her father was a hemophiliac. She marries a man who is also not a hemophiliac. What is the probability for their children of being hemophiliacs?

Which of the following would have the greatest impact on a cell and its offspring?

In bacteria, the lac operon is maximally expressed when …