P53 is a ____
a. transcription factor that turns on expression of cell division inhibiting proteins
b. protein encoded by an oncogene
c. protein that promotes entry into the cell cycle when DNA is undamaged
d. hormone used to treat cancer
e. growth promoting factor
ANSWER: a
You might also like to view...
In the IP3/DAG pathway, what is the effector molecule?
a. IP3 b. DAG c. PIP2 d. phospholipase C e. calcium
You are genetic counselor, and a couple comes to you with concerns that if they have a child together
it could have sickle-cell disease. Genetic tests reveal that the man and woman are both carriers for sickle-cell disease. Which of the following would be a correct thing to tell them?
a. Any child that they produce has a 50% chance of having sickle-cell disease, and the rest will be carriers. b. All of their offspring will have sickle-cell disease. c. They should not have any concerns, as no child that they produce should wind up with sickle-cell disease. d. No child that they produce should wind up with sickle-cell disease, but each of their offspring will have a 50% chance of being a carrier. e. Any child that they produce will have a 25% chance of having sickle-cell disease.
In an XY individual, a mutation in an X-linked gene called the androgen receptor results in androgen insensitivity and _____
1.Klinefelter syndrome 2.female phenotype 3.pseudohermaphroditism 4.Turner syndrome 5.X chromosome inactivation
How is osmolarity measured?
a. total solute plus solvent concentration in a solution b. total solute concentration in a solution c. ratio of solvent to solute in a solution d. total solvent concentration in a solution