A microbiologist isolated a mutant strain of E. coli that is extremely susceptible to bacteriophage infection, by a wide range of bacteriophages. Which of the following genes might she explore as a possible site of the mutation that results in this particular phenotype?

Which of the following statements about mitochondria and chloroplasts is NOT true?

Bonus question: Is the molecule from the previous question DNA, RNA or protein? How do you know?

What is the coefficient of in the expansion of 

A bit string contains 1’s and 0’s. How many different 6-bit strings are there?  

Which of the following describes sequence 9, 8, 7, 7, 6, 5, 1?

True or False. The following graph is 3-edge-connected.

Refer to the given tree. Which one of the following corresponds to the string 11110100110?

True or False. If  is false,  is true, and is  false,

A fair coin is flipped five times. What is the probability that the first three flips come up heads and the last two flips come up tails?