Biological Change

Chapter 7 Biology: a Changing World

Multiple Choice

Which of the following is NOT a part of a nucleotide?

• Nitrogenous base

• Ribulose

• Ribose

• phosphate

• deoxyribose

Multiple Select

Which of the following chromosomes does Ana likely have?

• XY

• XO

• SOS

• XX

• NO

Fill in the Blanks

What's the name of the enzyme that unzips DNA?

Open Ended

What does semi-conservative mean?

Fill in the Blanks

How many copies of a segment of DNA would you get if you let one strand undergo 7 rounds of PCR? (in digits rather than words, please!)

Fill in the Blanks

How many strands of DNA would you have if 3 pieces of DNA completely underwent 5 rounds of PCR? (digits, not numbers please!)

Multiple Select

Would this be able to sequence prokaryotic DNA or only eukaryotic DNA?

• both

• just eukaryotic

Multiple Choice

If I sequenced a piece of DNA with the sequence GCAT, what base would appear first on a column or farthest away from the start of a gel?

• G

• C

• A

• T

• U

Fill in the Blanks

Assuming that each of 3 genes had 7 different possible STRs, how many possible combinations would there be of these STRs in the population in general?