Prelab 1

Which of the following micro pipettes shows a volume of 500 microliters?

• Pipette A

• Pipette B

• Pipette C

• Pipette D

• Pipette E

If a DNA sample has a concentration of 1500 mg per mL, how much DNA is in 50 microliters?

• 75 mg

• 150 mg

• 750 mg

• 15 mg

• 60 mg

In a deoxyribonucleotide, the phosphate group is linked to

• The base adenine of the deoxyribonucleotide

• The C1 carbon of the deoxyribose

• The C5 carbon of the deoxyribose

• The C2 carbon of the deoxyribose

• Any base of the deoxyribonucleotide

Which of the following micro pipettes shows a volume of 30 microliters?

• Pipette A

• Pipette B

• Pipette C

• Pipette D

• Pipette E

If a sample contains 350 mg DNA in 3.5 mL, what is its concentration?

• 10 mg per mL

• 100 mg per mL

• 1 mg per mL

• 35 mg per mL

• 3.5 mg per mL

Which of the following is NOT found in DNA?

• The base adenine

• 2-deoxyribose

• Ribose

• Phosphate

• The base cytosine

Which of the following micro pipettes shows a volume of 50 microliters?

• Pipette A

• Pipette B

• Pipette C

• Pipette D

• Pipette E

If a sample contains 300 mg DNA in 0.25 mL, what is its concentration?

• 30 mg per mL

• 120 mg per mL

• 1.2 g per mL

• 300 mg per mL

• 3 g per mL

Which of the following links adjacent deoxyribonucleotides to form a DNA strand?

• The bases via base pairing

• The phosphodiester linkage

• The adenine bases

• The deoxyribose via the bases

• The ribose via the bases

When isolating DNA from chicken liver tissue, what is the purpose of homogenising the tissue sample in extraction buffer and SDS?

• To release macromolecules including DNA, RNA and proteins from the cell

• To release only DNA from the cells

• To release only DNA and RNA from the cells

• To release only proteins from the cells

• To prevent the release of RNA from the cells