Biology Quiz

What are plasmids?

• Linear DNA molecules that replicate independently of the rest of the bacterial DNA

• Circular DNA molecules that replicate independently of the rest of the bacterial DNA

• Circular RNA molecules that replicate independently of the rest of the bacterial DNA

• Linear RNA molecules that replicate independently of the rest of the bacterial DNA

What can cloning be used for?

• To reproduce RNA molecules or mass-produce lipids

• To reproduce DNA molecules or mass-produce proteins

• To reproduce proteins or mass-produce carbohydrates

• To reproduce lipids or mass-produce RNA molecules

Tags

NGSS.HS-LS1-1

What is the primary function of restriction enzymes?

• To replicate DNA strands

• To cut DNA strands at a specific sequence

• To synthesize proteins

• To repair DNA strands

What type of ends do restriction enzymes create when they cut DNA?

• Blunt ends

• Sticky ends

• Circular ends

• Smooth ends

What is one application of restriction enzymes in genetic engineering?

• To create new cells

• To insert specific genes into a plasmid for expression

• To destroy harmful bacteria

• To produce energy

Which of the following statements is true about the cuts made by restriction enzymes?

• They make even cuts

• They do not make even cuts

• They only cut RNA

• They only cut at random sequences

What is the purpose of cDNA libraries?

• To store RNA sequences for the genes in the cell

• To store protein sequences for the genes in the cell

• To store DNA sequences for the genes in the cell

• To store lipid sequences for the genes in the cell

How is ssDNA constructed in the cell?

• Using DNA polymerase

• Using reverse transcriptase

• Using RNA polymerase

• Using ligase

What enzyme adds a complementary DNA strand in the construction of cDNA?

• RNA polymerase

• Ligase

• DNA polymerase

• Helicase

What do complementary DNA strands do?

• They hybridize and spontaneously form hydrogen bonds.

• They repel each other.

• They form covalent bonds.

• They disintegrate.