DNA Structure, Replication, and Mitosis: OL Weekly Summative

Which nitrogenous base always pairs with adenine?

• guanine

• cytosine

• thymine

If there is 46% thymine in a DNA strand, what is the percentage of cytosine?

• 54

• 36

• 27

What is the end result of mitosis?

• Four genetically identical daughter cells
• Two genetically different daughter cells
• Two genetically identical daughter cells

If a cell has 24 chromosomes, how many chromosomes will its daughter cells have after mitosis?

• 4

• 12

• 8

• 24

What is the complementary pairing of DNA for the DNA strand G G T A A C?

• T T C G G A

• C C A T T G

• A A G C C T

Where does DNA replication happen?

• outside of the cell

• in the cytoplasm

• at the ribosomes

• in the nucleus

During which phase of a cell's life does DNA replication happen?

• telophase

• prophase

• interphase

• metaphase

Which process is the main way eukaryotic organisms grow and repair tissues?

• mitosis

• binary fission

• meiosis

What is helicase?

• a lipid

• a nucleic acid

• an enzyme

• a carbohydrate

What is the process called when DNA makes a copy of itself?

• replication

• translation

• transcription