DNA Replication and Protein Synthesis

At what point in the cell cycle does DNA replication occur and why?

• before a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions
• before a cell divides, to ensure that the DNA will fit into the resulting cells
• during cell division, to ensure that the DNA will fit into the resulting cells
• after a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions 

Which choice describes DNA after replication has taken place?

• one molecule with two original strands and one molecule with two new strands
• two molecules, each with one original and one new strand
• two molecules, each with two new strands
•  two molecules, each with two old strands

What makes DNA different from RNA?

• they type of phosphate
• the type of sugar
• having C pair with G
• Having A's

What 3 things make up a nucleotide?

• Sugar, Phosphate, Nitrogen Base
• Sugar, Hydrogen, Carbon
• Carbon, Phosphate, Nitrogen
• mRNA, tRNA and rRNA

Which of the following would most likely cause a mutation?

•  the placement of ribosomes on the endoplasmic reticulum
• the insertion of a nucleotide into DNA
• the movement of transfer RNA out of the nucleus
•  the release of messenger RNA from DNA

Tags

NGSS.HS-LS3-2

What stores the code for making an individual protein?

• DNA
• a gene
• a chromosome
• transfer RNA

Tags

NGSS.HS-LS1-1

The process shown in this image

• is called replication
• results in a new copy of the DNA
• does not happen during mitosis
• All of these apply

Tags

NGSS.HS-LS3-2

Which of the following is required for DNA replication to occur?

• DNA helicase
• DNA ligase
• DNA polymerase
• all of these

Okazaki fragments form on the:

• lagging strand
• leading strand
• base-pairs
• 5' end

During replication, what enzyme adds complimentary bases?

• helicase
• synthesase
• ligase
• polymerase