DNA Replication Summary

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication
• Translation
• Transcription

Tags

NGSS.HS-LS3-2

The bonds that hold the two strands of DNA together come from...

• the attraction of phosphate groups 
• strong bonds between  bases and sugars
• carbon to carbon bonds in the sugar
• weak hydrogen bonds between the bases

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• chloroplast
• nucleus

Tags

NGSS.MS-LS1-2

The nucleic acid DNA is composed of

• sugar, protein, and nitrogenous bases.
• protein, nitrogenous bases, and phosphate.
• nitrogenous bases, phosphate, and RNA.
• sugar, phosphate, and nitrogenous bases.

DNA replication turns one strand of DNA into two new strands of DNA. What percent of each new strand is the old strand?

• Half of each new DNA is the old DNA
• The old strand of DNA was digested, so none
• The new DNA is entirely made up of the old DNA
• About every sixth base comes from the old DNA

Sometimes, DNA is called "semi-conservative." Why might this be?

• The old strand is "conserved" and used to make the new strands
• Uracil is "conserved" in that it is only used to make the new strands
• ATP is "conserved" via the usage of facilitated diffusion
• Ligase is "conserved" in that it is denatured by the process

Tags

NGSS.HS-LS3-2