WorksheetsHonors unit 6 quiz1
Total questions: 18
Worksheet time: 12mins
The enzyme that unzips the DNA to prepare for replication
helicase
replicase
polymerase
synthase
Which enzyme stabilizes DNA for replication so that it doesn't tangle or overwind.
topoisomerase
Which enzyme is only used on the lagging strand during replication?
DNA polymerase
DNA polymerase
To what part of the DNA nucleotide does the Nitrogen base attach?
Which enzyme creates the new sides of the DNA molecule by pairing A-T and G-C?
polymerase
ligase
helicase
topoisomerase
The two DNA strands are held together by
nitrogen bonds between the bases
hydrogen bonds between the bases
covalent bonds between the bases
hydrogen bonds between the sugar and phosphate
Prokaryotic DNA is __________and ___________
circular and in the nucleus
circular and in the cytoplasm
larger and contains more genes than eukaryote
linear and in the nucleus
Letter A in this diagram shows the_______ and letter D shows the ________
deoxyribose sugar; nucleotide
phosphate; nucleotide
phosphate; sugar
nitrogen base; nucleotide
The area C represents a _______that would be held by a _________bond to the arrow shape across from it
nitrogen base; covalent
nitrogen base; hydrogen
phosphate; covalent
phosphate; hydrogen
What are the three parts of a nucleotide?
Adenine, guanine and thymine
phosphates, carbohydrates and lipids
bases, acids and neutrals
sugar, phosphate and nitrogen base
The process of replication is being shown in the image. Which option below best describes what happens during replication?
DNA is unzipped and proteins are made from amino acids
One strand of DNA is unzipped and used to make 2 strands of DNA that are identical
DNA is unzipped and is made from a double strand of DNA
DNA is unzipped and forms two new DNA molecules with their own unique code
A segment of DNA is shown in the diagram. Which of these identifies the part of the DNA segment labeled X?
Nucleotide
Phosphate group
Hydrogen bond
Deoxyribose
A Nucleotide is shown above. What part of the Nucleotide is labelled "3"?
Sugar
Phosphate
Nitrogenous Base
ATG TGA CAG
Where does the DNA molecule unzip at during DNA replication?
Between the sugar and phosphate
Between the sugar and nitrogen bases
Between the nitrogen bases
The monomer of nucleic acids is called a __________
amino acid
nitrogen base
nucleotide
deoxyribose sugar
