WorksheetsDNA structure and Replication
Total questions: 18
Worksheet time: 18mins
What makes up the SIDES of a DNA ladder?
nitrogen bases
sugars & phosphates
genes & chromosomes
RNA
What makes up the rungs (steps) of a DNA ladder?
sugars & phosphates
nitrogen bases
sugars
genes & chromosomes
What SHAPE is DNA?
single strand
straight ladder
double helix (twisted ladder)
DNA has no shape
In DNA. what base always pairs with A?
A
T
C
G
If one strand of a DNA molecule has the following order of bases, what will be the correct order of bases on the complementary (matching) strand?
AATTGGCC
AATTGGCC
TTAACCGG
GGCCAATT
GACTGACT
What is DNA made up of?
nucleotides
cytoplasm
RNA
cells
5'-ATGCCAT-3'
The picture below shows the steps of DNA replication beginning with step one and ending with step three.
Because you are reusing the old, or parent, DNA strand DNA replication is said to be
Semi- Conservative
Semi-discontinuous
Continuous
Fully-Conserveative
The picture below shows an enzyme unwinding and unzipping DNA.
What is the name of this enzyme?
DNA Helicase
DNA Ligase
DNA polyermase
RNA Polymerase
Which enzyme is responsible for adding the free nucleotides to the replicating DNA?
DNA Helicase
DNA Ligase
DNA polyermase
RNA Polymerase
The directionality of DNA is said to be ___________, because it is side by side by goes in opposite directions.
Anti-directional
Parallel
Anti-parallel
Anti-uniform
