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WorksheetsDNA & RNA
Total questions: 20
Worksheet time: 21mins
Which of the following cell parts contains DNA?
cell membrane
nucleus
ribosomes
endoplasmic reticulum
In DNA, the base ADENINE always pairs with:
ADENINE
THYMINE
GUANINE
CYTOSINE
If a strand of DNA has a base sequence of C-T-T-A-G-G what would its complementary strand be?
G-A-A-T-C-C
C-T-T-A-G-G
G-G-A-T-T-C
None of these
The two sides of the DNA ladder are loosely bonded together by:
magnetism
plasma
RNA
hydrogen bonds
The shape of DNA is often described as a:
hexagon
pyramid
double helix
pentagon
The sides of the DNA molecule are made up of deoxyribose sugar and:
adenine
phosphate groups
genes
enzymes
A nucleotide contains...
a phosphate group
a sugar
a base
all of these
When DNA makes a copy of itself, it’s called:
replication
osmosis
translation
transmission
Which enzyme separates or “unzips” DNA strands during replication?
DNA polymerase
helicase
RNA polymerase
ligase
All of the following statements about DNA and RNA are true EXCEPT:
DNA contains deoxyribose while RNA contains ribose.
mRNA is larger than DNA.
RNA can leave the nucleus and DNA cannot.
RNA contains uracil and DNA does not.
RNA helps deliver the instructions from the DNA to the ribosomes, where ______________ are made.
proteins
carbohydrates
cells
new DNA molecules
There is only one type of RNA.
True
False
Which type of RNA is involved in TRANSCRIPTION?
mRNA
tRNA
rRNA
none of these
During transcription, a sequence of DNA is copied into mRNA. Where does this happen?
in the cell membrane
in the ribosomes
in the nucleus
It could happen anywhere in the cell.
A mutation is an error in your DNA.
True
False
A section of DNA that codes for a specific trait is a...
gene
chromosome
sugar
helix
Which of the following scientists helped us discover the structure of DNA?
James Watson
Francis Crick
Rosalind Franklin
all of these
Amino acids...
are the building blocks of protein
are coded for in our DNA and RNA
may be affected by a mutation in our DNA
all of these
Proteins are always the same shape.
True
False
During transcription, RNA copies ALL of the cell's DNA.
True
False
