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WorksheetsDNA and RNA Structure
Total questions: 11
Worksheet time: 6mins
There are three different types of RNA.
The function of mRNA is to...
read, or copy, the DNA code
bring amino acids to the ribosome during protein synthesis
assemble the amino acids into proteins
What category of molecule does DNA and RNA belong to?
carbohydrates
lipids
nucleic acids
proteins
What are the building blocks of RNA and DNA?
monosaccharides
amino acids
fatty acids
nucleotides
DNA _____________________________________ and RNA ____________________________.
is involved in actual protein synthesis, holds coded hereditary information
transports amino acids to the ribosome, transports finished proteins to tissues
holds coded hereditary information, is involved in actual protein synthesis.
There are three different types of RNA.
The function of rRNA is to...
read the DNA code.
bring amino acids to the ribosome during protein synthesis.
assemble the amino acids into proteins.
When and why does DNA need to replicate?
DNA replicates before protein synthesis can happen.
DNA only replicates in order to mutate.
It replicates before mitosis and meiosis so all cells can have the correct amount of DNA for their ultimate function.
none of the above
Two other differences between RNA and DNA are that...
RNA is made of amino acids and DNA is made of lipids.
the number of helices and the types of nitrogen bases in the molecules.
the fact that one has a "backbone" while the other does not
What is a nucleotide made of?
one glycerol and three fatty acids molecules
an amino group and a carboxyl group
monosaccharides and disaccharides
a 5-carbon sugar, a phosphate group and a nitrogen base
RNA and DNA differ in the types of 5-carbon sugars in their nucleotide. Which statement below is correct?
RNA contains lactose while DNA contains maltose.
DNA contains ribose while RNA contains deoxyribose.
RNA contains sucrose while DNA contains glucose.
DNA contains deoxyribose while RNA contains ribose.
Because of the fact that A always pairs with T and C always pairs with G, DNA is
is different in every cell in the body
self-replicating
indefinite in length
none of the above
There are three different types of RNA.
The function of tRNA is to...
read the DNA code
bring amino acids to the ribosome during protein synthesis
assemble the amino acids into proteins
