Welcome to the Quiz!
This quiz contains 12 questions from a mix of 1 subtopics.
A section of DNA that codes for a protein is called a .
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Which of the following describes transcription?
The movement of DNA from the nucleus to the cytoplasm
The combination of amino acids to form a polypeptide
The copying of a single gene of DNA, to mRNA
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Where does transcription take place?
Chloroplast
Nucleus
Mitochondria
Ribosome
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Why does a gene of DNA have to be copied to mRNA (transcription)?
DNA doesn't carry genetic information
DNA has the wrong code
DNA is too large to leave the nucleus
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How is mRNA different to DNA?
(Select all that apply)
mRNA is double stranded, but DNA is single stranded
mRNA is longer than DNA
mRNA is single stranded, but DNA is double stranded
mRNA is shorter than DNA
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Once the mRNA leaves the nucleus and enters the cytoplasm, which sub-cellular structure (organelle) does it go to?
Chloroplast
Mitochondria
Cell membrane
Ribosome
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Which of the following describes translation?
The movement of DNA from the nucleus to the cytoplasm
The combination of amino acids to form a polypeptide
The copying of a single gene of DNA to mRNA
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How many bases are needed to code for one amino acid?
1
2
3
4
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What is the function of a ribosome?
To release energy from glucose
To build sugars from water and carbon dioxide
To assemble proteins from amino acids
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A chain of amino acids is called a ____________.
Carbohydrate
Polypeptide
Nucleic acid
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Which base does uracil replace in mRNA?
Thymine
Guanine
Cytosine
Adenine
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Different sequences of amino acids within a polypeptide will fold up into different shapes, and so form different .
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