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Prokaryotic DNA is smaller than eukaryotic. Please give two other ways prokaryotic DNA differs from eukaryotic.

Circular2) Polycistronic (genes can be expressed together)3) No introns/no splicing of genes4) Does not form chromatin (although explain to student that this is an oversimplification, prokaryotes do indeed f...
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Answered by Duncan W. Biology tutor
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Describe the structure of DNA.

DNA (deoxyribonucleic acid) is a polymer made up of two nucleotide chains held together by hydrogen bonding between nucleotides in a double helix shape. A nucleotide is made up of a deoxyribose sugar, a base...
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Answered by Sim B. Biology tutor
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Explain the lock and key enzyme hypothesis

Enzymes are specific: meaning that an enzyme's active site is complementary to a particular substrate. In the lock and key hypothesis, a substrate that is complementary to the enzyme binds to the enzyme's ac...
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Answered by Noor A. Biology tutor
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what are three main functions of the human liver?

detoxification: liver cells contain enzymes which break down toxins for example catalase, this enzyme is responsible for converting toxin hydrogen peroxide into water and oxygen. enzymes can detoxify molecul...
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Answered by Megan B. Biology tutor
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Describe the structure of proteins

-Primary structure is the number and sequence of amino acids in a polypeptide.-The secondary structure of a polypeptide is the formation of alpha helices and beta- pleated sheets stabilised by hydrogen bondi...
Answered by Biology tutor
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