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Genetics

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Hettie Walker

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Cards in this guide (5)
Why is protein synthesis different in prokaryotes and eukaryotes

In prokaryotes, DNA is stored in the cytoplasm.

also prokaryotes have no nucleus

In prokaryotes, transcription and translation happen at the same time.

What happens next after the ribosome reaches the start codon

tRNA molecules attach to codons.-apex

How are mutations prevented during DNA replication

DNA polymerase checks DNA for errors.
DNA polymerase checks DNA for errors by breaking the hydrogen bonds between the paired nitrogen bases in the DNA molecule. This causes the molecule to separate into two individual strands.

Which best describes a difference between transcription and DNA replication-

They use different nucleotide bases. DNA replication uses thymine. Transcription uses uracil

Why is it more important to check for Error during DNA replication and then during protein synthesis

Because during replication a new copy of the DNA is made form which proteins will eventually be synthesized. Replication copies the mistake, synthesis merely empresses it.

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