Genetic variation in bacteria

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  • Created by: elyornais
  • Created on: 11-04-15 21:45
How do bacteria increase diversity?
Mutation and Conjugation.
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What is a mutation?
Changes in DNA that result in different characteristics.
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What happens if the base sequence of a DNA molecule changes?
May result in a different sequence of amino acids being coded for, leading to a different polypeptide so a different protein.
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What is conjugation?
When one bacterial cell transfers DNA to another bacterial cell.
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What happens during conjugation?
Cell produces thin projection that meets another cell, forms conjugation tube->Donor cell replicates 1 of its plasmids->Circular shape made linear+passes along tube->only a portion is transferred->Recipient acquires new characteristics from donor.
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What is horizontal gene transmission?
When DNA in the form of genes can be passed from one species to another species.
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What is vertical gene transmission?
Where genes are passed down from one generation to another generation of the same species.
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Other cards in this set

Card 2

Front

What is a mutation?

Back

Changes in DNA that result in different characteristics.

Card 3

Front

What happens if the base sequence of a DNA molecule changes?

Back

Preview of the front of card 3

Card 4

Front

What is conjugation?

Back

Preview of the front of card 4

Card 5

Front

What happens during conjugation?

Back

Preview of the front of card 5
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