AQA Biology- unit 2: 8.3 DNA and chromosomes

please feel free to ask any questions and also, let me know if you notice errors or want me to add anything so i can improve it. thank you

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  • Created by: sabrina76
  • Created on: 15-01-13 22:17
what is a chromosome? and what does it do?
a structure made of proteins and DNA, passes on hereditary information
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what is the function of the protein found in chromosomes?
it fixes the DNA strand into position
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how is the whole length of a DNA molecule compacted into a chromosome?
it is highly coiled and folded/looped many times over.
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chromosomes are only visible as distinct structures...
when the cell is dividing
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each gene occupies a specific position along the DNA molecule called a...
locus
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what is an allele?
an alternative/different form of a gene that is found at the same place on a chromosome
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Each chromosome consists of two identical...
chromatids
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Each chromosome contains...
one long DNA molecule
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Other cards in this set

Card 2

Front

what is the function of the protein found in chromosomes?

Back

it fixes the DNA strand into position

Card 3

Front

how is the whole length of a DNA molecule compacted into a chromosome?

Back

Preview of the front of card 3

Card 4

Front

chromosomes are only visible as distinct structures...

Back

Preview of the front of card 4

Card 5

Front

each gene occupies a specific position along the DNA molecule called a...

Back

Preview of the front of card 5
View more cards

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