All cells arise from other cells

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Biology

Cells

A-Level Biology

AQA

Cell Structure

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7 Terms

1
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What is a chromosome?

A DNA molecule in a condensed form wrapped around histone proteins

2
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What are homologous pairs of chromosomes?

Chromosomes with the same genes but different alleles

3
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State the process of interphase?

  • Proteins are made
  • New organelles are made
  • DNA is replicated
4
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-New organelles are made

5
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State the behavior of chromosomes in prophase

-They condense and become visible

6
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  • Each chromosome is made up of 2 sister chromatids joined at the centromere (Individual marking point)

Prophase

7
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State what happens in the cell during prophase

-The centrioles move to the poles of the cell and make spindle fibers