Lecture 16: Chromosomes

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Last updated 8:15 PM on 8/8/26
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7 Terms

1
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Which stage of mitosis con chromosomes be easily distinguished and why?

Metaphase, condensed

2
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How many copies of each chromosome do diploid eukaryotic cells carry?

Two

3
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Are each chromosome pair the same size?

No, vary in size + DNA sequence

4
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Briefly outline the procedure for a metaphase spread

Spin and drop cells onto a microscope slide then use probes/ stains specific different chromosomes allowing you to paint chromosomes.

5
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What spread? is a strength of a metaphase spread?

It allows cross over identification

6
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Karyotype

Organised representation of all the chromosomes in a eukaryotic cell at metaphase

7
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How many pairs of chromosomes do eukaryotic cells have?

23 - 22 paid of autosomes