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CELS191 > Lecture 24 > Flashcards

Lecture 24 Flashcards

1
Q

What is aneuploidy?

A

Loss or gain of one or a few chromosomes

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2
Q

What is polyploidy?

A

possession of multiple entire sets of chromosomes

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3
Q

What are some other chromosomal aberrations?

A

Loss, gain or rearrangement of parts of chromosomes

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4
Q

What is ploidy?

A

The number of sets of chromosomes in a cell.

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5
Q

What happens when there is an odd set of chromosomes?

A

They cannot divide evenly
Gametes are unbalanced
Usually sterile

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6
Q

What are the other chromosomal aberrations?

A
  • Deletion
  • Duplication
  • Inversion
  • Translocation
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7
Q

What is deletion?

A

Removal of a segment of chromosome

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8
Q

What is duplication?

A

Repitition of a segment of chromosome

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9
Q

What is Inversion?

A

Reverses a segment of chromosome

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10
Q

What is translocation?

A

Movement of a segment of chromosome from one chromosome to another

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11
Q

What are two examples of chromosomal rearrangement in humans?

A
  • Lejeune Syndrome

- Williams-Beuren Syndrome

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CELS191 (11 decks)

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