chromosal disorders🐿🦕🎥 Flashcards

1
Q

aneuploidy

eg- downs syndrome, turners sy. ,

A

segregation failure—- of chromatids during cell div. cycle resultss

in gain or loss of chromsome

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2
Q

polyploidy

eg.- in plants

A

failure of cytokinesis after telophase stage of cell div. in a whole set of chrm. in an organism

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3
Q

AUTOSOMAL aneuploidy—– change total no. of chromosome

A

downs syndrome
edward syndrone
patau syndrome
cat cry syndrome

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4
Q

downs syn.- this causes of this

A

+ce of add copy of chrom.21 [ trisomy of 21 ]

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5
Q

downs- described by

A

langdon down - 1866

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6
Q

downs- features

A
  1. short statured, small round head
  2. furrowed toungue
  3. partially open mouth
  4. palm broad
  5. charecteristic palm crease
  6. physical, psychmotor n mental detard
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7
Q

edward syndrone

A

18th trisomy

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8
Q

patau

A

13th trisomy

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9
Q

cat cry syndrome-

A

partial delete of short arm of 5 th chrm.

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10
Q

SEX CHROM. aneuploidy

A

klinefilter
turner
super male// jacob
super female// multi xx female

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