bio unit 3 human gentics Flashcards

1
Q

what is a karyotype

A

it shows the complete diploid set of chromosomes in pairs

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2
Q

genome

A

full set of genetic info an organism carries in DNA

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3
Q

what can an karyotype show

A

it can show extra, missing, enlarged or shortened chromosomes.

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4
Q

femal

A

xx

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5
Q

male

A

xy

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6
Q

non-disjunction

A

an error duing gamete formation in meiosis. where the homologous chromosomes do not seprate

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7
Q

what does non-disjunction cause

A

extra chromosomes or less chormosomes. this means that every single body in the cell will have one less or more.

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8
Q

down syndorme

A

there is an extra chromosome in the 21st. a non- disjunction.

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9
Q

autosomal chromosomes

A

the 22 pairs of nn-sex related chromosomes.

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10
Q

sex chromosomes

A

the 2 chromosomes determine if boy or girl.

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11
Q

y chromoes

A

only the y chromosmes determines is male.

it controlled the y linked tiats.

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12
Q

x chromosomes

A

-larger
- can not have a baby with out it
- controlls the x linked traits.

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13
Q

what is bood

A

autosomed chromosomes

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14
Q

recessive autosomal disorder

A
  • the disorder there in ressive homozygous
  • carriers are hetrozygous
  • and homozygous domnat is a normal cell.
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15
Q

dominant autosomal inheritance

A
  • anything with capital has the disorder. so that meas that homogyous dominat and hetrozygous.
  • ressive homozygous is normal.
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16
Q

sex linked disorders

A

linked to the x or y chromosome

17
Q

x-linked ressive disorders

A

more common in males because they only have one x.

  • no lettr with y
  • Hh carrier
  • h or hh has disorder
    -HH H does not
18
Q

common x-linked ressive disorders

A

colorblindness and hemophilia

19
Q

genotypes + phynotypes

A
  • paretns
  • childern