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Mgmt Test 1 - OB > Genetics > Flashcards

Genetics Flashcards

1
Q

What year was the human genome mapped

A

2003 - all 70-100,000 genes were identified

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2
Q

How many gene disorders were discovered due to the HGP

A

7000

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3
Q

the hgp was federally funded t or f

A

true

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4
Q

what is genetics

A

characteristics inherited from parents

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5
Q

how many chromosomes

A

46 (23 pairs) = 22 body cells(autosomes); 1 sex cell

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6
Q

what are genes

A

hereditary info at a particular site on a chromosome

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7
Q

what is a genome

A

total genetic makeup

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8
Q

alleles

A

different genes for same trait (blood type, color of hair)

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9
Q

homozygous

A

inherits same alleles from different parents

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10
Q

heterozygous

A

two different genes; one recessive, one dominant

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11
Q

karotype

A

picture of genes, map

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12
Q

only 1 copy of an abnormal x-linked recessive gene is enough to produce that characteristic in a male t or f

A

true

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13
Q

males have what chromosomes

A

x and y

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14
Q

1 copy of a dominant gene is enough to cause that characteristic to be expressed t or f

A

true

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15
Q

2 copies of a recessive gene are needed to cause a characteristic to be expressed t or f

A

true

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16
Q

females have xx chromosomes t or f

A

true

17
Q

autosomal dominant disorders

A

albino, dwarf, huntingtons, polycystic kidney disease

18
Q

autosomal recessive disorders

A

tay sachs, cystic fibrosis, sickle cell anemia

19
Q

x-linked recessive disorders

A

color blindness, hemophilia, muscular dystrophy

20
Q

x-linked dominant disorders

A

fragile x

21
Q

multifactorial disorders

A

cleft palate
cardiac defects
caused by combo of genetic/environmental fxrs

22
Q

dx

A

ultrasound
amniocentesis
chorionic villus

23
Q

chromosomes can be analyzed from

A

wbc, bone marrow, or fetal cells

Mgmt Test 1 - OB (11 decks)

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