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BIOL 239 > Set 7 > Flashcards

Set 7 Flashcards

1
Q

what is aneuploidy?

A

the loss or gain of one or more chromsomes

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2
Q

what is monosomic ?

A

where a person is missing 1 chromsomes (2n-1)

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2
Q

what are aneuploids ?

A

individuals who chromsome numbers in the haploid is not similar to others

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3
Q

what is trisomic ?

A

where a person has an additional chromsomes (2n+1)

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4
Q

what is tetrasomic ?

A

when a person has an additional 2 extra chromsomes (2n+2)

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5
Q

is monosomy lethal to humans

A

yes

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6
Q

is trisomy lethal to humans

A

not always lethal

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7
Q

how can somatic aneuploidies problematic

A

large chromsomes like 1 & 2 when trisomied are automatically killed due to excess protein produced

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8
Q

which type trisomy stay alive

A

trisomy 21 ,13 and 18

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9
Q

what is X- inactivation ?

A

where only one X is technically working that why we have triple x as the rest of the X’s are barr bodies near the nuclear memvrane

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10
Q

does trisomy 21 happens in MI, MII or both

A

both

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11
Q

does monosomy 21 happen in MI,MII or both

A

both

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12
Q

does kleinfelter (XXY) result in NDJ MI, MII or both WITHIN FEMLAES

A

both within females

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13
Q

does turner (XO) result from NDJ in MI,MII or both in FEMAMLES W

A

both

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14
Q

does turner (XO) result from NDJ in MI,MII or both in MALES

A

Both

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15
Q

does kliefelter result from NDJ in MI,MII or both in MALES

16
Q

does triple x result from NDJ in MI,MII or both in MALES

17
Q

Can aneuploidy happen in mitosis ?

18
Q

what is the type of aneuploody can happen in mitosis ?

A

NDJ & Chromsomes loss at anaphase

19
Q

what is the results of NDJ in mitosis?

A

trisomy and monsomy

20
Q

what is the results of chromsomes lose in mitosis ?

A

normal and monsomy

21
Q

what is gynandromorph ?

A

large patches of male and female phenotypes

22
Q

what is euploidy ?

A

individuals that have a complete sets of chromsome; typically diplod

23
Q

what is polyploids

A

carry three or more complete sets of chromsomes ( triploid 3x)

24
Q

what is monploid

A

only has one set of chromomsomes tend to infetile

25
Q

what are 3 example of haplodiplody ?

A

ants,bees and wasps

26
Q

what is haplodiplody ?

A

where unfertilized eggs (haploid become males
and fertilized eggs ( diploid become females

27
Q

what is parthenogenesis and what is an example ?

A

komodo dragon and its reproduction without fertilization

28
Q

triploids are mostly sterile

29
Q

what is a zygote

A

a diploid cell resulting from the fusion of two haploid gametes

BIOL 239 (19 decks)

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