
Determinismul genetic al sexelor. Mutageneza cl9
Presentation
•
Biology
•
9th Grade
•
Hard
Mădălina Mardare
FREE Resource
7 Slides • 12 Questions
1
2
Multiple Choice
Care este combinația de heterozomi pentru fetițe?
XZ
XX
XY
YY
3
Multiple Choice
Care este combinația de heterozomi pentru băieței?
XZ
XY
YY
XX
4
5
6
Multiple Choice
Mutatiile sunt modificari programate in structura ADN.
Adevarat
Fals
7
8
Multiple Choice
Mutatiile genomice:
Schimba succesiunea unui numar mic de perechi de nucleotide
Modifica numarul total de cromozomi
Schimba pozitia unor fragmente cromozomale
9
Multiple Choice
Mutatiile care schimba succesiunea unui numar mic de perechi de nucleotide se numesc:
Cromozomiale
Genomice
Genice
10
11
Multiple Choice
Aneuploidiile:
variația nr de cromozomi
multiplicarea nr de seturi ce cromozomi
sunt incompatibile cu supraviețuirea
12
Multiple Choice
La nulisomie:
lipsește un cromozom
lipsește o pereche de cromozomi
apare un cromozom în plus într-o pereche
o pereche de cromozomi este dublată
13
Multiple Choice
Boală genetică determinată de apariția unui cromozom suplimentar la perechea 21.
sindromul Turner
sindromul Klinefelter
trisomia X
sindromul Down
14
15
Multiple Choice
Sindrom determinat de deleția brațului scurt al cromozomului din perechea 5
sindromul Down
Anemia falciformă
sindromul Marfan
Sindromul Cri-du-chat (țipăt de pisică)
16
17
Multiple Choice
Antibioticele sunt agenti mutageni:
Biologici
Fizici
Chimici
18
Multiple Select
Factori mutageni fizici sunt:
radiaţii ultraviolete
antibiotice
virusuri
raze X
19
Multiple Select
Factori mutageni chimici sunt:
virusuri
șocuri termice
pesticide
coloranţi
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