Ģenētikas jēdzieni

Quiz
•
Science
•
12th Grade
•
Hard
Georgs Gibala
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cik hromosomu ir cilvēka kariotipā (somatiskā šūnā)?
46
42
47
40
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cik hromosomu ir cilvēka gametās?
23
21
22
24
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ja viens vecāks pēc kādas pazīmes ir homozigots recesīvs un otrs homozigots dominants, tad:
visi pēcnācēji būs heterozigotiski
puse pēcnācēju būs homozigotiski dominanti, bet otra puse - homozigotiski recesīvi
1/4 pēcnācēju būs homozigoti dominanti; 1/4 - homozigoti recesīvi; 1/2 - heterozigotiski
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Genotips ar apzīmējumu Xx, norāda uz:
heterozigotisku indivīdu
homozigotisku dominantu indivīdu
homozigotisku recesīvu indivīdu
dizigotisku indivīdu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Iedzimstošās pazīmes redzamā izpausme ir (atzīmē precīzāko):
genotips
fenotips
variācija
ekspresija
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Alēle ir:
gēna alternatīvās izpausmes
vienas pazīmes iespējamās variācijas
vairāku pazīmju kopums, kas veido genomu
abi pirmie
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gametas ir
dzimumšūnas
šūnas, kuras satur 50% jeb 1/2 ģenētiskā materiāla, kas nepieciešams pēcnācēju radīšanai
spermatozoīdi un olšūnas
visi nosauktie varianti
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