Uned 2.4 Amrywiad ac esblygiad
Quiz
•
Biology
•
11th Grade
•
Hard
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae gametau’n cael eu cynhyrchu gyda hanner y wybodaeth enetig am y ddau riant. Mae cyfuniad o’r gametau hyn wrth ffrwythloni yn cynhyrchu epil newydd. Pa fath o atgenhedlu yw hwn?
Rhywiol
Anrhywiol
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae epil yn dangos amrywiad genynnol ac fel rhywogaeth mae'n fwy tebygol o oroesi yn ystod newid amgylcheddol sydyn Pa fath o atgenhedlu yw hwn?
Rhywiol
Anrhywiol
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae epil yn cael ei gynhyrchu gan 1 rhiant. Nid oes unrhyw egni yn cael ei wastraffu ar gametau a dod o hyd i gymar sy’n golygu bod sawl epil yn gallu cael ei gynhyrchu’n gyflym. Pa fath o atgenhedlu yw hwn?
Rhywiol
Anrhywiol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dim amrywiad genynnol. Mae epil yn glôn o'r rhiant; maen nhw'n enetig unfath.. Pa fath o atgenhedlu yw hwn?
Rhywiol
Anrhywiol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nodweddion yw’r rhain sy’n cael eu hachosi gan enynnau, a etifeddwyd o DNA rhieni. Er enghraifft, lliw llygaid, math o waed, gallu rholio’r tafod, lliw blodyn.
Ffactorau genynnol
Ffactorau amgylcheddol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nodweddion yw’r rhain sy’n newid oherwydd yr amgylchedd. Er enghraifft, datblygiad iaith, tatŵs a thyllau yn y corff, cystadleuaeth mewn planhigion yn lleihau mynediad at olau neu ddŵr yn cyfyngu tyfu.
Ffactorau genynnol
Ffactorau amgylcheddol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw esblygiad
Newid mewn rhywogaethau dros amser.
Amrywiadau mewn rhywogaeth y gellir eu hetifeddu (etifeddol).
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