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2.2.3  Voorsien EEN aanpassing van die stuifmeelkorrel vir…

2.2.3  Voorsien EEN aanpassing van die stuifmeelkorrel vir voortplanting. (1) 

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Hierdie is ‘n ekstra “opstelvraag”-antwoordboks.  Jy mag hie…

Hierdie is ‘n ekstra “opstelvraag”-antwoordboks.  Jy mag hierdie antwoordboks SLEGS gebruik as ‘n vorige een ontbreek het of nie behoorlik gefunksioneer het nie.  As jy wel besluit om hierdie antwoordboks te gebruik, nommer asseblief jou antwoord duidelik volgens die ooreenstemmende vraag.

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2.2.2  Deur watter soort bestuiwing word die stuifmeelkorr…

2.2.2  Deur watter soort bestuiwing word die stuifmeelkorrel na die vroulike keëls vervoer? (1) 

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3.3.3  Waarom is saadbanke belangrik? (1) 

3.3.3  Waarom is saadbanke belangrik? (1) 

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2.1.4  Vergelyk die doeltreffendheid van hierdie antibioti…

2.1.4  Vergelyk die doeltreffendheid van hierdie antibiotika teenoor die drie bakteriese stamme. (2) 

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When plasmids are used to produce a desired protein, the ___…

When plasmids are used to produce a desired protein, the ________.   A) plasmids multiply and produce the protein outside of the bacterium B) bacterial chromosome is genetically engineered, and the plasmid is used to help the bacterium replicate C) desired gene is inserted into the plasmid, and the plasmid is taken up by the bacterium D) bacterial genome and plasmid are inserted into the genome of the cell containing the desired gene

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You are attempting to link an individual to a crime. The onl…

You are attempting to link an individual to a crime. The only evidence you have is a tiny drop of blood. How can you use this drop of blood to definitively make the association?   A) You can use the sample to determine the individual’s blood type. B) You can use gel electrophoresis to determine the length of the DNA found in the sample. C) You can use PCR to increase the amount of DNA available for STR analysis. D) You can use the sample to check for the presence of the Rhesus factor.

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“Sticky ends” are ________.   A) single-stranded ends of fra…

“Sticky ends” are ________.   A) single-stranded ends of fragments of double-stranded DNA B) regions of double-stranded DNA that can be cut by a restriction enzyme C) portions of DNA used as markers for STR analysis D) regions of DNA amplified in PCR

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Cutting DNA with a particular restriction enzyme produces DN…

Cutting DNA with a particular restriction enzyme produces DNA fragments that can be separated by ________.   A) gel electrophoresis B) enzymes C) recombinant DNA D) plasmids

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Gene flow is accomplished by ________.   A) migration B) sex…

Gene flow is accomplished by ________.   A) migration B) sexual recombination C) mutation D) natural selection

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