Die diagramme hieronder toon twee fases van meiosie - NSC Life Sciences - Question 3 - 2020 - Paper 1
Question 3
Die diagramme hieronder toon twee fases van meiosie.
Diagram 1
Diagram 2
3.1.1 Identifiseer deel A.
3.1.2 Identifiseer die fase wat deur diagram 1 voorgestel wor... show full transcript
Worked Solution & Example Answer:Die diagramme hieronder toon twee fases van meiosie - NSC Life Sciences - Question 3 - 2020 - Paper 1
Step 1
Identifiseer deel A.
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Answer
Die struktuur van deel A is die sentriole of sentrosome.
Step 2
Identifiseer die fase wat deur diagram 1 voorgestel word.
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Answer
Diagram 1 stel die anafase van meiosis voor.
Step 3
Beskryf die gebeurtenis te wete van deur diagram 2 voorgestel word, plaasvind.
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In diagram 2 vind die verdeling van die sentrome voor, waar die chromosooms na teenoorgestelde pole beweeg.
Step 4
Noem die proses wat veroorsaak dat die chromosoom 'n kombinasie van gene het, soos in die diagram voorgestel.
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Die proses is oorkruising, waar homoloog pare DNA tydens meisose geneetiese variasie skep.
Step 5
Gee EEN rede waarom die proses in VRAAG 3.4 genoem.
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Die proses in VRAAG 3.4 is belangrik omdat dit genetiese diversiteit bevorder.
Step 6
Indien hierdie in menslike selle is, hoeveel chromosoom so tydens die fase in diagram 1 voorgestel is, te verwag.
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In menslike selle tydens die anafase van meiosis, sal daar 23 chromosoomparis wees, wat sien as 46 chromosooms in totaal.
Step 7
Verdudlik waarom hulle struktuurel verskillend is.
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Struktuur B en C is verskillend omdat hulle verskillende fases van die meisose verteenwoordig, wat lei tot verskillende eienskappe en funksies in die voortplanting.
