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Title: A Level Biology - Nuclear Division
Description: Singapore-Cambridge A Level Biology notes on Nuclear Division. Meant as a condensed revision on the topic during final revision. Based entirely on the Learning Objectives for the topic in the syllabus.
Description: Singapore-Cambridge A Level Biology notes on Nuclear Division. Meant as a condensed revision on the topic during final revision. Based entirely on the Learning Objectives for the topic in the syllabus.
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Nuclear Division
Saturday, 21 June 2014
3:43 PM
Mitosis
Explain the importance of mitosis in growth, repair and asexual reproduction
...
Mitosis ensures that the two daughter nuclei formed contained genetically identical sets of genetic material as
the parent nucleus, with the same number of chromosomes and the same genetic make-up
...
This maintains the genetic stability of an organism
...
(Names of the main stages are expected)
Meiosis
Explain what is meant by homologous pairs of chromosomes
...
They are of the same size with centromeres at the same position with identical sequences of loci, and
pair with each other during Prophase I of meiosis
...
Bio Notes Page 1
Explain the need for reduction division (meiosis) prior to fertilisation in sexual reproduction
...
• To generate genetic variation, producing offspring that are genetically different from their parents
Explain how meiosis and random fertilisation can lead to variation
...
(Names of the main stages are expected, but not the subdivisions of prophase)
Bio Notes Page 2
Title: A Level Biology - Nuclear Division
Description: Singapore-Cambridge A Level Biology notes on Nuclear Division. Meant as a condensed revision on the topic during final revision. Based entirely on the Learning Objectives for the topic in the syllabus.
Description: Singapore-Cambridge A Level Biology notes on Nuclear Division. Meant as a condensed revision on the topic during final revision. Based entirely on the Learning Objectives for the topic in the syllabus.