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Specific Objectives
Students should be able to:
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Explanatory notes
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1
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describe the process of mitosis
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Definition of mitosis; movement of chromosomes during mitosis (names of stages not required); diagrams required.
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2
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explain the importance of mitosis;
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production of identical daughter cells having the same number (diploid)
and !ype of chromosomes as the parent cell (clones); growth, repair and asexual reproduction
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3
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describe the process of meiosis |
Definition of meiosis; movement and separation of homologous chromosomes and the subsequent separation of
chromatids (names of stages not required); diagrams required.
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4
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explain the importance of meiosis; |
Importance of halving the chromosome number (haploid) in the formation of gametes; importance of meiosis in introducing variation into gametes.
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| 5. |
explain why genetic variation is important to living organisms; |
Examples of variation -
height,
weight,
gender (sex),
blood type,
tongue roling,
mention antibiotic resistant bacteria.
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| 6. |
distinguish between genetic variation and environmental variation; |
Include difference between continuous and discontinuous variation; mutation, (Down's syndrome, albinism)
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| 7. |
explain the inheritance of a single pair of characteristics (Monohybrid Inheritance);
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(a) DNA/RNA, chromosomes, allele, dominant, recessive, homozygous, heterozygous, gene, genotype and phenotype.
(b) Monohybrid inheritance to include albinism, sickle cell anemia, tongue rolling; sex linkage (haemophilia, colour blindness)
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| 8. |
describe the inheritance of sex in human beings; |
Include the role of sex chromosomes.
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| 9. |
explain the concept of genetic engineering; |
Changing the traits of one organism by inserting genetic material from another organism
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| 10. |
discuss the advantages and disadvanges of genetic engineering; |
include recombinant DNA in the manufacture of insulin; its application in the production of food and medicine.
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| 11. |
use tables charts and diagrams to represent data on heredity and variation. |
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human and social biology
couldnt ask for anything better