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Summary Biology study notes
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  • Course
  • Biology
  • Institution
  • 12th Grade

Are you struggling to keep up with the complex concepts and terminology in your Year 12 biology class? Look no further! Our comprehensive study notes cover all the key topics and provide detailed explanations, diagrams, and examples to help you understand and retain the information. With our study ...

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  • May 22, 2024
  • 104
  • 2023/2024
  • Summary

Subjects

  • year 12
  • biology
  • genetics
  • hsc
  • summary notes
  • powerpoint
  • study cards
  • palm cards

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  • Biology
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YEAR 12




BIOLOGY

,Reproduction
Process by which organisms
replicate or create new
organisms (pass/ replication
genetic information)


Reproduction ensures the
species survival/continuity

,Asexual vs sexual reproduction

Sexual Asexual
• Production of new living organism by • Reproduction by which offspring arise
combining genetic information of two single organism and inherit only one se
individuals of different sexes genes. (therefore clones)
• Meiosis involved to produce gametes • Mitosis only, not meiosis
• More variation in species • Offspring genetically identical, less var
species
• Requires fertilization
• Dominant form of reproduction and
• Dominant form of reproduction in
unicellular,
multicellular plants and animals
• E.g. Spore production in fungi
• E.g. mammals

, Asexual reproduction
• Based on mitotic division of nucleolus,
• Is rapid and effective (exponential growth)
• Different types include:
• Binary fission: produces two daughters cells that are genetically identical to parent cell
occurs via mitosis e.g. bacteria
• Spores: Hardy self contained capsules that contains DNA, Single celled structures deta
from the parent, develop into a new individual when conditions are favorable, they are
produced small and light can be transferred easily by wind water and animals. E.g.
prokaryote’s, fungi, plants, protists

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