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  • grade 12 life sciences term 1 -term 4 video links

grade 12 life sciences term 1 -term 4 video links

  • Posted by SAIDI
  • Date 14/09/2021
TERM 1 WORK (VIDEOS)
TOPICSUBTOPICVIDEO LINKNOTESPAST PAPER
        DNA CODE OF LIFE  https://youtu.be/D4T7ODkqO_c    https://youtu.be/D4T7ODkqO_c  https://thundereduc.com/https://thundereduc.com/
  DNA DISCOVERY Simplified  https://youtu.be/Sqf7hBSC0rchttps://thundereduc.com/https://thundereduc.com/
  DNA STRUCTURE    https://youtu.be/TdQpAfTq7Wk    
  DNA BASE CALCULATION  https://youtu.be/rIuKxOalNgA  
  DNA PROFLING AND RNA STRUCTURE  https://youtu.be/2A5apLIG7Nk  
  Protein synthesisCOMINGSOON 
MEISOSISAllCOMINGSOON 
  REPRODUCTION    Development of the zygote until implantationhttps://youtu.be/j5Y95j6vRYw  
MENSTRUAL CYCLE uterine cycle & ovarian cycle  https://youtu.be/Gx52nSW7q5I  
MORECOMINGSOONIN2days
             
GENETICS
Introduction to geneticshttps://youtu.be/gL4ZTMWr1mQ 
Monohybrid cross (how do we mark genetic crosses)https://youtu.be/IeQuNBZDFNU
TYPE OF DOMINANCE, explainedhttps://youtu.be/9v283jVvUvc
Sex determination 
Blood grouphttps://youtu.be/T0BYCpn7rPE
Dihybrid cross   
Pedigree (sex and non sex linked) 
 Biotechnology and genetic engineeringCOMINGSOON
    
      HUMAN EYEIntroduction to Human eye Structure and functionhttps://youtu.be/ouWDYGFw6As  
Pupillary mechanism (dim and bright light)https://youtu.be/_3qPt7aXxD8  
Accommodation (near and far vision)https://youtu.be/0Avr1LzGs0M  
Eye defects (short sightedness, long sightedness, astigmatism & cataracts)https://youtu.be/cBdsfVFBH5k  
      HUMAN EARIntroduction to Human ear and hearinghttps://youtu.be/CJ3pvNfFUkc  
HEARING PROCESShttps://youtu.be/mMDwTI1jQUQ  
Process of Balance  & hearing defects (middle ear infection and deafness)https://youtu.be/IgPFmRXuBpk  
      THE BRAIN AND REFLEX ARCIntroduction to nervous system And brainhttps://youtu.be/wcDz-a4No0s  
Types Nevers (neurons) Motor, sensory and connectorhttps://youtu.be/yObTZzrr2xI  
Reflects arc (and questions)https://youtu.be/yObTZzrr2xI?t=411  
 SynapseCOMINGSOON 
     
              ENDOCRINE AND HOMEOSTASISEndocrine system (endocrine glands)https://youtu.be/x9OdFlctD-s  
Homeostasis of glucose andhttps://youtu.be/z4yDgQGJ0kM  
Salt balance (aldosterone)  https://youtu.be/d3olBXHOWMs?t=448  
  Osmoregulation (ADH) Water balance regulation  https://youtu.be/d3olBXHOWMs?t=179  new    
Thermoregulation (temperature)      https://youtu.be/z4yDgQGJ0kM?t=900     new  
https://youtu.be/z4yDgQGJ0kM?t=550     old    
     
     
     
     
PLANT RESPONSE TO NVIRONMENTINTRODUCTIONhttps://youtu.be/ptaSiUqQjW0  
Geotropism and photo tropismhttps://youtu.be/FJITdbC4I5Q  
                  EVOLUTION BY NATURAL SELECTIONIntroduction to evolution (theory vs hypothesis)https://youtu.be/Sx2pBsmbLm8  
Evidences for evolutionhttps://youtu.be/QceKF1hcWHM  
Continuous and Discontinuous variationhttps://youtu.be/I7iwAgcOI_E  
THEORIES OF EVOLUTION (Lamarckism vs Darwinism)https://youtu.be/A2e73Juqx0Y  
Punctuated equilibrium vs gradualismhttps://youtu.be/K6cK34QowPY  
artificial selection Vs natural selectionhttps://youtu.be/1lRXYacWHvo  
SPECIATION (allopatric)https://youtu.be/qcTjZkGG2gM  
  Present day evolution (drug resistance eg Bacteria, HIV, mosquitoes )https://youtu.be/_0oyan0tpbY  
        HUMAN EVOLUTION         
Introduction to human evolution
  https://youtu.be/LOsNfpmGvnY  
differences between   humans and apeshttps://youtu.be/yhH6W3lNEmI  
Bipedalism Vs Quadrupedalismhttps://youtu.be/JuhBWGUW15s  
Fossils, Mt DNA, Cultural evidences    https://youtu.be/JW10yRgqGYE  
  Out of Africa hypothesishttps://youtu.be/H–P1cWBvAo  
Understanding phylogenetic tree generalhttps://youtu.be/QEGOK5hNGfE  
phylogenetic tree (explained in detail)  https://youtu.be/QEGOK5hNGfE  
     
     
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