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Die canolablom en -landery

Genetika

  • Ons kennis van selle en hoe hulle reageer en gemanipuleer kan word, is besig om vinnig toe te neem. Woorde soos kloning, genetiese manipulasie, GMO’s en geenterapie is deesdae meer en meer in die nuus. Selbiologie, Genetika en verwante velde gaan toenemend belangrike studievelde word.
  • Belangrike inligting word oorgeplaas tydens die bevrugtingsproses. Hierdie inligting kan beskryf word as die plan in terme waarvan die nuwe organisme ontwikkel. Die plan is vasgelê in ‘n spesiale molekule, bekend as DNA. DNA bestaan uit kodes. Die kodes bepaal al die eienskappe van die nuwe organisme.
  • Hierdie kodes kom in kort stukkies voor wat ons gene noem. Die studie van die molekule en strukture soos gene, en die wyse waarop dit van geslag na geslag oorgedra word, noem ons genetika.

Aktiwiteit 2:

Om inligting te versamel oor genetiese manipulasie

[lu 1.7, 2.2]

Doen die volgende op jou eie:

a) Gaan na die biblioteek en versamel inligting oor verskillende tipes plante wat geneties aangepas is, om hoër oeste te verseker. Dit is ‘n voorbeeld van hoe die tegnologie ingespan word vir ontwikkeling. Skryf in jou eie woorde wat jy onder genetiese manipulasie verstaan, en wat met tegnologie bedoel word. Vind uit wat in laboratoriums gebeur, en hoe wetenskaplikes op verskillende terreine bydra tot die ontwikkeling van ‘n land.

b) Besoek onder andere die volgende webtuiste op die internet:

Google.com:

Saby Ganguly: From Bengal Famine to the Green Revolution (Gebruik die titel of kernwoorde in die titel vir ‘n soektog.

Peter Rosset,Joseph Collins, Francis Moore Lappé: Lessons from the Green Revolution , Tikkun Magazine, March/April 2000

Bespreek die volgende stellings in pare:

Aktiwiteit 3:

Om die gevolge van die gebruik van gifstowwe op die mens en omgewing te bepaal

[lu 2.1]

Plaagdoders kan aangewend word om oeste teen beskadiging deur insekte te beskerm. Dit kan egter ook ‘n negatiewe invloed op die ekosisteem hê.

  1. Kry duidelikheid oor die betekenis van hierdie stelling.
  2. Vind uit watter nadelige gevolge die gebruik van gifstowwe vir die mens en die omgewing kan inhou.

Aktiwiteit 4:

Om te bepaal of voedselproduksie in die rsa voldoende is om in die mense se behoeftes te voorsien

[lu 2.3]

Die uitdaging wat die landbousektor in die gesig staar, is om genoegsaam te produseer sodat daar in die wêreld se snel groeiende bevolking se behoeftes voorsien kan word. In sekere dele van die wêreld is daar egter reeds mense wat nie genoegsaam gevoed kan word nie, of selfs sterf weens ‘n gebrek aan voedselvoorrade. Volgens syfers van die Wêreldbank was daar teen die jaar 2000 meer as 840 miljoen mense in die wêreld wat nie genoeg voedsel gehad het om te eet nie. Daar sterf gemiddeld 30 mense per minuut weens ‘n gebrek aan voedsel in ontwikkelende lande. Die produksie van voedsel sal met 50% moet toeneem, om teen die jaar 2025 die addisionele twee biljoen mense te voed. Dit maak die huidige situasie baie meer kompleks as voor die aanvang van die Groen Rewolusie in die 1970’s.

  1. Gebeur dit ook in ons land?
  2. Is daar ook mense wat te veel eet?

Questions & Answers

what does preconceived mean
sammie Reply
physiological Psychology
Nwosu Reply
How can I develope my cognitive domain
Amanyire Reply
why is communication effective
Dakolo Reply
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
Wekolamo Reply
please i need answer
Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Manix Reply
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
JESSY Reply
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
Simon Reply
compare and contrast skinner's perspective on personality development on freud
namakula Reply
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
Amesalu Reply
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
Zyryn Reply
good👍
Jonathan
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
Kelu Reply
interpersonal relationships
Abdulfatai Reply
What would be the best educational aid(s) for gifted kids/savants?
Heidi Reply
treat them normal, if they want help then give them. that will make everyone happy
Saurabh
What are the treatment for autism?
Magret Reply
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities. before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue.. sometimes due to these physical problems..the diagnosis may be misdiagnosed. treatment for autism. well it depends on the severity. since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
Jharna
child interact with other kids under doc supervision. play therapy. speech therapy. Engaging in different activities that activate most parts of the brain.. like drawing..painting. matching color board game. string and beads game. the more you interact with the child the more effective
Jharna
results you'll get.. please consult a therapist to know what suits best on your child. and last as a parent. I know sometimes it's overwhelming to guide a special kid. but trust the process and be strong and patient as a parent.
Jharna
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Source:  OpenStax, Aardrykskunde graad 9. OpenStax CNX. Sep 14, 2009 Download for free at http://cnx.org/content/col11054/1.1
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