New cells have the same number of chromosomes are parent
Happens in skin cells
Two divisions occur
Identical cells are formed
Two new cells are formed as a result
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Slide 1: Sleepvraag
BiologyUpper Secondary (Key Stage 4)GCSE
In deze les zitten 45 slides, met interactieve quizzen en tekstslides.
Lesduur is: 50 min
Onderdelen in deze les
Mitosis
Meiosis
Genetic Mixing happens
New cells show variation
Gamete production occurs
New cells have the same number of chromosomes are parent
Happens in skin cells
Two divisions occur
Identical cells are formed
Two new cells are formed as a result
Slide 1 - Sleepvraag
What is the gap between neurones called?
What hormone is released by the testes?
What is meant by extinction?
What is genetic engineering?
Syntax
Synapse
Adrenaline
Testosterone
No individuals in a species still alive
One or two individuals in a species still alive
Modifying the genome
Fixing the genome
Slide 2 - Sleepvraag
Slide 3 - Tekstslide
Slide 4 - Tekstslide
Slide 5 - Tekstslide
What is the most important feature for corn?
Largest kernels
Most corn kernels
Sweetest kernels
Pest resistant
Slide 6 - Sleepvraag
Choose parents that show these characteristics and breed them
Breeding Zone
Slide 7 - Sleepvraag
Breed the best offspring with the desired phenotype to produce the next generation.
Breeding Zone
Slide 8 - Sleepvraag
Slide 9 - Tekstslide
Slide 10 - Tekstslide
Some cats are selectively bred so they do not cause allergies in people. Suggest two other reasons people may selectively breed cats.
Slide 11 - Open vraag
Selective breeding could cause problems of inbreeding in cats. Describe one problem inbreeding causes.
Slide 12 - Open vraag
Slide 13 - Tekstslide
Different cats produce different amounts of Fel D1. A cat has been bred so that it does not produce Fel D1. Explain how the cat has been produced using selective breeding.