In deze les zitten 18 slides, met interactieve quizzen, tekstslides en 2 videos.
Onderdelen in deze les
Basics 3 - Sexual reproduction
Slide 1 - Tekstslide
Today's plan
1. HW Qs??
2. Review last lesson
3. Sexual reproduction
4. Asexual reproduction
4. Twins
Slide 2 - Tekstslide
What is the difference between an allele and a gene?
Slide 3 - Open vraag
Stacey says: “Eye colour is a good example of an allele.” Max says: “I disagree, eye colour is not an example of an allele but of a gene.” Explain who is right.
Slide 4 - Open vraag
Fertilisation
23 chromosomes mother
23 chromosomes father
46 chromosomes in the fertilised egg cell
(= 23 pairs of chromosomes)
body cells ovary cells testes cells body cells
egg cell
sperm cell
fertilisation
zygote
Slide 5 - Tekstslide
Slide 6 - Tekstslide
Slide 7 - Tekstslide
Slide 8 - Tekstslide
Slide 9 - Tekstslide
sex chromosomes
Female:
Male:
Slide 10 - Tekstslide
Karyotype
Male karyotype Female karyotype
Slide 11 - Tekstslide
How many chromosomes does this person in the karyogram have?
Slide 12 - Open vraag
Slide 13 - Video
Some plants can be regrown completely from a single branch. Is this sexual or asexual reproduction?
A
Sexual reproduction
B
Asexual reproduction
Slide 14 - Quizvraag
Slide 15 - Tekstslide
Slide 16 - Video
Marc and Kevin are identical twins. Marc marries to Susan and Kevin marries Erica. Susan and Erica are also identical twins. When both couples have a baby boy, are those baby boys geneticall identical? Explain your answer.