5.2 what are the chances?

It runs in the family




Benodigheden
- Pen, pencil
- note book
- binder

For a mark
- No


Lessonup
- Yes
1 / 12
next
Slide 1: Slide
BiologieMiddelbare schoolvwoLeerjaar 3

This lesson contains 12 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 35 min

Items in this lesson

It runs in the family




Benodigheden
- Pen, pencil
- note book
- binder

For a mark
- No


Lessonup
- Yes

Slide 1 - Slide

Question for your name tent:
If you would be a fruit or a vegetable,
what would you be and why?

Slide 2 - Slide

today''s program 

different chromosomes, different purposes 

learning objectives: you can 
- explain the difference between autosomes and sex-chromomes, between somatic cells and sex cells (games 
- explain how the gender of a baby is determined
- describes the diffences between the chromosomes of a sperm cell and an egg cel 

Slide 3 - Slide

how did you inherit characteristics from your parents?

Slide 4 - Open question

why do some inherited characteristics not show?

Slide 5 - Open question

what are chromosomes and what do they contain?

Slide 6 - Open question

why do siblings look similar to their parents and each other?

Slide 7 - Open question

cells and chromosomes
humans have: 
somatic cells : 'body cells', 46 chromosomes, 23 pairs of chromosomes, diploid cells 

gametes : 'sex cells' (egg cells, sperm cells), 23 single chromosomes, haploid cells 

Slide 8 - Slide

cells and chromosomes
humans have in EACH somatic cell: 
  • 22 pairs of autosomes
  • 1 pair of sex chromosomes : X X = female, XY=male 

so, humans have in EACH gamete:
  • 22 autosomes
  • 1 sex chromosome


Slide 9 - Slide

questions...
  • How many sex chromosomes are there to be found in a gamete? 
  • What are the chances of having a baby girl of baby boy?
  • Who is ‘responsible’ for the gender of a baby: the mother, the father or both?

Slide 10 - Slide

huiswerk
learn par. 5.2
do exercises 1-3

Slide 11 - Slide

questions...
  • How many sex chromosomes are there to be found in a gamete? 
  • What are the chances of having a baby girl of baby boy?
  • Who is ‘responsible’ for the gender of a baby: the mother, the father or both?

Slide 12 - Slide