DNA and genetics - Chapter 1
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Lesduur is: 15 minOnderdelen in deze les
Slide 1 - Tekstslide
Slide 2 - Tekstslide
Slide 3 - Tekstslide
Your genotype influences your phenotype. But also your environment influences your phenotype. Explain this.
Slide 4 - Open vraag
Sometimes, your phenotype is different than what the genotypes shows. Give three examples of phenotypic traits that you cannot find in your genotype.
Slide 5 - Open vraag
Walter’s parents are divorced. His mother has a new boyfriend. Did Walter inherit any traits from his mother’s new boyfriend? Why (not)?
Slide 6 - Open vraag
Slide 7 - Tekstslide
Look at the picture. How many chromosomes can you find in the following cells? Copy the number of the questions and type behind the amount of chromosomes. 1. Cheek cell of a human; 2. Skin cell of a sheep; 3. Egg cell of a pig; 4. Egg cell of a donkey; 5. Sperm cell of a dog; 6. Sperm cell of a buffalo
Slide 8 - Open vraag
Horses and donkeys can have children together. How many chromosomes will you find in the skin cell of a hinnie (donkey/horse hybrid)?
Slide 9 - Open vraag
Ties is doing research. He is looking at a cell with 39 chromosomes. Explain what type of cells this is (sex cell or body cell) and which organism from the table the cell is.
Slide 10 - Open vraag
Is the person in the karyogram a boy or a girl? Explain how you can see this.
Slide 11 - Open vraag
How many chromosomes does this person in the karyogram have?
Slide 12 - Open vraag
Slide 13 - Tekstslide
What is the difference between an allele and a gene?
Slide 14 - 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.
Max says: “I disagree, eye colour is not an example of an allele but of a gene.”
Explain who is right.
Slide 15 - Open vraag
Boys and girls have different genes. On which chromosome do you expect to find the genes that make boys, boys?
Slide 16 - Open vraag
Farah is lactose intolerant. Lactose intolerance is a genetic condition. You cannot digest milk and other dairy products. Explain if the gene causing lactose intolerance is present only in the cells of the digestive system or in all the body cells.
