Sex Determination
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La durée de la leçon est: 50 minÉléments de cette leçon
Slide 1 - Question ouverte
Slide 2 - Diapositive
Slide 3 - Diapositive
Slide 4 - Diapositive
How many chromosomes does this person have in a normal body cell?
Slide 5 - Question ouverte
What sex is this person and how do you know?
Slide 6 - Question ouverte
Slide 7 - Diapositive
Slide 8 - Diapositive
Red-green colourblindness is caused by a recessive allele on the X chromosome. Why are men more likely to get it?
Slide 9 - Question ouverte
Red-green colourblindness is caused by a recessive allele on the X chromosome. Why can't men pass it onto their sons?
Slide 10 - Question ouverte
Slide 11 - Diapositive
Slide 12 - Diapositive
Slide 13 - Diapositive
Using the letters H or h for the alleles for polydactyly, which of the genotypes would have the disorder?
A
HH
B
Hh
C
hh
Slide 14 - Quiz
What combination of alleles did parents A and B have?
Slide 15 - Question ouverte
Give two possible combinations of alleles for cat D. Use the letters H or h.
Slide 16 - Question ouverte
CASADIL is an inherited disorder caused by a dominant allele. What is the evidence in the diagram that CASADIL is a dominant allele?
Slide 17 - Question ouverte
Is person 7 homozygous or heterozygous for the CASADIL allele? Explain.
Slide 18 - Question ouverte
Slide 19 - Diapositive
What is polydactyly and is it caused by a dominant or recessive allele?
Slide 20 - Question ouverte
Slide 21 - Diapositive
Using the letters C or c for the alleles for cystic fibrosis, which of the genotypes would have the disorder?
A
CC
B
Cc
C
cc
Slide 22 - Quiz
Cystic fibrosis is caused by a membrane allele. Both parents are carriers of cystic fibrosis. Suggest what this means.
Slide 23 - Question ouverte
What is the probability that the two carrier parents will have a child with cystic fibrosis?
