This lesson contains 23 slides, with interactive quizzes, text slides and 5 videos.
Lesson duration is: 45 min
Items in this lesson
5. It runs in the family
On inheritance, family trees, genetics and DNA
Slide 1 - Slide
5.5 when genes change
What is a mutation?
How can a disease be inherited from one generation to the
next?
Slide 2 - Slide
lesson plan
Review 5.4 Monohybrid crosses 5.5 video and notes Make 5.5 exercise 3-5 online
Slide 3 - Slide
Draw a Punnett square showing the crossing of the F1 flowers from Mendel's pea plants.
Slide 4 - Open question
purple x white gives purple offspring. Purple must be dominant
P = purple
p = white
Purple F1 crossing gives purple + white flowers
F1 must be Pp
Slide 5 - Slide
F1: Pp x Pp
F2: PP 25% Purple
Pp 50% Purple
pp 25% White
P
p
P
PP
Pp
p
Pp
pp
Slide 6 - Slide
In eggplant, the allele P for purple eggplants are dominant over the allele p for white eggplants. Calculate the probability of heterozygous offspring resulting from a cross between a homozygous dominant parent and a homozygous recessive parent
Slide 7 - Open question
lesson plan
Review 5.4 Monohybrid crosses 5.5 video and notes Make 5.5 exercise 3-5 online
Slide 8 - Slide
Slide 9 - Video
How do you get a mutation in your DNA?
Slide 10 - Open question
mutations
= change in a gene or chromosome (genotype)
This may result in no/small/large change in phenotype
Slide 11 - Slide
mutations
= change in a gene or chromosome (genotype)
This may result in no/small/large change in phenotype
You''l become a genetic counselor. A couple with a child's wish will visit you. You have to advice them on the probabilities of having a baby with a genetic disease