DNA and Genetics - Chapter 3

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BiologieMiddelbare schoolvwoLeerjaar 3

This lesson contains 21 slides, with interactive quizzes, text slides and 1 video.

time-iconLesson duration is: 45 min

Items in this lesson

Slide 1 - Slide

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

Jan has one allele for a long middle finger and one allele for a short middle finger.

Jan is ... for middle finger lenght.
A
Homozygous
B
Heterozygous

Slide 6 - Quiz

Paul has two alleles for blonde hair.

Paul is ... for hair colour.
A
Homozygous
B
Heterozygous

Slide 7 - Quiz

Guinea pigs can have short or long hair. A long-haired guinea pig and a short-haired guinea pig have a nest of babies. They only have long-haired babies. The babies are ... for hair length.
A
Homozygous
B
Heterozygous

Slide 8 - Quiz

Slide 9 - Slide

Slide 10 - Slide

Slide 11 - Slide

Joe is heterozygous for hair colour. What is his genotype for hair colour?
A
AA
B
Aa
C
aa

Slide 12 - Quiz

Matt is homozygous recessive for finger length. What is his genotype for finger length?
A
BB
B
Bb
C
bb

Slide 13 - Quiz

Karl is homozygous dominant for earlobe form. What is his genotype for earlobe form?
A
EE
B
Ee
C
ee

Slide 14 - Quiz

2

Slide 15 - Video

00:10
What is the difference between a gene and an allele?

Slide 16 - Open question

00:27
Dominant allele
recessive allele
an allele that is always expressed in the phenotype
an allele that is only expressed in the phenotype if there is no dominant allele present

Slide 17 - Drag question

Two black dogs have puppies. All puppies are white. Which of the alleles is dominant? And what is the genotype of the parents?
A
White allele; BB
B
Black allele; BB
C
White allele; Bb
D
Black allele; Bb

Slide 18 - Quiz

Which of the alleles is dominant? Ralph is heterozygous for hair colour. His hair is black.
A
Black hair
B
Brown hair
C
Blond hair

Slide 19 - Quiz

Which of the alleles is dominant? Hanna has blue eyes. Her father and mother had brown eyes.
A
Brown eyes
B
Blue eyes

Slide 20 - Quiz

Which of the alleles is dominant? A white horse is heterozygous for hair colour.
A
Black hair
B
White hair

Slide 21 - Quiz