YR3-K16-LSN3M

HAVE READY

  • YOUR NOTEBOOK
  • PEN
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Slide 1: Slide
BiologieMiddelbare schoolhavo, vwoLeerjaar 3

This lesson contains 20 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 45 min

Items in this lesson

HAVE READY

  • YOUR NOTEBOOK
  • PEN

Slide 1 - Slide

CHAPTER 16
INHERITANCE

Slide 2 - Slide

  • I know what heterozygous and homozygous genes are and I can explain the difference.
  • I know what genotype and phenotype is and I can explain the difference.
  • I understand and can explain the difference between dominant & recessive genes.
  • I can use a punnet square to show the inheritance of certain genes.


  • HETEROZYGOUS
  • HOMOZYGOUS
  • DOMINANT
  • RECESSIVE
  • ALLELES
  • GENOTYPE
  • PHENOTYPE
  • PUNNET SQUARES

Slide 3 - Slide

CHAPTER 16: POP QUIZ
INHERITANCE

Slide 4 - Slide

Steps with Punnet Squares
  1. Identify your alleles.
  2. Identify genotype parent 1. Show possible gametes.
  3. Identify genotype parent 2. Show possible gametes.
  4. Fill in your punnet squares.
  5. Write down ratios of the possible genotypes.
  6. Write down ratios of the possible phenotypes.

Slide 5 - Slide

Practice assignments in class: #1
With Labradors the chocolate coat colour is dominant and the blond coat colour is recessive. Predict the change of getting a blond puppy  when two chocolate labradors that both are heterozygous. Work using the letter B.

Slide 6 - Slide

Practice assignments in class: #1
  1. B = chocolate, b = blond
  2. Genotype parent 1 = Bb, gametes = "B" & "b"  
  3. Genotype parent 1 = Bb, gametes = "B" & "b"

Slide 7 - Slide

Practice assignments in class: #1
4. 


5.  25% BB, 50% Bb & 25% bb 
6. 75% chocolate & 25% blond
B
b
B
BB
Bb
b
Bb
bb

Slide 8 - Slide

Practice assignments in class: #2
When making mRNA, the nucleotide Thymine gets replaced with the nucleotide Uracil (U). 
A. During which process does your body make mRNA
B. Look at the picture below of a piece of DNA, write down in your notebook what you predict the piece of mRNA will look like.

Slide 9 - Slide

How many chromosomes should be in a human sperm cell? please only fill in a number.

Slide 10 - Open question

What does the word diploid mean? How many sets of chromosomes are present in your cells? please only fill in a number.

Slide 11 - Open question

This is a strand of mRNA, what protein is this meant for?
A
skin cells
B
hair cells
C
muscle cells
D
this is not mRNA

Slide 12 - Quiz

This is a photograph of a set of human chromosomes, also known as a karyotype. What can you say about this person.
A
This person is male.
B
This person is female.
C
This person has Down's Syndrom (3x)
D
This is not a human karyotype.

Slide 13 - Quiz

PRACTICE ASSIGNMENTS
INHERITANCE

Slide 14 - Slide

Whether your earlobe is attached to your jawline or not is a characteristic that is determined by a single gene. A detached earlobe is the dominant gene in this case.

A father has a heterozygous genotype for this gene of Aa. What gametes does the father produce in which ratio?
A
100% of his sperm cells are Aa
B
50% of his sperm cells are A 50% of his sperm cells are a
C
75% of his sperm cells are A 25% of his sperm cells are a
D
100% of his sperm cells are a

Slide 15 - Quiz

The same father with heterozygous earlobe genes decides to have a family, his wife also has heterozygous genes for detached earlobes.

What gametes do both parents produce?
A
Dad: 50% A & 50% A Mum: 50% a & 50% a
B
Dad: 100% Aa Mum: 100% Aa
C
Dad: 50% A & 50% a Mum: 50% A & 50% a
D
Dad: 75% A & 25% a Mum: 75% A & 25% a

Slide 16 - Quiz

Jill is a longhaired cat who had kittens with Jack. Their kittens are both longhaired and shorthaired. The gene for having long hair is a recessive gene.
Tom makes 3 statements about this case:
1) Jill has heterozygous genes for long hair.
2) Jill has homozygous genes for long hair.
3) Jil could have both heterozygous or homozygous genes for long hair.
Which statement is correct?
A
none of the above
B
statement 1
C
statement 2
D
statement 3

Slide 17 - Quiz

Cats have 38 chromosomes in their cells. How many chromosomes should they have in their gametes? please only fill in a number.

Slide 18 - Open question

Practice assignments in class: #2
Kerboodle page 262 exercises 1, 4, 8 and 9


timer
10:00

Slide 19 - Slide

HOMEWORK FOR LESSON 4:
  • COMPLETE THE HW FOR LESSON 4
  • COMPLETE ANY IN CLASS ASSIGNMENTS LEFT FROM THIS LESSON IN YOUR NOTEBOOK
  • DOUBLE CHECK YOU UNDERSTAND EVERYTHING
  • YOUR NOTES WILL BE CHECKED AT THE DOOR

Slide 20 - Slide