Inheritance phenoype genotype

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

Inheritance

Why we look like our family members, but still are all different

What is inheritance?

objectives

1.    You can explain how children inherit different characteristics from their parents

2. You can describe where in what way the genetic information is stored in the body

3.    You can describe the difference between genotype and phenotype

Where it all begins

A new individual

How many chromosomes do humans have? And how many chromosome pairs?
... and ...

How many chromosomes do fruit flies have?
(look at the karytype)

Genotype

Phenotype

Risk for a genetic disease

00:43

What is the another name for nature?

01:13

What is not controlled by genes?

1. colour of fruit
2. colour of your eyes
3. a scar on your face
4. your blood group

01:56

In the example of the tree, what are the environmental influences?

1. genes of the tree and sunlight
2. water and sunlight
3. only genes of the tree
4. only water

02:11

02:29

Why would researchers use information from identical twins to investigate the effects of the environment?

How many chromosomes does Chamaecrista fasciculata have?

(see picture)

1. 8
2. 3
3. 16
4. 20

How many chromosome pairs does Chamaecrista fasciculata have?

(see picture)

1. 8
2. 3
3. 16
4. 20

How many chromosomes does a muscle cell of a cat have?

1. 38
2. 46
3. 19
4. 21

How many chromosomes does an egg cell of a donkey have?

1. 46
2. 30
3. 62
4. 31

How many chromosomes does an hair cell of a horse have?

1. 30
2. 64
3. 32
4. 31

And continue!

Read page 240 in the book

Do question 1 and 6