Inheritance(genetics)

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Inheritance(genetics)

Each human being has 46 chromosomes. How many did you get from your mother?

A

46

B

23

C

22

D

45

genotype

phenotype

XY chromosomes

cannot change!

you inherit this

can sometimes change during your life

you do not inherit this

a scar

Is not always visible

Identical twins do have the same genotype but not necessarily the same phenotype

A

true

B

false

A dog has 78 chromosomes.

How many are there in a liver cell?

How many are there in a liver cell?

A dog has 78 chromosomes.

How many are there in a sperm cell?

How many are there in a sperm cell?

A dog has 78 chromosomes.

2n is?

2n is?

A

46

B

78

C

156

D

39

A dog has 78 chromosomes.

n is?

n is?

A

46

B

78

C

156

D

39

A frog has 26 chromosomes.

n is?

n is?

A

26

B

13

C

52

D

23

A frog has 26 chromosomes.

an egg cell has?

an egg cell has?

A

26

B

13

C

52

D

23

A frog has 26 chromosomes.

an egg cell has?

an egg cell has?

A

26

B

13

C

52

D

23

What is the chance to get a boy?