Genet

Question 1

Dominant autosomal

Answer 1

Manifest if it heterozygote

Single gene

Question 2

Eye colour GENE

Answer 2

OCA 2 controls amount of melanin in melanocyte

Brown eyes have active version of gene

Question 3

Autosmnal dominant can cause what 3 types of change

Answer 3

Gain of function - new protein new function

Dominant negative effect - mostly effects diners or multimer interferes with protein it binds to

Insufficient- mutant of a gene in one copy
The second copy is enough to carry out function

Question 4

Autosomal ressesive

Answer 4

Carriers

Question 5

Y chromosome

Answer 5

Smaller

Less genes

Question 6

X linked ressesive

Answer 6

Mainly mans
Men get it as they only have one x so essentially dominant
An affected father can not give it to sons

Question 7

Y linked

Answer 7

Only affect males

All sons of affected dad effected

Question 8

X linked dominat

Answer 8

All daughter of affected father have it

But no sons

Question 9

Many of mitochondrion protein are coded by what

Answer 9

Nuclear genes

Question 10

Who mitochondria disease pass down

Answer 10

Mum passes it down

Question 11

Mitichdria variablity

Answer 11

Many genomes
Only expresse when passes threshold
Replicate via binary fission
Lose or gain mutated gene

Question 12

Number of mitichdra in person causes variability

Answer 12

Many mitochondria in cell 
Segraget random 
Each  cell have diff number of miyichdonfa 
Threshold needs to be reached 
Number of mutant can change with time