Unit 1- human lifespan development - Genetic factors

  • Created by: neb_x
  • Created on: 13-05-18 16:19
Genes
sets of instructions to the cells that determinegrowth and development.
1 of 13
Chromosones
Contain genes. - 23 pairs; one from each parent.
2 of 13
Dominant genes
Need only one defective dominant gene (from one parent) for child to get disease.
3 of 13
Dominant gene diseases
Brittle bones disease; causes bones to break wasily. - Hutingtons disease; Causes involuntary movement, cognitive and psychiactric disorders.
4 of 13
Recessive genes
Must be passed on from both parents for child to develop the condition.
5 of 13
Recessive gene diseases
Cystic fibrosis (build up of thck mucous and can damage lungs) - Phenylketonuria PKU (causes intelectual disability and developmental delay) - Duchenne muscular dystrophy (causes muscle weekness and wasting --> difficulty with motor skills and walkin
6 of 13
Recessive c=gene disease carriers
If recessive disease gene is passed from only one parent child becomes a carrier.
7 of 13
Chromosone diseases
Downs syndrome, klinefelter syndrome, colour blindness.
8 of 13
Downs syndrome
Caused by extra copy of chromosone 21. Causes facial characteristics, growth delay and intellectual disability.
9 of 13
Klinefelter syndrome
Bpys have extra X chromosone, causing problems during or delay puberty.
10 of 13
Colour blindness
Caused by mutations in X chromosone so is more common in males. Makes it difficult to distinguish colours.
11 of 13
Genetic susceptibility to disease
An increased liklihood of developing a disease due to an individuals genetic makeup. Can lead to cancer, high cholesterol, diabetes.
12 of 13
Other factors affecting liklihood of disease
Environmental factors, Lifestyle, Life events, Availability og preventative treatements.
13 of 13

Other cards in this set

Card 2

Front

Contain genes. - 23 pairs; one from each parent.

Back

Chromosones

Card 3

Front

Need only one defective dominant gene (from one parent) for child to get disease.

Back

Preview of the back of card 3

Card 4

Front

Brittle bones disease; causes bones to break wasily. - Hutingtons disease; Causes involuntary movement, cognitive and psychiactric disorders.

Back

Preview of the back of card 4

Card 5

Front

Must be passed on from both parents for child to develop the condition.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Health & Social Care resources:

See all Health & Social Care resources »See all Genetic factors resources »