Human DNA
Rosie and Neil talk about a new study which suggests that men may become extinct in as little as 100,000 years. Listen to the programme to find out why this might be happenning.
This week's question: What is the ratio of men to women in the world? Is it
a) Equal – so 100 males to every 100 females.
b) 101 males to every 100 females.
c) 100 males to every 105 females.
Listen out for the answer at the end of the programme.
Listen
The extinction of men
End of Section
Vocabulary
- chromosome
a very small structure in animal or plant cells
- hormones
chemical substances in the body that influence cell function
- pessimistic
expecting bad things to happen
- ratio
numerical expression of the relative sizes between two or more values
- extinction
a situation in which a life form stops existing
- breathe a sigh of relief
feel happy that something unpleasant stops
- depleted
reduced by a large amount
- genes
units in cells that control qualities passed on through generations
- natural selection
a process in nature that determines chances of survival
- stereotypes
a fixed idea or image that people have about something
