Nat5 life on earth Word Scramble
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Question | Answer |
What are mutations? | random change to DNA BASES /genetic information. |
How do mutations occur? | Mutations occur randomly and at low frequency. |
What are the three possible consecquence of mutation? | Mutations can be disadvantageous (genetic disease), advantageous or neither. |
What is Down syndrome? | Down syndrome is a condition caused by an individual having 3 copies of chromosome 21. |
Name a medical condition that is caused by genetic mutations | Cancer |
What is an allele? | A version of a gene (e.g. blue eyes or brown eyes) |
What is the only process leads to new alleles being created? | Mutation |
New alleles lead to an increase or decrease in biodiversity | increase in biodiversity |
Advantageous mutations are more or less common than disadvantageous mutations | advantageous mutations are less common |
Advantageous mutations can get established in a population by | natural selection. |
What are adaptations? | Features that organisms have, occurring often after a mutation that increase their chance of survival. |
What are the types of adaptation? | Structural (e.g. snail shell) OR Behavioural (e.g. fox is nocturnal) |
What are mutagenic agents? | Agents that increase the likelihood of a mutation occurring |
Name 4 examples of mutagenic agent? | Radiation, mustard gas, UV light & high temperatures. |
Created by:
dr.prorocic
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