B2 - Genetics (Y7) | Baamboozle - Baamboozle | The Most Fun Classroom Games!

English 19 Public

KS3 B2 Genetics Revision Quiz

Study Slideshow

What does the word 'variation' mean?

The differences between individuals of the same species

Is eye colour an example of genetic or environmental variation?

Genetic

Is having a tattoo an example of genetic or environmental variation?

Environmental

Is body mass an example of genetic or environmental variation?

Both!

Is height an example of continuous or discontinuous variation?

Continuous - it is found over a range of values

Why do we classify living things?

It helps us understand how living things are related to each other.

What is the name given to the overall structure of DNA?

Double helix

What is the name of the strands of DNA that are found in the nuclei of cells?

Chromosomes

Which letter base does 'T' form a pair with in double-stranded DNA?

Which letter base does 'G' form a pair with in double-stranded DNA?

What did Crick and Watson do to help discover the structure of DNA?

They built the 3D model of the double helix

What did Rosalind Franklin do to help discover the structure of DNA?

She demonstrated the double helix structure using X-ray crystallography

What happens during fertilisation?

A sperm cell swims to meet an egg cell, the cells combine and divide to develop into an embryo

Name one adaptation of a polar bear to survive in a cold climate

Large round body size & small ears to reduce surface area/ white coat for camouflage/ large wide feet to prevent slipping/ thick layer of fat for insulation

What is a disadvantage of genetic engineering?

Decreased biodiversity, diseases may adapt, unexpected/unknown damage to the environment

What is natural selection?

Individuals with the advantageous characteristic survive & reproduce, this is passed onto the next generation (called 'survival of the fittest')