Genetics and Evolution

Question 1

What does variation mean?

Answer 1

Variation is a name given to differences in a species e.g. dogs. Variation is due to each animal having different genetic information in their cells.

Question 2

Tell me about Same Species.

Answer 2

Same Species have the same number of Chromosomes. They can reproduce to create fertile offspring.

Question 3

What does fertile mean?

Answer 3

Fertile means that the animal is able to conceive new life.

Question 4

Tell me about hybrids.

Answer 4

Hybrids produce offspring which are unable to have offspring. e.g. donkey and horse = mule, Lion and Tiger = Liger. Mules and Ligers are infertile so they can’t produce offspring and their genes cannot be passed on.

Question 5

Inherited Variation. What features did we inherit form our parents?

Answer 5

Skin colour, Eye colour, Natural hair colour, Height, Detached Earlobe, Nose Shape, Dimples, Curly Hair, Blood Type, Inherited diseases, Gender.

Question 6

What is DNA?

Answer 6

Deoxyribonucleic acid (DNA) are molecules that are large and complex. They carry the genetic code that determines the characteristics of living things.