Genes, inheritance and selection

Question 1

what is genome?

Answer 1

all the genetic material of an organism

Question 2

what is genetic material?

Answer 2

DNA in the form of chromosomes

Question 3

what is variation?

Answer 3

differences in a species

Question 4

what are the two categories of variation?

Answer 4

-genetic and environmental

Question 5

what are some examples of genetic variation?

Answer 5

-thumb shape
-eye colour
-blood group

Question 6

what are some examples of environmental variation?

Answer 6

-tattoos
-language/accent
-scars

Question 7

what are some examples of both genetic and environmental variation?

Answer 7

-skin colour
-height
-weight

Question 8

what are the different types of variation?

Answer 8

-discontinuous
-continuous

Question 9

describe discontinuous variation

Answer 9

-there are discrete categories
-it is controlled by one gene only

Question 10

how is discontinuous variation represented?

Answer 10

bar graph with spaces between bars

Question 11

describe continuous variation

Answer 11

-can show any value within a range
-can be caused by both genetic and environmental factors
-there are often lots of genes involved

Question 12

how is continuous variation represented?

Answer 12

histogram with bars touching