3.4.7 Investigating diversity

Question 1

How can genetic diversity within or between species be compared?

Answer 1

By comparing the frequency of measurable or observable characteristics the base sequence of DNA the base sequence of mRNA and the amino acid sequence of proteins encoded by DNA or mRNA

Question 2

What does gene technology allow scientists to do when investigating genetic diversity?

Answer 2

Gene technology allows direct investigation of DNA sequences instead of inferring genetic differences from measurable or observable characteristics

Question 3

What method has gene technology replaced in investigating genetic diversity?

Answer 3

It has replaced inferring genetic differences from measurable or observable characteristics with direct analysis of DNA sequences

Question 4

What is the first step in quantitative investigations of variation within a species?

Answer 4

Collect data from random samples to avoid bias

Question 5

What is done after collecting data in quantitative investigations of variation within a species?

Answer 5

Calculate a mean value and the standard deviation of the mean

Question 6

How are mean values and standard deviations used in quantitative investigations?

Answer 6

They are interpreted to understand the variation within a species