Unit 2 Clicker questions

Question 1

Why do we perceive colors the way we do? Example: Why do leaves appear to be green?

Answer 1

Green wavelengths of light are reflected by the plant

Question 2

UV light can cause mutations that can have a negative impact on an individuals ability to survive and reproduce.
Over time, what would you expect to happen to the alleles that are responsible for increased pigmentation?

Answer 2

They will increase in frequency

Question 3

If one of the conditions of Hardy-Weinberg principle is not met then

Answer 3

The population will evolve

Question 4

Humans have been genetically modifying organisms and applying natural selection for thousands of years

Answer 4

True

Question 5

Who has the most DNA?

Answer 5

Lungfish

Question 6

Sister chromatids are two DNA molecules that have identical sequences of nucleotides.

Answer 6

True

Question 7

Cells in your pancreas insulin but not hemoglobin. Red blood cells make hemoglobin but not insulin. This is because they have different DNA.

Answer 7

False

Question 8

How old is the Earth?

Answer 8

4.5 billion years

Question 9

What is the significance of the Urey-Miller experiment?

Answer 9

Abiotic formation of complex organic molecules