PBS Unit 1 Review

What happens to the diameter of a blood drop as the height the drop falls from increases?

• increases

• decreases

• stays the same

• it varies

The group in an experiment that does NOT receive treatment is the:

• experimental group

• control group

• constant

• independent variable

Gel electrophoresis separates DNA fragments based on their:

• size

• bases

• sugar

• nitrogen

T/F: The difference in DNA between humans is because of the sequence of bases.

• True

• False

Which body system breaks down food to use the nutrients?

• digestive

• respiratory

• immune

• cardiovascular

What is the complementary strand for this segment of DNA: AAGCTAG

• TTCGATC

• AAGCTAG

• TTCCGTC

• AACGATC

Based on this gel electrophoresis, which suspect was at the crime scene?

• 1

• 2

• 3

• 4

Time of death can be determined by measuring:

• blood pressure

• core body temperature

• fingernail color

• eye pupil diameter

Your doctor shared your test results with your friend. Is this a violation of HIPAA?

• Yes

• No

Using the graph, blood that was dropped from 60cm would have a diameter of:

• 13mm

• 13cm

• 12mm

• 14mm