PBS 1.2.3 Review

Front

What is the purpose of a DNA ladder/standard in gel electrophoresis?

Back

To determine the size of unknown DNA fragments.

Front

What is Algor Mortis?

Back

The process of a body losing heat energy after death until it reaches equilibrium with the environment.

Front

What does blue-purple coloring on the back and legs of a corpse indicate?

Back

The victim died laying on their back.

Front

If a body has lost 7.9 °F, is the time of death more than 12 hours, less than 12 hours, or cannot be determined?

Back

Less than 12 hours.

Front

What is another term used in forensics to describe the environmental temperature in which a body is found?

Back

Ambient Temperature.

Front

What is the significance of Rigor Mortis in forensic science?

Back

It refers to the stiffening of muscles after death, which can help estimate the time of death.

Front

What is Livor Mortis?

Back

The pooling of blood in the lowest parts of the body after death, causing discoloration.

Front

How can ambient temperature affect the rate of decomposition?

Back

Higher ambient temperatures can accelerate decomposition, while lower temperatures can slow it down.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

What is the role of gel electrophoresis in DNA analysis?

Back

It separates DNA fragments based on size for analysis.

Front

What factors can influence the rate of cooling in a corpse?

Back

Environmental temperature, body size, clothing, and exposure to wind.