Blood Spatter

Front

What are red blood cells used for in DNA typing?

Back

Red blood cells are not used in DNA typing; DNA is extracted from white blood cells.

Front

Can blood typing be performed on dried blood?

Back

False, blood typing can be performed on dried blood.

Front

What is a presumptive test for blood?

Back

A presumptive test is a preliminary test that indicates the presence of blood, but does not confirm it.

Front

Which of the following is NOT a presumptive test for blood: Hematest, Marquis, luminol, leucomalachite?

Back

Marquis is NOT a presumptive test for blood.

Front

What happens to a blood droplet in space?

Back

A blood droplet will remain spherical in space until it comes in contact with a surface.

Front

What is the purpose of luminol in blood detection?

Back

Luminol is used to detect trace amounts of blood at crime scenes by producing a blue glow.

Front

What is the significance of leucomalachite in blood testing?

Back

Leucomalachite is a presumptive test that turns green in the presence of blood.

Front

What is the difference between presumptive and confirmatory tests for blood?

Back

Presumptive tests indicate the possible presence of blood, while confirmatory tests definitively identify blood.

Front

What is the role of white blood cells in DNA typing?

Back

White blood cells contain DNA, which is used for DNA typing.

Front

How does blood behave when it falls from a height?

Back

Blood droplets can break apart and create different patterns upon impact with a surface.