Forensics Third Quarter Extra Credit - 2024

What is the shape of a DNA molecule called?

• A helix

• A double helix

• Nitrogenous

• Helical

Which is true?

• Humans have 36 chromosomes

• Each gene comes in pairs of two

• Each chromosome contains hundreds of genes

• An allele is an identical form of a gene

Where is DNA located within the cell?

• Within the cell membrane

• Floating freely in the cytoplasm

• Inside of the nucleus

• Inside the ribosome

What is the purpose of PCR?

• To copy small amounts of DNA into larger molecules for analysis

• To break open the nucleus and release DNA

• To match suspect DNA samples to a crime scene

• To compare samples from multiple suspects

Based on these results whose blood was found in the blood stain at the crime scene?

• Bob
• Sue
• John
• Lisa

Which suspect is likely guilty?

• Suspect #1
• Suspect #2
• Suspect #3

Which man is the father of this baby?

• Father 1
• Father 2
• Father 3
• None of them

Which DNA process is found in the male chromosome, and is therefore passed only from father to son?

• Mitochondrial DNA

• Nuclear DNA

• Y-str DNA

• Molecular DNA

Mitochondrial DNA is different from nuclear DNA because

• it is inherited only from the mother
• It is inherited only from the father
• It is double helix in shape
• It is not useful in forensic science

Serology is:

• The study of blood and blood components

• The study of blood spatter physics

• The study of the fluids of the human body

• The study of the human circulatory system