DNA Profiling - Forensic Science

Alec Jeffrey

Invented DNA profiling

Exons

DNA profiling relies upon n section of DNA that are highly variable among individuals. These sections are found in the _____ regions of DNA

2%

What percent of DNA code for proteins

Restriction enzymes

What do scientist use to cut DNA

16

The FBI uses on average _____ different loci to produce a DNA profile

Mitochondria

If nuclear DNA isn’t available where else can a scientist find DNA

False

T or F: red blood cells are a rich source of DNA

STR’s

Small sections of nitrogenous bases that repeat over and over again

Negatively

What charge does DNA have?

Positive

In gel electrophoresis, DNA is attracted to what charged side of the machine?

CODIS

FBI database with over 11 million DNA profiles

98%

How much of our DNA is non-coding?

Identical twins

In what situation would fingerprints be more useful than DNA profiling

Class

Y-STRs and MtDNA are what form of evidence?

Maternal

MtDNA can identify individuals on what lineage? (Maternal or paternal)

Alleles

Differing forms of the same genes are called what?

1

Being homozygous at a certain locus means it has how many peaks?

Proteins

Genes are the recipe to build what?

Locus

All like genes will be found on the same chromosome at the same location. What is this location called?

Autosomes

What are the 22 pairs of chromosomes called?

46

The diploid number of chromosome for a human is what?

Sperm/ova

What are male/female gametes called?

Hydrogen

What type of bonds hold the two strands of DNA together?

Purines

What are single ringed nitrogenous bases called?

Pyrimidines

What are double ringed nitrogenous bases called?

Watson and Crick

Who discovered the structure of DNA?

Rosalind Franklin

Who provided DNA x-ray diffraction photos that aided in the DNA structure discovery?

Genomes

All of the DNA found in human cells is called what?

Nucleotide

What is the monomer that is put together to make the DNA polymer called?

Deoxyribonucleic acid

What does DNA stand for?

Sugar and phosphate

The “backbone” of the DNA molecule is made up of two components, what are these?

Guanine and adenine

The two bases that are purines are what?

Cytosine and thymine

The two bases that are pyrimidines are what?

Thymine

Adenine pairs with…

Guanine

Cytosine pairs with…

Spiral helix

What is the shape of a DNA molecule?