Blood Spatter & DNA Profiling test review

Front

What is a segment of DNA that codes for a trait and is found on chromosomes called?

Back

Gene

Front

What is the relationship between DNA, genes, and chromosomes?

Back

Chromosomes are made of DNA. Segments on chromosomes are called genes.

Front

Can DNA evidence found in trace amounts be used to solve crimes?

Back

Yes, DNA evidence found in trace amounts can be used to solve crimes.

Front

What is a short tandem repeat (STR)?

Back

A short tandem repeat is a sequence of 2-7 bases that are repeated consecutively.

Front

From what angle is a blood drop most likely to be dropped if it appears circular?

Back

90 degrees.

Front

What are the two main types of DNA profiling techniques?

Back

STR analysis and mitochondrial DNA analysis.

Front

What is the purpose of DNA profiling in forensic science?

Back

To identify individuals based on their unique DNA characteristics.

Front

What is the role of chromosomes in genetics?

Back

Chromosomes carry genetic information in the form of DNA.

Front

How many pairs of chromosomes do humans have?

Back

Humans have 23 pairs of chromosomes.

Front

What is the significance of the 2-7 base length in short tandem repeats?

Back

The length of 2-7 bases allows for variability among individuals, making STRs useful for identification.