Multiple Choice
Why is it important for scientists to be able to extract DNA from an organism?
3
views
7. DNA and Chromosome Structure
DNA as the Genetic Material
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Why is it necessary to extract DNA from blood left at a crime scene during forensic investigations?
A
To obtain genetic material for identification of individuals involved
B
To analyze the protein content of the blood
C
To determine the blood type of the suspect
D
To measure the amount of hemoglobin present
Verified step by step guidance1
Understand the purpose of DNA extraction in forensic investigations: DNA contains unique genetic information that can identify individuals.
Recognize that blood contains cells with nuclei, which house DNA, making blood a valuable source of genetic material.
Know that analyzing protein content, blood type, or hemoglobin levels does not provide the unique genetic fingerprint needed for individual identification.
Realize that extracting DNA from blood left at a crime scene allows forensic scientists to compare the genetic material to that of suspects or databases.
Conclude that the primary reason for DNA extraction in this context is to obtain genetic material for identifying individuals involved in the crime.
9:32mWatch next
Master History and Experiments with a bite sized video explanation from Kylia
Start learningRelated Videos
Related Practice
DNA as the Genetic Material practice set
Problem sets built by lead tutorsExpert video explanations