A forensic scientist is trying to find out the number of adenine in the DNA sample that he obtained from a crime scene.
What can he assume about the number of adenine?
The number of adenine will be equal to the number of guanine.
The number of adenine will be equal to the number of all the other bases.
The number of adenine will be equal to the number of thymine.
The number of adenine will be not equal to the number of any other base.
Answers
DNA molecule possess two chains that lap around each other forming double helix and transmit genetic information used for growth, development, working and replication of all living organisms including multiple viruses. In DNA there are four bases which include adenine, guanine, thymine and cytosine. The bases in DNA are connected by hydrogen bonding. Adenine pair with thymine by two hydrogen bonds and guanine pair with cytosine with three hydrogen bonds. Since adenine and thymine are paired, number of adenine bases will be equal to the number of thymine bases. Hence the forensic scientist can find the number of adenine if he has the number of bases of thymine. So the correct answer is the number of adenine will be equal to the number of thymine.
The correct answer for your question is option (C)-The number of adenine will be equal to the number of thymine.
Your question is related to DNA profiling.
DNA profiling is the method of determining the characteristics of any individual's DNA which are unique as finger prints.
The principle that no two organism produces same set of DNA helps in performing DNA profiling. DNA profile will be created in any situation where the DNA of an individual is used. The profile can be utilized to identify and define the characteristics of an individual.
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