Question

Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. two samples isolated from the deepwater horizon leak in the gulf of mexico were labeled a and b. the dna of each was isolated and the percent thymine measured in each sample. sample a contains 21.3 % thymine and sample b contains 28.7 % thymine. assume the organisms contain normal doublestranded dna and predict the composition of the other bases.

Answer 1

Answer:

a is the correct answer

Answer 2

Answer:

Sample A-

T- 21.3 %

A- 21.3 %

G- 28.7 %

C- 28.7 %

Sample B-

T- 28.7 %

A- 28.7 %

G- 21.3 %

C- 21.3 %

Explanation:

According to the Chargaff rule, the amount of purine almost equals pyrimidine and adenine binds thymine and guanine binds cytosine.

Sample A

Since amount of Thymine is 21.3 % therefore the amount of adenine will be also  21.3 %. The amount of cytosine and guanine can be calculated as deduction from 100% therefore G+C= 100-42.6 or 57.4%. This shows that G and C will be 28.7 % each.

Sample B

Since amount of Thymine is 28.7 % therefore the amount of adenine will be also  28.7%. The amount of cytosine and guanine can be calculated as deduction from 100% therefore G+C= 100-58.4 or 42.6. This shows that G and C will be 21.3 % each.

To learn more:

https://brainly.in/question/4797118