Question

СРОЧНО!!! До складу дочірнього ланцюга молекул ДНК, який був синтезований на материнському ланцюзі у процесі реалізації, входить 32% нуклеотидів з аденіном. Визначте кількість нуклеотидів з гуаніном.

Answer 1

The Composition of the Daughter Strand of DNA

In the given scenario, the daughter strand of DNA was synthesized on the maternal template strand during the process of replication. It is stated that this daughter strand contains 32% adenine nucleotides. We need to determine the quantity of guanine nucleotides in this strand.

To solve this problem, we can make use of Chargaff's rules, which state that in DNA, the amount of adenine (A) is equal to the amount of thymine (T), and the amount of guanine (G) is equal to the amount of cytosine (C). Therefore, if we know the percentage of adenine, we can infer the percentage of thymine, and vice versa. Similarly, if we know the percentage of guanine, we can infer the percentage of cytosine.

Calculating the Percentage of Guanine

Since adenine and thymine are always present in equal amounts, and together they make up 100% - 32% = 68% of the nucleotides in the daughter strand, we can divide this percentage in half to find the percentage of adenine and thymine each. Therefore, the percentage of adenine and thymine is 68% / 2 = 34% each.

Now, we can use Chargaff's rules to determine the percentage of guanine. Since guanine and cytosine are also always present in equal amounts, the percentage of guanine is equal to the percentage of cytosine. Therefore, the percentage of guanine is also 34%.

Determining the Quantity of Guanine Nucleotides

To find the quantity of guanine nucleotides in the daughter strand, we need to know the total number of nucleotides present. However, the given information only provides the percentage of adenine nucleotides. Without the total number of nucleotides, we cannot determine the exact quantity of guanine nucleotides.

In summary, based on the given information, we can determine that the percentage of guanine nucleotides in the daughter strand is 34%. However, we cannot determine the exact quantity of guanine nucleotides without knowing the total number of nucleotides in the strand.

I hope this explanation helps! Let me know if you have any further questions.