Question

ИМеется лИ Такой ПРОффесор))5. Найдите число молекул рибозы и остатков фосфорной кислоты в молекуле и-РНК, если количество оснований цитозина было – 1000, урацила – 500, гуанина – 600, аденина – 200:

Answer 1

1000+500+600+200=2300

потому, что иРНК состоит из азотистого осноания (цуга) мол. рибозы и остатков фосфорной к-ты.

Answer 2

Calculation of the Number of Ribose Molecules and Phosphoric Acid Residues in RNA

To calculate the number of ribose molecules and phosphoric acid residues in an RNA molecule, we need to consider the composition of RNA and the given quantities of the different bases (cytosine, uracil, guanine, and adenine).

RNA is composed of ribose sugar molecules, phosphate groups, and four different bases: cytosine (C), uracil (U), guanine (G), and adenine (A). Each ribose sugar molecule is connected to a phosphate group, forming the backbone of the RNA molecule.

The given quantities of the bases are as follows: - Cytosine (C): 1000 - Uracil (U): 500 - Guanine (G): 600 - Adenine (A): 200

To calculate the number of ribose molecules, we need to determine the number of nucleotides in the RNA molecule. Each nucleotide consists of a ribose sugar molecule, a phosphate group, and one of the four bases.

The total number of nucleotides in the RNA molecule can be calculated by summing the quantities of the four bases: - Total nucleotides = C + U + G + A

To calculate the number of ribose molecules, we can assume that each nucleotide contains one ribose sugar molecule: - Number of ribose molecules = Total nucleotides

To calculate the number of phosphoric acid residues, we need to consider that each nucleotide contains one phosphate group: - Number of phosphoric acid residues = Total nucleotides

Let's calculate the values using the given quantities:

- Cytosine (C): 1000 - Uracil (U): 500 - Guanine (G): 600 - Adenine (A): 200

Total nucleotides = C + U + G + A = 1000 + 500 + 600 + 200 = 2300

Number of ribose molecules = Total nucleotides = 2300 Number of phosphoric acid residues = Total nucleotides = 2300

Therefore, in the given RNA molecule, there are 2300 ribose molecules and 2300 phosphoric acid residues.

Please note that the calculation assumes a simplified model of RNA and does not consider any additional structural elements or modifications that may be present in real RNA molecules.