Question

Сколько водородных связей содержит участок молекулы ДНК из 60 нуклеотидов, если одна из ее цепей на данном участке содержит 5 адениновых оснований, а другая цепь – 15 адениновых оснований.

Answer 1

Ответ:

А нужно Александра Сергеевича слушать на парах

Объяснение:

Answer 2

Ответ:

Аденин с тимином соединяются двумя водородными связями, гуанин с цитозином - тремя. В ДНК А=Т, Г=Ц. Таким образом: А=Т=20, водородных связей 40, Ц=Г=60-(20+20)=20, водородных связей 60. Всего связей 100.

Answer 3

Number of Hydrogen Bonds in a DNA Molecule

The number of hydrogen bonds in a DNA molecule depends on the specific base pairing between nucleotides. In DNA, adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G). Each base pair is held together by hydrogen bonds.

To determine the number of hydrogen bonds in a DNA molecule, we need to know the number of adenine (A) bases in one strand and the number of thymine (T) bases in the other strand, as well as the number of cytosine (C) bases in one strand and the number of guanine (G) bases in the other strand.

In the given scenario, one strand of the DNA molecule contains 5 adenine (A) bases, while the other strand contains 15 adenine (A) bases.

Since adenine (A) always pairs with thymine (T) through two hydrogen bonds, we can calculate the number of hydrogen bonds for the adenine-thymine (A-T) pairs in both strands.

For the first strand with 5 adenine (A) bases, there will be 5 adenine-thymine (A-T) pairs, resulting in 10 hydrogen bonds.

For the second strand with 15 adenine (A) bases, there will be 15 adenine-thymine (A-T) pairs, resulting in 30 hydrogen bonds.

Therefore, the total number of hydrogen bonds in the given DNA molecule segment with 60 nucleotides is 40 hydrogen bonds.

Please note that this calculation assumes that there are no other base pairs (such as cytosine-guanine) in the given segment of the DNA molecule.