answersLogoWhite

0


Best Answer

If there is 20% T that means there is also 20% A. 20% + 20% = 40%

100% - 40% = 60%

Since there is the same percentage of G and C 60%/2 =30%

30% C

30% G

20% T

20% A

This is known as Chargaff's rule.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: In a DNA molecule there is 20 percent thymine how much cytosine is in this?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Biology

If you have 13 percent thymine in DNA what is then how much adenine do you have?

Then you also have 13% cytosine, 37% guanine, and 37% adenine.


If a section of DNA has 27 percent thymine how much cytosine will it have?

27+ 27 = 54 (how much T and A are in the sample) 100-54 = 46 (how much G and C are in the sample) 46/2 = 23% of the bases will be cytosine.


Do cytosine and guanine have stronger hydrogen bonds than adenine and thymine?

It's not that the individual hydrogen bonds are stronger but rather there are more of them. Between A and T there are two hydrogen bonds, between G and C there are three hydrogen bonds. The additional hydrogen bond between G and C does mean that the bonding between G and C is much stronger then that between A and T and requiring of significantly more energy to break.


How are proteins affected by your DNA composition?

Affected? Hell, they're MADE from your DNA, pretty much... though of course they'e not made OF DNA - proteins consist of one or more polypeptide chains (which are chains of amino acids linked by peptide bonds). But, in short - your DNA is transcribed into mRNA (by particular enzymes, and enzymes are also proteins by the way...) - so basically a copy is made of your DNA - which is then translated into a polypeptide in little cell organelles called ribosomes - each 3 bases of DNA (or mRNA if you like...) codes for a particular amino acid, which is sort of brought to the ribosome by a tRNA molecule.... You know the bases, right? A, T, C, G, U (Adenine, Thymine, Cytosine, Guanine, Uracil)? Well, Adenine always binds with thymine, and cytosine always binds with guanine... and Uracil is the RNA equivalent of thymine. so here's an example of how it works (assuming the top strand of DNA is transcibed):


What types of molecules make up RNA molecules?

"nucleic acids store and transmit hereditary, or genetic, information. there are 2 kinds of nucleic acids: ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). as their names indicate, RNA contains the sugar ribose and DNA contains the sugar deoxyribose." -Prentice Hall: Biology (p.47) hope this helped

Related questions

If you have 13 percent thymine in DNA what is then how much adenine do you have?

Then you also have 13% cytosine, 37% guanine, and 37% adenine.


If a section of DNA has 27 percent thymine how much cytosine will it have?

27+ 27 = 54 (how much T and A are in the sample) 100-54 = 46 (how much G and C are in the sample) 46/2 = 23% of the bases will be cytosine.


How much of each base is in DNA?

For each person, Adenine, Thymine, Cytosine, and Guanine can be in different amounts. It what makes you you.


What scientist found that DNA contains equal amount of thymine and adenine?

Erwin Chargaff is his name


What does the mass percent of an element tell you about molecule?

it tells you how much of the molecule the element is


What does mass percent of an element tell you about a molecule?

it tells you how much of the molecule the element is


Lists examples of nucleic acids carbohyd rates lipids?

Adenine , cytosine, guanine, thymine, and uracil.(acids) use yahoo answers, its much better and u get more answers


What does percent composition tell you about molecules?

It tells you how much of a molecule is made up of each element. - APEX


Do cytosine and guanine have stronger hydrogen bonds than adenine and thymine?

It's not that the individual hydrogen bonds are stronger but rather there are more of them. Between A and T there are two hydrogen bonds, between G and C there are three hydrogen bonds. The additional hydrogen bond between G and C does mean that the bonding between G and C is much stronger then that between A and T and requiring of significantly more energy to break.


What does percent composition tell you about a molecule?

Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass


How much iron will be present in one molecule of hemoglobin if hemoglobin has 0.25 percent by mass iron and the molecular mass of hemoglobin is 89600u?

If a quarter of the mass of the molecule is iron and the mass of the molecule is 89600u, then the mass of iron is 22400u ... a quarter of the total mass.


What types of bonds form between the complimentary base pairs?

DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. The bases are adenine (A), thymine (T), cytosine (C) and guanine (G) so pretty much complementary bases are connected by a hydrogen bonding.