Post a Comment. Previous Post Next Post. Learn more Ok. Contact form. LinkList ul li ul'. LazyIfy on Scroll by Templateify v1. TickerIfy by Templateify v1. Nucleotides are linked together by sugar and phosphate groups leading to the formation of each DNA strand.
Following this, the coiling up of DNA takes place leading to the formation of chromosomes. All the hereditary information is carried out by genetic material called DNA. The small segments of DNA are called genes, which consist mainly of million base pairs.
DNA leads to the formation of proteins, which are the structural molecules for many organisms. Along with genetic information storing, DNA carries out the following functions:. Replication Process: Under this, the transfer of genetic information from parent cell to daughter cells takes place, leading to equal distribution of DNA during the cell division process. Mutations: Under this process, changes take place in DNA sequences. Cellular metabolism. Gene therapy. DNA fingerprinting.
Well, this is a question for many. It happens because the nucleotides contain phosphate groups. The bonds created between oxygen and phosphorus atoms are negative, which makes the phosphate backbone negative. In the complete DNA structure, the phosphate group contains only one oxygen atom that is negative.
Possible Answers: ADP. Correct answer: All answer choices. Explanation : Nitrogen is essential to create all the nucleic acids, and phosphorous is essential to create phospholipids an obvious choice , ATP and ADP they are the same class of molecule, and the P stands for phosphate , and DNA for the phosphate-sugar backbone. Which of the following is not true of a DNA molecule?
Possible Answers: A purine or pyrimidine is bound to each sugar-phosphate group. Adenine and thymine are held together by phosphodiester bonds. Complementary strands are held together by hydrogen bonds.
Correct answer: Adenine and thymine are held together by phosphodiester bonds. Explanation : DNA is a polymer composed of nucleotide monomers. Possible Answers: ionic. Correct answer: covalent. Explanation : The bond formed between the sugar of one nucleotide and the phosphate of an adjacent nucleotide is a covalent bond. Copyright Notice. View AP Biology Tutors. Jane Certified Tutor. Allyson Certified Tutor.
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