a. uracil b. guanine c. adenine d. deoxyribose e. phosphate Which base is used in RNA but not in DNA? Which base is used in RNA but not DNA? How many different kinds of bases can be found in the DNA? What does DNA stand for and what are the four bases of DNA?
What DNA structure was found in 1953? What is the structure of the functional group phosphate? What is deoxyribonucleic acid? What makes DNA an acid? What is ligated in DNA structure? What does the h stand for in a DNA structure? What are the acidic protons of DNA? What are the compo...
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DNA is made up of molecules called nucleotides. Each nucleotide contains three components: a phosphate group, which is one phosphorus atom bonded to four oxygen atoms; a sugar molecule; and anitrogenbase. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytos...
The 9-1-1 DNA checkpoint clamp is loaded onto 5′-recessed DNA to activate the DNA damage checkpoint that arrests the cell cycle. The 9-1-1 clamp is a heterotrimeric ring that is loaded in Saccharomyces cerevisiae by Rad24-RFC (hRAD17-RFC), an alternate clamp loader in which Rad24 rep...
in the journalNature. In that paper, they proposed the iconic double-helix model of DNA as we now know it, with sugar-phosphate sides and rungs made up of A-T and G-C base pairs. They also suggested that, based on their proposed structure, DNA could be copied — and, therefore, ...
The phosphate of one nucleotide is covalently bound (a bond in which one or more pairs of electrons are shared by two atoms) to the sugar of the next nucleotide. The hydrogen bonds between phosphates cause the DNA strand to twist. The nitrogenous bases point inward on the ladder and form ...
Mouse Ltk- cells were transformed with the herpes simplex virus thymidine kinase gene and pBR322 DNA by the calcium phosphate precipitation method. Some of the integrated exogenous DNA sequences were recovered from the stable tk+ transformants in the form of plasmids that were capable of ...
What is the sugar used in an ATP molecule?Nucleotides a) consist of the phosphate group, 5-carbon sugar, and an organic nitrogenous base b) are the building blocks of DNA and RNA c) are synthesized throughout the life of an organism d) All the above (a, b, c) are correct....
A nucleotide is the basic of polynucleotide chain of DNA and each nucleotide is composed of three components - i) a nitrogenous base, ii) a pentose sugar and iii) a phosphate group. Nitrogen base is attached to the pentose sugar by an N-glycosidic linkage forming a nucleoside. A ...