Nucleo Guías de estudio, Notas de estudios & Resúmenes

Nucleotide - Monomer that forms DNA and has a phosphate group, a sugar, and a nitrogencontaining base. DNA - A complex molecule containing the genetic information that makes up the chromosomes. RNA - A single-stranded nucleic acid that passes along genetic messages. Purines - Nitrogenous bases that have a double ring of carbon and nitrogen atoms, such as adenine and guanine. Pyrimidines - Nitrogenous bases that have a single ring of carbon and nitrogen atoms, such as cytosine and thymine ...

Nucleotides and Nucleic acids (OCR) questions and answers latest 2024

Nucleotides and Nucleic acids (OCR) with complete solution

Deoxyribonucleic Acid (DNA) - ANSWER-A double helix with two polynucleotide chains held together by hydrogen bonds between specific complementary base pairs that carries genetic information. The pentose sugar in DNA is deoxyribose. Ribonucleic Acid (RNA) - ANSWER-Short, single stranded polynucleotide that transfers genetic information from DNA to the ribosomes. Ribosomes are formed from RNA and proteins. The pentose sugar in RNA is ribose Nucleotides - ANSWER-The monomers that make up poly...

SNP (single nucleotide polymorphism) Exam Questions & Answers 2024/2025

OCR CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS   Haloalkane to nitrile - ANSWER-nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - ANSWER-Nucleophilic substitution Excess ethanolic NH3 with no further substitution HEAT under PRESSURE acyl chloride/acid anhydride to SECONDARY amide - ANSWER-Nucleophilic substitution primary amine Acyl chloride/acid anhydride to PRIMARY amide - ANSWER-Nu...

OCR CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS   Haloalkane to nitrile - ANSWER-nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - ANSWER-Nucleophilic substitution Excess ethanolic NH3 with no further substitution HEAT under PRESSURE acyl chloride/acid anhydride to SECONDARY amide - ANSWER-Nucleophilic substitution primary amine Acyl chloride/acid anhydride to PRIMARY amide - ANSWER-Nu...

Inflamacion correct answers Es una respuesta a la agresion local en tejidos vascularizados - Proposito: llevar leucocitos y otros elementos al lugar de la agresion (vasos permeables) Lesion local: 3 problemas del tejido correct answers 1- hemorragia 2- Destruccion tisular 3- MO (infeccion) Actores de la inflamacion correct answers Tejido conectivo Celulas localizadas en el t. lesionado Elementos circulantes del vaso Comonentes de la pared el vaso Cambios de la estructura de l...

Nucleotide Bases Practice Exam Questions 2024. Adenine - correct answer Guanine - correct answer

OCR CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS   Haloalkane to nitrile - ANSWER-nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - ANSWER-Nucleophilic substitution Excess ethanolic NH3 with no further substitution HEAT under PRESSURE acyl chloride/acid anhydride to SECONDARY amide - ANSWER-Nucleophilic substitution primary amine Acyl chloride/acid anhydride to PRIMARY amide - ANSWER-Nu...