TRNA Study guides, Class notes & Summaries

AQA AS BIOLOGY 7401/1 Paper 1 Mark scheme June 2021. 100% CORRECT questions, answers, workings and explanations. Whatsapp +25479 093 7672 for assistance.Question Marking Guidance Mark Comments 01.1 1. Hydrogen (bonds); 2. Phosphodiester (bonds); 2 2. Accept ester/covalent bond Question Marking Guidance Mark Comments 01.2 Correct answer for 2 marks = 1489/1489.2;; Incorrect answer but for 1 mark accept: 876 OR 1861 - 1862 2 Question Marking Guidance Mark Comments 01.3 1. tRNA i...

lec 25 bio 99_ Genetic code, tRNA, Ribosomes

BIOCHEM406 Practice Exam 3|103 Questions with Verified Answers Pick the best answer. A) The ratio of purine to pyrimidine 2 ́-deoxyribonucleotides in cells is always very close to 1. B) The ratio of (A+T) to (G+C) in cellular RNA polymers is always very close to 1. C) The ratio of (A+T) to (G+C) in cellular DNApolymersis always very close to 1. D) Answers B and C. E) Answers A and B and C. - CORRECT ANSWER A) The ratio of purine to pyrimidine 2 ́-deoxyribonucleotides in cells is alwa...

PUBH 6011 Final Test with A Grade Complete Solutions 6.1 Understand the major functions of cells and the difference between viruses, bacteria - Answer-Cells -provide structure -take in nutrients -convert nutrients to energy -carry out specialized functions -contain genetic material -grow and divide Viruses -non-living -intracellular parasite -1/1000 size of bacteria (nanometers) -prevented by vaccines -types: naked (polio) and enveloped (easily disrupted with alcohol and saniti...

The anticodon on the tRNA for alanine is CGU and the anticodon for threonine is UGU. What is the base change that resulted in the SLC245A mutation? correct answers - cytosine to thymine The codons for arginine include CGA, CGC, CGG and CGU. what is the base change in the anticodon that results in the amino acid switch from the ancestral African form to the East Asian pattern of pigmentation from this mutation in the OCA2 gene? correct answers - uracil to cytosine from the passage, which of...

BIOL 101 Quiz Cells to Organisms Liberty Lynchburg/BIOL 101 Quiz Cells to Organisms Liberty Lynchburg Question 1 3.2 / 3.2 pts Which of the following is not a recognized organ system within the human body? the integumentary system the ovarian follicle system the circulatory system the muscular system the skeletal system Question 2 3.2 / 3.2 pts Which of the following sequences best represents the overall flow of information in a cell? replication, division, protein processing, prot...

one gene-one enzyme hypothesis - each gene contains the information needed to make an enzyme What did George Beadle and Edward Tatum research? - Relationship between genes and proteins using the Neurospora Crassa One gene-one enzyme hypothosis (Neuroposa Example) - Neurospora can grow well on minimal medium (simple sugar, vitamins, inorganic salts), and therefore it must have enzymes produced by a certain gene that that transform these materials into amino acids and vitamins needed for gro...

Bioengernetics - Answer-How energy flows through organisms. ATP - Answer-Used for mechanical, transport, and chemical work. ATP is also an RNA nucleotide. Mechanical Work - Answer-Energy used in motor proteins and muscle cells during contractions. Transport Work - Answer-Energy used to move substances against their gradient. Chemical Work - Answer-Energy used to convey polymers into monomers. Gibs Free Energy - Answer-Portion of a systems energy that can preform work when temperature and p...

Diagnosing Mixed Connective Tissue Disease Correct Answer-Anti-U1-RNP + at least 3 of the following: - Swollen hands or fingers - Myositis or myalgia - Synovitis - Raynaud's phenomenon Drug-induced lupus antibody Correct Answer-DNA-histone complex (95%) SLE antibody Correct Answer-ds DNA(97%), Smith Systemic sclerosis antibody Correct Answer-RNA polymerase II and II Scl-70/anti-topoisomerase I Sjogren's syndrome Correct Answer-anti-SS-Ro/SS-La (SSa and SSb) Limited sclerod...

what is RNA? - Answer ribonucleic acid MRNA and TRNA single stranded shorter AU CG what are biological molecules? - Answer molecules made and used by living organisms eg. lipids, carbs, DNA, AT, water, inorganic ions what are the functions of carbohydrates? - Answer -energy source (respiration) -energy store (starch and glycogen) -structure (cellulose) ATP structure? - Answer 1 adenosine 3 phosphates ADP and energy= ATP condensation reaction using ATP synthase carr...