Molecular Biology

MOLECULAR BIOLOGY EXAM: LATEST A+ QUESTIONS AND ANSWERS BREAKDOWN transcription the step in which the DNA of a gene is copied into mRNA translation a sequence of amino acids is assembled following the directions encoded in the sequence of the messenger RNA nucleotides the molecular building blocks of DNA and RNA; A, T, C, G, (and U in RNA) amino acids the molecular building blocks of proteins ribosome where translation happens; information in mRNA used to construct a specific amino aci...

MOLECULAR BIOLOGY EXAM: LATEST A+ QUESTIONS AND ANSWERS BREAKDOWN Why do we have minor and major grooves in the DNA? it result from the overall geometry of the Watson-Crick base-pair, because of the glycosidic bond in each base-pair Genomes differ in.. % GC Length Number of chromosomes Linear or circular Single or double strand DNA or RNA Complexity (amount of repetitive sequences) number of bases/nucleotides Chromatin DNA+Protein Histones' characteristics Positively charged H...

MOLECULAR BIOLOGY EXAM: LATEST A+ QUESTIONS AND ANSWERS BREAKDOWN ATP vs. dATP ATP has an extra OH which is why d stands for deoxyadenosine Nucleotides in the DNA chain are covalently linked by these phosphodiester bonds (between the 3'hydroxy group of one deoxyribose and the 5' phosphate group of the next deoxyribose) Draw a phosphodiester bond Draw the cytosine Draw thymine (DNA only) Draw uracil (RNA only) Draw adenine Draw guanine Is DNA right-handed or left-handed double he...

TEST BANK FOR KARP’S CELL AND MOLECULAR BIOLOGY, 9TH EDITION, GERALD KARP, JANET IWASA, WALLACE MARSHALL

1.1. Function of the cell ► Cell serves as the structural building block to form tissues and organ ► Each cell is functionally independent- it can live on its own under the right conditions: • it can define its boundaries and protect itself from external changes causing internal changes Molecular Biology and Applied Genetics 6 • it can use sugars to derive energy for different processes which keep it alive • it contains all the information required for replicatin...