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Description: DNA polymerases ___. catalyze carbon bonding seal gaps in the sugar-phosphate backbone add new nucleotides to a strand repair DNA

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Biology

DNA polymerases ___. catalyze carbon bonding seal gaps in the sugar-phosphate backbone add new nucleotides to a strand repair DNA

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter14: Dna Structure And Function

Section: Chapter Questions

Problem 2VCQ: Figure 14.14 You isolate a cell strain in which the joining of Okazaki fragments is impaired and...

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Concept explainers

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.

Topic Video

Question

DNA polymerases ___.

catalyze carbon bonding

seal gaps in the sugar-phosphate backbone

add new nucleotides to a strand

repair DNA

Definition Definition A complex molecule that makes up a fundamental unit of a DNA or RNA molecule. Nucleotides are composed of a sugar, a nitrogenous base, and a phosphoric acid.

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nd 2 minutes): Any RNA polymerase in any organism: O A Synthesizes RNA chains in the 3 to-5" direction O B. Binds tightly to a reqion of DNA located thousands of base pairs away from the transcobed rogion of the DNA OC Has proofreading activity O D. Separates DNA strands throughout a long region of DNA (up to tinousands of base pairs) and then copies one of them. OE Has a subunit called A (lambda), which acts as a proofreading ribonuclease OF. Can initiate synthesis of a new RNA chain without a primer