BSC 108 Exam 3 Questions And Answers
BSC 108 Exam 3 Questions And Answers structure of DNA - ANS composed of nucleotide subunits - has sugar - phosphate backbone (deoxyribose and phosphate) DNA - ANS deoxyribonucleic acid nitrogen - containing bases - ANS adenine, guanine, thymine, cytosine adenine, guanine, thymine, cytosine - ANS held together by hydrogen bonds adenine = thymine guanine = cytosine - ANS always pair together (DNA) DNA replication - ANS - 1 parent has 2 strands of separates -each strand used to make new strand - 2 daughter molecules is composed of 1 "old"/ "new" strand origin - ANS 2 parent strands separate at ________ of replication RNA - ANS single stand nucleic acid uracil, ribose - ANS RNA contains ________ instead of thymine and ________ instead of deoxydie mRNA, tRNA, rRna - ANS 3 types of RNA mRNA (messenger) - ANS carries genetic info copied from DNA tRNA (transfers) - ANS deciphering code words
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bsc 108 exam 3
