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Each organism has a unique combination of characteristics encoded in molecules of DNA The primary function of DNA is to Store and transmit genetic information All of the following are true about the structure of DNA except Short strands of DNA are contained in chromosomes inside the nucleus of a cell Every DNA nucleotide contains a sugar, a phosphate group, and a nitrogen base DNA consists of two strands of nucleotides joined by hydrogen bonds The long strands of nucleotides are twisted into a double helix Molecules of DNA are composed of long chains of nucleotides Which of the following is not part of a molecule of DNA? ribose A nucleotide consists of A sugar, a phosphate group, and nitrogenous base The part of the molecule for which deoxyribonucleic acid is named the sugar Purines and pyridines are Bases found in nucleotides Chargaff’s rules, the basepairing rules, state that in DNA The amount of adenine equals the amount of thymine The amount of guanine equals the amount of cytosine D Both a and b The base-pairing rules states that the following are base pairs in DNA Adenine-thymine; guaninecytosine ATTG:TAAC:: GTCC:CAGG The addition of nucleotides to form a complementary strand of DNA Is catalyzed by DNA polymerase Which of the following is not true about DNA replication? Is the responsibility of the complementary DNA mutagens During DNA replication, a complementary strand of DNA is made for each original DNA strand. Thus if a portion of the original strand is CCTAGCT, then the new strand will be GGATCGA The enzymes responsible for adding nucleotides to the exposed DNA template bases are DNA polymerase The function of tRNA is to Transfer amino acids to ribosomes Which of the following types of RNA carries instructions for making proteins? mRNA RNA differs from DNA in that RNA Is sometimes single-stranded Contains a different sugar molecule Contains the nitrogenous base uracil All of the above Which of the following is not found in DNA? uracil RNA is chemically similar to DNA except that its sugars have an additional oxygen atom, and the base thymine is replaced by a structurally similar base called Uracil In RNA molecules, adenine is complementary to uracil During translation, a ribosome binds to mRNA Each of the following is a type of RNA except A carrier RNA During transcription, RNA is produced Transcription proceeds when RNA polymerase Binds to a promoter on a strand of DNA Transcription is the process by which genetic information encoded in DNA is transferred to an RNA molecule Each nucleotide triplet in mRNA that specifies a particular amino acid is called a codon During translation, the amino acid detaches form the transfer RNA molecule and attaches to the end of a growing protein chain when The transfer RNA anticodon is paired up with the messenger RNA codon The transfer of genetic material from one cell to another, which Fredrick Griffith studied, is called transformation An error in DNA replication can cause Mutations Cancer Genetic variations All of the above