1) The primary function of DNA in cells is to  a) Serve as a storage form for unused nucleotides b) Occupy space in the nucleus to keep it from collapsing  c) Store information that tells the cells which proteins to make  d) Serve as a template for making long, spiral carbohydrates 2) The two strands of DNA are held together by which type of bond? a) Ionic b) Covalent c) Peptide d) Hydrogen 3) According to base pairing rules, Guanine pairs with  a) Cytosine b) Adenine c) Thymine d) Uracil 4) During DNA replication, the enzyme DNA polymerase a) Separates the two strands of nucleotides, creating a fork  b) Constructs new nucleotide chains that are complementary to the original DNA   c) Breaks down the original DNA molecule into separate pieces  d) Joins 2 new DNA molecules together  5) Which of the following is not part of a DNA nucleotide  a) Phosphate b) Deoxyribose c) Uracil d) Adenine 6) Transcription is a process by which  a) DNA is replicated b) RNA is produced from DNA c) RNA produces proteins  d) DNA is broken into RNA  7) A section of DNA has a sequence of ATGGCTACG. What is the complementary DNA sequence ? a) ATGGCTACG b) UACCGAUGC c) TACCGATGC d) TACCGAUCG 8) Which is not a characteristic of RNA? a) RNA has uracil  b) RNA is shorter than DNA  c) RNA is 2 stranded  d) RNA has ribose sugar  9) mRNA contains the code for making a sequence of  a) Amino Acids b) Sugars c) DNA d) More RNA 10) A triplet of bases within the sequence of mRNA is called a a) Anticodon b) Trio c) Codon d) Protein 11) Translation occurs on or within which part of the cell  a) Nucleus b) Cytoplasm c) Golgi body d) Ribosome 12) The structure of the sides of a DNA molecule is made up of alternating molecules of  a) Adenine and Guanine b) Cytosine and Thymine  c) Purines and Pyrimidines  d) Deoxyribose sugar and phosphate 13) tRNA delivers ______________ to the mRNA during translation  a) Proteins b) Phosphate c) Amino Acids d) Deoxyribose Sugar 14) The Central Dogma of biology proceeds in which order? a) DNA to DNA; DNA to Protein  b) DNA to Protein; RNA to DNA c) DNA to RNA; RNA to Protein  d) DNA to RNA; RNA to DNA  15) Where is RNA produced in the cell ? a) Nucleus b) Cytoplasm c) Ribosome d) Endoplasmic Reticulum 16) The DNA sequence is ATAGCA, what is the complementary strand of RNA ? a) TATCGT b) TATGCU c) UAUCGT d) UAUCGU 17) A mutation is a(n) a) Identical strand of DNA made from a template strand  b) Error in nucleotide sequence in a strand of DNA c) Unneeded piece of RNA  d) Change in DNA that is always bad  18) In RNA, Thymine is replaced by  a) Uracil b) Guanine c) Adenine d) Cytosine 19) There are ___________ 3-base combinations of mRNA triplets that code for amino acids  a) 3 b) 64 c) 100 d) 240 20) Okazaki fragments join _________________ a) With the assistance of ligase b) In the lagging strand c) After DNA polymerase has added complementary base pairs  d) All of the above  21) Which enzyme is required for DNA replication to occur? a) Ligase b) DNA polymerase c) Helicase d) All of the above 22) Which type of mutation that generally disrupts the final protein product the most? a) Substitution b) Inversion c) Frameshift d) Translocation 23) Which type of mutation is not a chromosomal mutation ? a) Inversion b) Duplication c) Frameshift d) Translocation 24) The position of the carbon in the deoxyribose sugar determines which of the following  a) The direction of DNA strands b) The complementary base pairs  c) The sequence of mRNA  d) Where DNA replication should begin  25) The direction of DNA is said to be 5' to 3' or 3' to 5', running in opposite directions. This is because DNA is said to be  a) Opposite b) Inverted c) Antiparallel d) Parallel 26) Who was responsible for the discovery of DNA? a) Jefferson, Watson and Crick  b) Watson and Crick  c) Newton, Rosalind and Franco  d) Franklin, Watson and Crick  27) Identify the type of RNA a) mRNA b) tRNA c) rRNA 28) Identify the type of RNA  a) mRNA b) tRNA c) rRNA 29) Identify the type of RNA  a) mRNA b) tRNA c) rRNA 30) mRNA copies a strand of DNA, Introns are removed by enzymes and the mRNA leaves the nucleus. This process is known as  a) DNA replication b) RNA polymerase c) RNA Transcription d) RNA Translation 31) tRNA enters a ribosome and joins along the strand of mRNA by matching anticodons to codons. This creates a strand of amino acids. This process is known as  a) DNA replication  b) RNA polymerase c) RNA transcription d) RNA translation 32) Which of the following is a point mutation  a) Inversion b) Translocation c) Missense d) Duplication 33) Using a codon chart, Translate the mRNA strand: AUGCUGGAACCGCUGCUG a) MET- LEU- GLU- PRO- LEU- LEU b) MET- PRO- ARG-ASP-TYR-CYS c) MET-ARG-GLY- VAL- ILE- STOP d) MET- CYS- PHE- ILE-THR-STOP  34) Using a codon chart, Translate the mRNA strand: AUGAGAGGUGUUAUCUGA a) MET- LEU- GLU- PRO- LEU- LEU b) MET- PRO- ARG-ASP-TYR-CYS c) MET-ARG-GLY- VAL- ILE- STOP d) MET- CYS- PHE- ILE-THR-STOP 35) Using a codon chart, Translate the mRNA strand: AUGUGUUUUAUAACGUAA a) MET- LEU- GLU- PRO- LEU- LEU b) MET- PRO- ARG-ASP-TYR-CYS c) MET-ARG-GLY- VAL- ILE- STOP d) MET- CYS- PHE- ILE-THR-STOP 36) Codons that are expressed in a sequence are called  a) Primers b) Introns c) Exons d) Polymerase 37) Compacted DNA that is connected in the center by a centromere is called  a) Chromosome b) mRNA c) Nucleolus d) Centromere 38) Mutations can be  a) Harmful b) Helpful c) Neutral d) All of the above 39) The monomer of DNA is  a) Nucleolus b) Nucleotide c) Nitrogenous base 40) A chain of amino acids is known as a a) Polymerase Chain b) Polyploidy Chain c) Polypeptide Chain

unit 6: DNA and RNA

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