Overall, a molecule of DNA has a negative charge. Which component of DNA gives it this charge? Refer to the following figure. 3. Phosphate group Nitrogenious base DNA nucleolide, H,C 0=P-0- H. Thymine (T) DNA double helix Phosphate droui H C- H. Sugar (deoxyribose) DNA nuclootide Polynucleolide Sugar-phosphate backbone Bb hp f4 IDI f5 16 10 f9 f1o 12 %24 エーO-0- 80
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- One strand of a double-helical DNA has the sequence 5'-GCGCAATATTTCTCAAAATATTGCGC-3'. Write the base sequence of the complementary strand. 5'- What special type of sequence is contained in this DNA segment? Hoogsteen pairing major groove O palindrome mirror repeat What alternative structure does the double-stranded DNA have the potential to form? B-DNA O a G tetraplex triplex DNA a cruciform Z-form DNAWhich of the following molecules is a nitrogen base that would be found in 1 po DNA? (check all that apply) * Adenine Guanine Uracil Baycil Thymine Qualine Cytosine Lenovo esc -> @ # 2 7 8. tab W e r y u i d f g. k a S 31 C V alt alt ctri .... V -Phosphate T Sugar G G A 4 Bases O CCCACTTGAG GAGTTCACCC GGGTGAACTC CTCAAGTGGG O None of the Above Suppose the DNA molecule shown at left was produced in the test tube from deoxynucleotide 5'-triphosphates. What is the correct primary sequence of this piece of DNA?
- Which of the following changes occur with a double-stranded DNA if it is heated to 95 C at neutral pH? OA Increase in the absorption of uitraviolet light at 260 nm OB. Unwinding of the helical DNA structure Oc Separation of the two DNA strands Do.Hydrolysis of the N-glycosidic bond belween the base and deoxyribose DE Breakage of the phosphodiester bonds belwean adjacent ucieotides Dr. Breakage of the hydrogen bonds between guanines and cytidines.A circular double-stranded DNA molecule contains 4200 base pairs. Insolution, the molecule is in a B-form helix, with about 10.5 base pairsper turn. The DNA circle has 12 superhelical turns. What is its superhelixdensity s?Given the active site diagram below, please identify the residue participating in a charge-charge interation. HO OH HN OH 5 ΝΗ *HN ΝΗ OH O Zn²+ 2 4 5 3 1 2 NH 3
- E A 11. Ligase is denoted by letter 12. The Okazaki fragment is denoted by letter 13. The SSB protein is denoted by letter 14. The 5' end of the DNA strand is denoted by letter 15. The 3' end of the DNA strand is denoted by letter in the diagram. in the diagram in the diagram. B5. Create the complimentary strand for the DNA strand below. Make sure to label the parts and direction of the strand. 5'-GGCAACGGTCCAGTCCAAGTTACG-3' 6. What are the amino acids coded for by this sequence of nucleotides: ATG GGA ACT CCA 7. What is the complementary messenger-RNA sequence for the DNA sequence shown below? ATC GGA CCG ATT GCCJILLule should [1] De Tepicated exactly. Figure 2 represents part of a DNA molecule. 5'TT ATGC TT 3' T. C CA G tal: 5] TACG A A G 3' GTC her 5' Figure 2 (c) Show, by means of annotated diagrams, how this piece of DNA is replicated. Distinguish clearly between the original and new strands.
- (üij If one of the strands of DNA has the following sequence of bases running in the 5' →3' direction 5'-G-G-A-C-A-A-T-C-T-G-C-3' 3'e c 4 GT TAGA C GS vhat base is 'closes: to 5' end in the compiementary strand?What is the purpose of using the Chelex beads while extracting the DNA at high temperature from your cheek cells? Group of answer choices The Chelex binds cations like Mg2+ that are co-factors for nuclease enzymes which would otherwise degrade the DNA. The Chelex denatures the DNA and makes the DNA single stranded. The Chelex will bind the DNA tightly after the cells are ruptured, helping extract it from the cells. The Chelex provides Mg2+ co-factors needed by DNA polymerase enzymes to make more copies of DNA1. Complete the structure of this section of a DNA molecule. Label each base (A.I,G,C), sugar (S) and phosphate (P) group on the complimentary strand. 2. Indicate whether each structure is DNA, MRNA, tRNA, an amino acid or a protein. (You may use a choice more than once or not at all) А. B D E GAA 3. Complete the complementary strand: A. DNA replication AIIC GA G G CTA A В. MRNA transcription AIIC GA G G CTA A 4. Where in the cell do each of the processes listed below occur? Be specific. А. Replication С. Translation В. Protein synthesis D. Transcription O UA DC