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

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 DNA

The figure shows that the average distance between base pairs measured parallel to the axis of a DNA molecule is 3.4 Å. The average molar mass of a pair of nucleotides is 650 g•mol-1. Estimate the length in cm of a DNA molecule of molar mass 5.1x109 4.0 .26 g•mol-1. cm Roughly how many base pairs are contained in this molecule? [4.0 784615 x base pairs CG G C OH TA Thymine Adenine H. H. OH CH2 N-H.......O CH3 H H N……·H–N HLH TA OH 0-P H2C CG G C H. CH2 Guanine H OH Cytosine ... H-N TA AT H' N.....H-N HLH N-H.......O H2C OH H -o. -P3D0 TA 0- OH H. -CH2 (b) The most common structure of DNA, which is a right-handed double helix. The two strands are held together by hydrogen bonds (a) Base-pair formation between adenine (A) and thymine (T) and between cytosine (C) and guanine (G). and other intermolecular forces.

Label the following graph, which indicates the temperature versus the percent of DNA that is single stranded. A 300 bp a. Percent single-stranded DNA Percent single-stranded DNA σ 100 100 50 lonic strength = 1 M NaCl G-C content= 50% Temperature (°C) G-C content = 50% J Temperature (°C) (2 B C 50 bp lower ionic strength D higher ionic strength

Which of the following does NOT describe DNA as it occurs in Eukaryotic cells. CHOOSE ALL THAT APPLY: 1. nitrogenous bases of opposite strands are paired through covalent bonds 2. base pairs are stacked 3.4 A (0.34 nm) apart 3. the two strands of one double helix are complementary 4. two long polynucleotide chains 5. there are 20 base pairs per each turn of a double helix 6. adenine pairs with thymine of the neighboring nucleotide in a single DNA strand 7. bases face outside of the double helix 8. consecutive nucleotides of a single DNA strand are linked by hydrogen bonds 9. here are A-T and G-C pairs in DNA double helix 10. sugar-phosphate backbone of a single DNA strand is formed by linking deoxyribose units and phosphate groups through phosphodiester bonds 11. the two strands of one helix are antiparallel 12.double helix 13. the larger major groove alternates with the smaller minor groove along the length of the double stranded DNA I tried 2,3,4,9,10,11,12,13 together and got it…

5' carbon =  3' carbon = hydrogen bond = phosphodiester bond = phosphate group = deoxyribose sugar = nitrogenous base =

13. a. Draw in the corresponding DNA nucleotide that would base pair with the adenine nucleotide shown below using the same level of detail as provided in the image below. Hint: Remember that DNA bases pair in the antiparallel orientation. орасна you A OH H b. How do you know the adenine nucleotide drawn above is from DNA and not RNA?

Which of the following is something that DNA and RNA have in common? They are both nucleic acids They are both only found in the nucleus They are both made of deoxyribose sugar They are both double stranded Sign out US Lenovo 40 esc $4 1. 2 4. 7 tab W e r y f k a V n shift alt ctrl ctrl alt

Which of the following statements about the DNA double helix is FALSE? O The base pairs are located in the center of the helix O The plane of the base pairs is perpendicular to the direction of the deoxyribose- phosphate backbone O The two strands have the same 5' to 3' direction (i.e, are parallel) O The base pairs stack on one another O The deoxyribose-phosphate backbone is on the outside of the helix

Give correct detailed Solution with explanation needed...don't give Handwritten answer..don't use Ai for answering this. Don't copy answer anywhere