Which nucleotides are capable of base-pairing within the double helix? What characteristics of these nucleotides allow for base-pairing specificity?
Which nucleotides are capable of base-pairing within the double helix? What characteristics of these nucleotides allow...
ladder structure double helix purine base pyrimidine base phosphate deoxyribose base pair double helix structure
1. The figure below shows a DNA double helix and its nucleotide sequence. A. A homodimeric helix–turn–helix protein binds to a DNA fragment containing this sequence. Its preferred half-site is AACAC. Show where the two recognition helices in the protein contact the DNA. B. Are protein–DNA contacts primarily in the major or the minor groove of DNA? What parts of the nucleotides contact the amino acid side chains of the protein to provide most sequence specificity? What kind of bond...
Question 8 1 pts Base pairing is an essential property of a DNA helix. Its presence or absence is very important for all of the following EXCEPT: Establishing the 5' to 3' polarity of a piece of DNA Providing a primer for DNA polymerase. Identifying an origin of replication. Identification of a damaged nucleotide that needs to be repaired. The use of a template to make a new daughter strand Question 9 Primase is an essential component of the replication...
the diagram on the right indicates base pairing between tRNA nucleotides by red lines. these interactions are responsible for the folding of cloverleaf secondary structure to L shaped tertiary structure. draw the chemical structures of G-psi, G-m7G , A-A pairs, indicate Hydrogen bonds within each pair. estimate the length of the acceptor stem. O Constant nucleotide A-OH C75 3. (1 pts) The diagram on the right indicates base pairing between tRNA nucleotides by red lines. These interactions are responsible for...
watson -Crick pairing 5. Now draw tautomers of the nucleotides and show alternative base paring that could result form tautomeric shifts:
Question 1 1 pts Why is it important for DNA to have complementary base pairing? O Complementary base pairing allows base pairs to be packed in the most energetically favorable arrangement inside of the double helix structure. O Complementary base pairing will pair a purine with a purine, which are a similar width, thus they are able to hold the sugar-phosphate backbone an equal distance apart along the DNA molecule o Complementary base pairing is only important for maintaining the...
7. Which of the following shows a naturally observed DNA base pairing found in double helical DNA: -H I O NH N NH N-H Z- I NH N- H H N-H H
The structures of an A-form and a B-form double helix are different in several respects. Use a drawing to describe how is the position of the base pair within the helix related to the size of the minor groove and major groove. Which of the two forms is favored by RNA, and which is favored by DNA? In which are the base pairs perpendicular to the axis of the helix, and in which are they tilted? Which of the two...
unwinds the dna double helix, synthesizes a short complementary piece of RNA primer, adds complementary nucleotides in 5' to 3' direction, forms covalent bonds between Okazaki fragments Primase [Choose ] DNA polymerase [Choose] DNA ligase [Choose] Helicase [Choose ]
If one strand of a DNA double helix has the nitrogen base sequence CGTACTG, what is the sequence of the DNA strand complimentary to this? O GCAUGAC OCTGCAGT O GACGUCA GTCATGA OGCATGAC