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Questions:
1. SSB proteins bind to single-stranded DNA at the replication fork and prevent the formation of short hairpin helices thatwould otherwise impede DNA synthesis. What sorts of sequences in single-stranded DNA might be able to form ahairpin helix? Write out an example of a sequence that could form a 5-nucleotide hairpin helix, and show the helix.
2. One remarkable feature of the genetic code is that amino acids with similar chemical properties often have similar codons.Codons with U or C as the second nucleotide, for example, tend to specify hydrophobic amino acids. Can you suggest apossible explanation for this phenomenon in terms of the early evolution of the protein synthesis machinery?
3. (True/False) When read in the same direction (5' to 3'), the sequence of nucleotides in a newly synthesized DNA strand isthe same as in the parental template strand. Explain your answer.
Hamburger ground under the best condition often has a bacterial count of 1000-10,000 per g due to contamination. If your sample had 10^6 bacteria per g, could this number have been just contamination or would the cells present have had to grow? W..
Describe the role of water as a component of digestivejuices.
why is the heart described as a double pump? describe the general structure of arteries and veins. how are they
A wild-type trihybrid soybean plant is crossed to a pure-breeding soybean plant with the recessive phenotypes pale leaf l, oval seed, and short height Compute the recombination fraction between T and L pair of genes.
State the purpose of performing Quality Control tests. What is the minimum number of QC levels that must be tested. How often are QC tests performed?
During postmortem aging and the resolution phase of rigor,
Think about a cross between two strains of peas that differ at all seven of the traits that Mendel used (a heptahybrid cross)? Among the F2 offsprings:
Use Figure 1 and 9C in the paper by Carr & Konishi, calculate the conduction velocities for the ipsilateral and contralateral axons from the nucleus magnocellularis within nucleus laminaris.
You are being protected in a secluded hotel from ACLU lawyers and right-wing demonstration groups. Here is your question: is intelligent design theory scientific
The inner chloroplast membrane is impermeable to large, polar and ionic compounds such as NADH and ATP. However, the membrane has an antiport protein that facilitates the passage of dihydroxyacetonephosphate or 3-phosphoglycerate in exchange for P..
In cells that have a G α subunit that cannot hydrolyze GTP but can interact properly with G β and G γ.
What is the largest object in our solar system and Who first introduced the idea that the Sun is the center of the universe
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