What is 15n - Study guides, Class notes & Summaries

Describe the function of the E1, E2, and E3 enzymes in the ubiquitinating system. Why are there ~500 E3 genes in the human genome but only two E1 genes? correct answers E1 enzymes attached ubiquitin to E2 enzymes, E2 enzymes conjugate ubiquitin to target proteins, and E3 enzymes recognize target proteins and facilitate ubiquitination by interacting directly with E2-ubiquitin and the target protein. E3 proteins must recognize a large number of target proteins, and thus there are hundreds of diffe...

4. Which of the following sequence is the correct one for replicating DNA? Not all the steps are included. I. RNA Primers anneal to the DNA template II. ssDNA binding proteins bind to stabilize single strand DNA after helicase unwinds it. III. RNA primers are removed and new DNA strand is made by DNA polymerase IIV. DNA ligase connects the DNA fragments V. Complementary copy of DNA is made by DNA polymerase III A) I, II, III, IV, V B) II, III, IV, I, V C) V, I, III, II, IV D) II, I, V, ...

What enzymes are involved in DNA replication? - ANSWER-DNA dependent DNA polymerase is DNA replication anabolic or catabolic - ANSWER-anabolic what were the 3 competing models of DNA replication - ANSWER-- semiconservative - conservative - dispersive semiconservative DNA replication - ANSWER-each daughter DNA molecule is composed of one original strand and one new strand conservative DNA replication - ANSWER-- the parent strands separate and act as templates - then the original parent...

How is the Ames test used to quantitate mutagenic potential of chemical compounds? Select the TWO best answers. correct answers The Salmonella test strain used in the Ames test contains a mutation in the histidine biosynthetic pathway, which is used to identify compounds that induce back mutations to permit bacterial growth on histidine free plates. The chemical compound to be tested is added to a filter paper disk and placed on agar plates containing the tester Salmonella strain; potent muta...

CHEM 101 Chapter 4 Newest Exam Questions with All Correct Answers A sample of chlorine has two naturally occurring isotopes. The isotope Cl-35 makes up 75.8% of the sample, and the isotope Cl-37 makes up 24.3% of the sample. Which of the following statements is true? A) The atomic mass of chlorine will be less than 35. B) The atomic mass of chlorine will be more than 37. C) You cannot tell what the atomic mass will be. D) The atomic mass will be between 35 and 37. E) The atomic mass ...

Genetics Module 2 Exam With Questions and Answers 100% Solved What are the four nucleotides that make up RNA? - answerAdenine, Guanine, Cytosine, Uracil What three general characteristics must the genetic material possess? - answerGenetic material must: 1. Contain complex information 2. Replicate faithfully 3. Encode the phenotype A segment of DNA from Drosophila melanogaster has the sequence: 5' TCA AGC TTA AGA AGG CAT TTT 3' (i) Assuming that this is the template strand, what is t...

Genetics Module 2 Exam With Questions and Answers 100% Solved What are the four nucleotides that make up RNA? - answerAdenine, Guanine, Cytosine, Uracil What three general characteristics must the genetic material possess? - answerGenetic material must: 1. Contain complex information 2. Replicate faithfully 3. Encode the phenotype A segment of DNA from Drosophila melanogaster has the sequence: 5' TCA AGC TTA AGA AGG CAT TTT 3' (i) Assuming that this is the template strand, what is t...

If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel efficiency in Kilometers per liter? ( 1Km= 0.621 mile, 1.00 L=1.057 quarts and 4 quarts = 1 gallon) - Answer-9.4 Km/L *What is the correct answer to the following expression: (49.1 - 42.61 ) x 13.1? - Answer-85 An intensive property of a substance is independent of amount. - Answer-True Lithium has two stable isotopes with masses of 6.01512 amu and 7.01600 amu. The average atomic mass of Li is 6.941 amu. What ...

Analyzing runtime Insert element into position 0 of an array of size n (in java) correct answers Runs in linear time, (if the array is size n and you double it, time will be doubles as well, this is a good way to think about linear time). Analyzing runtime Retrieving an element from an array of size n (at a particular index, in java). correct answers When the CPU has to do the arithmetic to get the element from the specified index, it's a constant time operation. The arithmetic barle...

If 15N DNA replicated using conservative replication in 14N media, the outcome would be that new DNA has correct answers one high density and one low density strand What accounts for the high fidelity of DNA polymerization? Choose the ONE best answer. correct answers Active site geometry ensures that only correct sized nucleotide base pairs are formed, and 3' to 5' proofreading removes incorrect nucleotides. How can DNA strands be synthesized using bidirectional replication? correct answ...