exs 8 Questions

questions 23-31

#41 and #42

Important steps in sequencing pure proteins include all of these except: a. Determining the amino acids on the ends of the smaller peptides b. Determining the amino acids on the ends of the protein c. Determining the isoionic pH of the protein d. Determining the amino acid composition e. Breaking the protein into smaller peptides   It is impossible to sequence a protein if you do not have overlapping sequences to work with. A. True B. False

Based on the following nucleotide structure, answer the following questions: H2N N- Но-Р-о- N. OH a. Is the base present in this nucleotide a purine or a pyrimidine? b. What is the abbreviation for the base present in this nucleotide? (A, T, C, G, U) Would the sugar in this nucleotide be found in molecules of DNA or RNA or both? d. Would the base in this nucleotide be found in molecules of DNA, RNA or both?

Are the following compounds correct? These may OR may not be correct. Please look them over and correct them if needed. Please list what was done incorrectly if applicable. b. Is the following nucleotide found in DNA? If not, please explain why. a. Is the following tRNA correct? NH2 VALINE <5' N. 3'- 0=P-0-CH2 ОН ОН GUA a. b. DNAA=T G=C

On your Scantron, best possible answer for each question and fill in the corresponding bubble on your Scantron There are 50 total questions, each worth 3 points. 1. Which structure represents a nucleotide? A) CH,O- -O. 0- OH ОН B) NH2 CH, H H OH OH C) HO-CH, OH H H H. OH H H D) NH, 0. CH, OH OH 0-P=0 2. Which vitamin is fat soluble?

nucleotides 2 Which component is not found in a nucleotide? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. phosphate b. base sulfate saccharide

The DNA of bacteriophage lambda has 1.2 x 10^5 nucleotides. How many proteins of molecular weight 40,000 could be coded by this DNA? Assume a molecular weight of 100 for the average amino acid.

ANALYSIS 1. A viral genome is composed of a double stranded DNA molecule containing 14% T (thymine). Based on this information, what would be the percentage of cytosine?

1. Draw the two Watson-Crick Bases Pairs and show how G- C and A-T recognize each other by hydrogen bonding. 2. Draw the full structure of two nucleotides - one from DNA and one from RNA. Point out the key difference between the two. 3. Write out an example of a condensation reaction forming a phosphate-sugar bond. 4. Write out an example of a condensation reaction between a nucleic acid base and a sugar. 5. State the "Central Dogma" of biochemistry.

For the tripeptide ala-lys-phe a) Draw the structure of the peptide you would expect at pH 1. Show all lone pairs of electrons and show formal charges. Determine the charge on the tripeptide. b) Draw the structure of the peptide you would expect at pH 7. Show all lone pairs of electrons and show formal charges. Determine the charge on the tripeptide..

Suppose that you were to construct an octapeptide utilizing seven valines and one alanine. How many different octapeptides could you construct? Question 10 Write the complementary DNA base sequence for the following DNA segment. Indicate the 5' and 3' ends. (Type these in with no gaps - for example 5'BBZZ3') 5'GCATCATG3

if the RNA molecule is 40 residues long and all four bases can be at any reidue, then the total number of RNA molecules 4^40. show complete calculations, including units

01 g indow 110 © Macmillan Learning Help achieve.macmillanlearning.com 3 X Chapter 11 HW - General, Organic, and Biological C Place an asterisks (*) next to the 3' carbon atoms in the polynucleotide shown. O O-P-O-CH2 Guanine Answer Bank H H Ο H O H Incorrect Answer O P―0-CH2 Thymine H H H Cytosine O I- O P―O-CH2 H H Ο H OH H What is the name of this polynucleotide? O CGT ○ CTG ○ GTC ↓ TCG NOV 21 Incorrect Answer M ப A Solution Resources Penalized

How can we quantify the amount of energy required to generate a concentration gradient (Figure 13.1)?

Kk.283.

Select the single best answer. Watson and Crick determined that the DNA molecule has two helical strands. Each strand is made up which consist of a base, a deoxyribose, and a phosphate group linked together. of What word most correctly fills in the blank in the preceding statement? nucleotides fatty acids monosaccharides amino acids

264&OpenVellumHMAC-ab644d9786730f4650f72638a7bd0c5b#10001 Part A L Submit Part B amylose and cellulose Match the words in the left column to the appropriate blanks in the sentences on the right. a(16) B(14) a(12) glucose a(14) 8(16) a(12) fructose Request Answer a(12) B(16) a(16) cellulose and chitin Match the words in the left column to the appropriate blanks in the sentences on the right. glucose -tose also called - Search a(14) fructose 8(14) B(12) x | + Both are linear polysaccharides composed entirely of linkages are but in cellulose, they are Both are linear polysaccharides with 2 DELL and chitin contains N-acetylglucosamine. A Q Reset Help In amylose, the glycosidic glycosidic bonds. Cellulose contains he Reset Help ENG Constants

Deoxyadenosine monophosphate (dAMP) and guanosine monophosphate (GMP) are nucleotides. The similarities between dAMP and GMP are that they both have? -an alpha (central) carbon.-the same R group.-a phosphate group.-a pentose (5 sided) sugar-an amino group-a nitrogenous base.

Youlube Maps EDD Debit Card - H... Ahthem Blue Cross.... 3rd Grade Mat... Question 9.b of 20 A nucleotide contains a sugar, a phosphate, and a base. A picture of a nucleotide is shown, deoxyadenosine 5'-monophosphate. What type of functional group connects the phosphate to the sugar (shown in the box)? NH2 A) phosphodiester B) ester C) phosphoester D) phosphoric acid ОН 62°F 近

Please don't provide handwritten solution ....

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Question 31 Use the following chromatogram of standard amino acids: 5 24 11 4 16 19 3 12 15 23 6 8 9 14 13 14 17 18 20 22 1. 2 6 8 10 12 14 16 18 20 22 24 26 Time (min) Which of the following choices describe structurally similar compounds in the chromatogram? O Peak 11 and 24 O Peak 14 and 22 O Peak 12 and 21 O Peak 4 and 5 21 2. 2. [nu)

What is the final DNA concentration when a 10 μl of DNA at a concentration of 4 µg/μl is diluted to 50 μl with sddH₂O?

This technique uses the principle of isoelectric point to separate a mixture of proteins into its pure constituents.Immersive Reader electrophoresis paper chromatography X-ray diffraction polymerase chain reaction

Draw a complete lewis dot structure(showing all atoms,bonds,ione pairs, and charges) of the nucleotide DEOXYCYTIDYLATE and clearly circle the phosphoester bond in the structure. The base is Cytosine and the sugar is Deoxyribose.

Protein sequence is always read (blank) terminal to (blank) terminal.  And DNA sequence is always read (blank) prime to ( blank) prime.  I need help filling in the blanks please? ? Thanks

11. Draw the dinucleotide containing two molecules of 5'-monophosphate-guanosine in the space below.

Section one. Match enzyme or molecule with its function in bacteria. Answers may be used more than once or not at all. DNA ligase d. tRNA promoter а. g. b. DNA helicase 1RNA h. terminator е. RNA polymerase f. DNA polymerase III i. stop codon с. 37. main enzyme in catalyzing DNA → mRNA transcription 38. unwinds double-stranded DNA at the replication fork 39. Where transcription stops 40. adds new DNA bases in the 5'→3’ direction 41. the "translator" molecule 42. contains codons 43. contains anti-codons