Biochemistry (Looseleaf)
9th Edition
ISBN: 9781319114800
Author: BERG
Publisher: MAC HIGHER
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Chapter 5, Problem 3P
Interpretation Introduction
Interpretation:
The average distance between the cleave sites for the given enzymes AluI and NotI on digestion of double stranded DNA is to be stated.
Concept introduction:
The restriction enzymes are generated mostly by the bacteria. In the formation of recombinant DNA, the restriction enzymes are involved to cut the particular region in the DNA molecule. This region is known as restriction site.
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gene. If the JM109 strain is transformed by the PBKSK plasmid, the strain will produce the B-galactosidase (from the lac gene)
and will hydrolyze X-gal to produce the blue compound. Therefore, colonies that were transformed and contain the pBSKS wil
you
appear blue.
IPTG &
X-Gal &
NO colonies
Amp
E. coli JM109
E. coli JM109
50 mM calcium
chloride-15% glycerol
lac
lac
lac
IPTG &
I Recovery
X-Gal
solution at -702C
PBSKS
White colonies
E. coli JM109
E. coli JM109
ampR
amp I
amp
lac
lac
Heat Shock
Non-transformed
42°C
E. coli JM109
E. coli JM109
amps
amps
lac
lac
IPTG &
X-Gal
lac I
Recovery
lac
PBSKS
BLUE colonies
PBSKS
ampRI
(amp
Transformed
IPTG &
X-Gal &
BLUE colonies
Amp
Hypotheses: Circle the correct answer
1. If PBSKS is transformed into JM109 cells, colonies will be (able/not able) to grow in the presence of ampicillin.
a. Why?
_
2. If PBSKS is transformed into JM109 cells, colonies in media with IPTG (will/will not) induce the production the B-
galactosidase enzyme.
a. Why?_
3. If…
Please help me solve this problem. I am really having a hard time understanding this lesson. Please help. Kindly provide all the necessary information to this problem. Thank you! Please answer numbers 1-5
determine what amino acid will be formed from the given DNA strand below:
3’ T A C A T G C C G A A T G C C 5’
Note: Prepare the partner strand of this DNA. Discuss how will replication happen by mentioning the enzyme needed then transcribe to form mRNA. Discuss what will happen to mRNA, then translate, mentioning the anticodon to be used. Look at the genetic code to know what amino acid will become part of the polypeptide chain.
1. Partner DNA strand
2. the mRNA strand
3. The tRNA
4. the formed amino acids
5. the discussion of the entire procedure
Pstl.
EcoRI
Origin of
replication
(ori)
Ampicillin Tetracycline
resistance resistance
(Amp) (Tet")
pBR322
(4,361 bp)
BamHI
Pvull
Sall
Recombinant
Plasmid DNA
Bacterial cell contains...
No plasmid DNA
pBR322 (no insert)
Recombinant plasmid
00,000.
Host DNA
Transformation
of E. coli cells
+AMP plate
pBR322
Figure 7-5
+TET plate
Based on the recombinant plasmid growth pattern (bottom row of blue table), which of
the depicted plasmid's restriction sites was used to prepare this sample? Explain how
you can tell.
Chapter 5 Solutions
Biochemistry (Looseleaf)
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- please help me with thi question. What advantages do CRISPR‑Cas systems have over restriction enzymes and engineered nucleases for editing DNA? The options are attached. Multiple answers can be chosenarrow_forwardQuestion. What would the forward primer sequence look like if it were intended to bind the area of the DNA template?arrow_forwardClose contact. Examination of the structure of DNA polymerases bound to nucleotide analogs reveals that conserved residues come within van der Waals contact of C-2'C-2' of the bound nucleotide. What is the potential significance of this interaction?arrow_forward
- True or False. Just write T if it is true and F if it is false. In E. coli both RNA and protein synthesis take place in the cytoplasm. Okazaki fragments are ssDNA CHAINS OF 100-200 nucleotides long, primed by very short RNA primers in bacteria. In eukaryotic gene, the coding sequences are known as introns while the intervening sequences are the exons. The central dogma refers to the fact that proteins are products of information encoded in RNA using a DNA intermediate. The ends of the linear chromosomes are maintained by telomerase to prevent it from shortening during mitosis. The Shine Delgarno sequence is where the RNA pol binds during transcription in prokaryotes The sigma subunit of the E. coli RNA polymerase confers specificity to transcription. Both DNA replication and transcription follow a 5’ to 3’ direction of polarity. Nucleosomes are the structural unit of chromatin. In the lagging strand, the enzyme X removes RNA primers attached by PRIMASE and this gap is then filled…arrow_forwardorganisms ha varieties. Through this process, several genetically (10) been produced. What I Can Do Activity 7: MATCHY MATCHY Direction: Match the purpose to the components found in the box below. Antibiotic Resistance Gene Multiple Cloning Site Promoter DNA Inserted Gene Sequence Multiple Cloning Site 1. Allows the controlled expression of the desired gene in the presence of an inducing agent (e.g., beta-galactosidase; heat treatment (~65°"C) 2. DNA sequence or portion for the insertion of the desired gene. This section may contain sequences that will be cut by specific restriction endonucleases ( cuts within the molecule) 3. Successful insertion of a gene allows the expression of its protein product. This usually provides a specific trait to the "transformed" bacteria. 4. Provides a way to screen a population of bacteria for those that took up the plasmid. For example, if an ampicillin resistance gene is encoded in the plasmid, then only bacteria 10 t4arrow_forwardTrue or False. Topoisomerase I does not require ATP to break and rejoin DNA strands because the energy of the phospho-diester bond is stored transiently in a phospho-tyrosine linkage in the enzyme’s active site. Explain your answer in 2-3 sentences.arrow_forward
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