Homework Answers
Question: For each terms given below,indicate what type of molecule it is?
Answer: 1.Operator: DNA
Operator is a genetic sequence where it allows proteins which is responsible for the transcription to attach the DNA sequence.It mainly controls the production of certain portions of DNA.
2.Operon: DNA
Operon is nothing but functioning unit of the DNA which contains many genes in cluster.It is controlled by a single promoter and it helps in transcription and genetic regulation.
3.Lactose: carbohydrate.
Lactose is a sugar(disaccharide)which is found in milk.It is made up of two carbohydratyes i.e Glucose and Galactose.lactose molecular formula is C12H22O11.
4.Transcription Factor: Protein.
These are proteins which helps in the process of transcribing genetic information from the DNA to messenger RNA.It initiates and regulates the genetic transcription.
5.Promoter: DNA
Promoter is a DNA sequence which helps to initiate the biological process of particular genetic transcription.It controls binding of RNA Polymerase to DNA where it converts to mRNA and finally translated to functional protein.
6.Gene: DNA
Genes are nothing but the sequence of nucleotides in DNA and RNA.these are the main reason for heredity and expresses traits by specifying structure of particular polypeptide.
Add Answer to:
2. For each of the following terms, indicate what type of biological molecule it is (DNA,...
The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is...
The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is absent. Predict the ways in which the following conditions will affect the transcription of the lactose-utilization genes. OPERON Regulatory Promoter Operator_ gene Lactose-utilization genes DNA mRNA RNA polymerase cannot attach to promoter Active repressor Protein If a mutation in the regulatory gene results in a misfolding of the repressor protein so that it can no longer bind DNA, the lactose-utilization genes O Will be...
A) An Operon is:? 1- A gene that affect another gene transcription. 2. A gene coding...
A) An Operon is:? 1- A gene that affect another gene transcription. 2. A gene coding for a metabolic pathway. 3. A protein that blockgene expression. 4. A set of genes under the control of one promoter. B )- In bacteria the Lac Operon genes code for proteins that break down.? 1- Arabinose 2- Lactose 3- Galactose 4- Glucose C )mRNA processing involves removal of .......? 1- Introns 2- The poly-A tail 3- The 5' cap 4- Exons D )...
Page 2 of 8 12. What type of mutationales the base, but not the amino acid...
Page 2 of 8 12. What type of mutationales the base, but not the amino acid being coded for? mutations? point nonsense 12. framstiftis caused by m ense and insertion misense and nonsense Dansene and deletion 2 doletion and insertion insertion and nonsense 14. A mutation that changes a normal codon to a stop codon is called a #paint mutation silent mutation & back mutation 2 misserse mutation & nonsense mutation 15. Repreble operons require that_ bind to the repressor...
9. Using the diagram of the lac operon (regulates transcription of genes for lactose metabolizing enzymes)...
9. Using the diagram of the lac operon (regulates transcription of genes for lactose metabolizing enzymes) below, draw the appropriate positions for RNA polymerase and the CAP activator molecule when CAMP is present. Then draw the appropriate position for the repressor molecule when lactose is present as an inducer. Finally, indicate whether or not transcription occurs. (8 pts) Promoter Operator Gene 1 Gene 2 Gene 3
Yet, all the cells in your body contain the same genes (and same alleles). The difference...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
The gene machine program shows you what happens when lactose is present in E. coli, and...
The gene machine program shows you what happens when lactose is present in E. coli, and how the lac operon is under negative control. However, the lac operon is also under positive control from a protein called CRP, eAMP Receptor Protein. The absence of the lac repressor is essential but not sufficient for effective transcription of the lac operon. RNA polymerase also depends on the presence of CRP. Like the lac repressor, which can bind to the DNA and lactose....
Match each term associated with genes and control of gene expression with the appropriate description. A...
Match each term associated with genes and control of gene expression with the appropriate description. A transcriptional unit" that consists of promoter multiple genes under the control of a single regulatory element. A transcriptional regulatory protein (prokaryotic or eukaryotic) which works by turning on or increasing gene transcription. activator The region of a gene to which RNA polymerase binds. Enhancer A transcriptional regulatory protein prokaryotic or eukaryotic) which works by turning off or decreasing gene transcription. repressor A molecule that...
please help me with the question 15 to 18. Basic structure of an operon Note that...
please help me with the question 15 to 18.
Basic structure of an operon Note that the diagram below is one section of DNA master strend with some areas of DNA labeled in blocks The bracketed area illustrates the basic parts of an operon repressor gene promoter operator structural genes DNA 3 mRNA 5 - 3 repressor protein shown attached to operator #2 Repressor preten "Use purple to color in the repressor gene. The repressor gene codes for a repressor...
The following activity will give you practice with the two operons we discussed - the lac...
The following activity will give you practice with the two operons we discussed - the lac operon and the trp operon. Below are two scenarios to consider. You will need to determine whether or not transcription is occurring and describe what is happening in the cell using our operon vocabulary words - regulatory gene, RNA polymerase, operator, promoter, repressor, and genes. 1. Bobby Joe just enjoyed an In and Out milkshake, how will the E. coli in her stomach respond?...
In the lac operon, what are the likely effects on operon transcription of the mutations listed...
In the lac operon, what are the likely effects on operon transcription of the mutations listed below? PLEASE EXPLAIN your answers. I think I answered the first part of the question but need help explaining why. Mutation of the consensus sequence in the lac promoter. i. Transcription is blocked. Mutation of the repressor binding sites in the operator sequences. i. Transcription is constitutive. Mutation of the lacI gene affecting the allosteric site of the protein. i. Transcription is blocked. Mutation...
The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is absent. Predict the ways in which the following conditions will affect the transcription of the lactose-utilization genes. OPERON Regulatory Promoter Operator_ gene Lactose-utilization genes DNA mRNA RNA polymerase cannot attach to promoter Active repressor Protein If a mutation in the regulatory gene results in a misfolding of the repressor protein so that it can no longer bind DNA, the lactose-utilization genes O Will be...
Page 2 of 8 12. What type of mutationales the base, but not the amino acid being coded for? mutations? point nonsense 12. framstiftis caused by m ense and insertion misense and nonsense Dansene and deletion 2 doletion and insertion insertion and nonsense 14. A mutation that changes a normal codon to a stop codon is called a #paint mutation silent mutation & back mutation 2 misserse mutation & nonsense mutation 15. Repreble operons require that_ bind to the repressor...
9. Using the diagram of the lac operon (regulates transcription of genes for lactose metabolizing enzymes) below, draw the appropriate positions for RNA polymerase and the CAP activator molecule when CAMP is present. Then draw the appropriate position for the repressor molecule when lactose is present as an inducer. Finally, indicate whether or not transcription occurs. (8 pts) Promoter Operator Gene 1 Gene 2 Gene 3
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
The gene machine program shows you what happens when lactose is present in E. coli, and how the lac operon is under negative control. However, the lac operon is also under positive control from a protein called CRP, eAMP Receptor Protein. The absence of the lac repressor is essential but not sufficient for effective transcription of the lac operon. RNA polymerase also depends on the presence of CRP. Like the lac repressor, which can bind to the DNA and lactose....
Match each term associated with genes and control of gene expression with the appropriate description. A transcriptional unit" that consists of promoter multiple genes under the control of a single regulatory element. A transcriptional regulatory protein (prokaryotic or eukaryotic) which works by turning on or increasing gene transcription. activator The region of a gene to which RNA polymerase binds. Enhancer A transcriptional regulatory protein prokaryotic or eukaryotic) which works by turning off or decreasing gene transcription. repressor A molecule that...
please help me with the question 15 to 18.
Basic structure of an operon Note that the diagram below is one section of DNA master strend with some areas of DNA labeled in blocks The bracketed area illustrates the basic parts of an operon repressor gene promoter operator structural genes DNA 3 mRNA 5 - 3 repressor protein shown attached to operator #2 Repressor preten "Use purple to color in the repressor gene. The repressor gene codes for a repressor...
The following activity will give you practice with the two operons we discussed - the lac operon and the trp operon. Below are two scenarios to consider. You will need to determine whether or not transcription is occurring and describe what is happening in the cell using our operon vocabulary words - regulatory gene, RNA polymerase, operator, promoter, repressor, and genes. 1. Bobby Joe just enjoyed an In and Out milkshake, how will the E. coli in her stomach respond?...
Most questions answered within 3 hours.
-
Arbitration of disputes under the purview of "lemon laws" under
state statute is:
not required by...
asked 10 minutes ago -
Describe three pieces of evidence that mitochondria and evolved
from symbiotic mutualisms between a eukaryote (or...
asked 17 minutes ago -
An AM transmitter with a carrier power of 20 kW is connected to
a 50 Ω...
asked 26 minutes ago -
JAVA
Beginnings of a paper-rock-scissors game.
Paper-rock-scissors is a game often used to make decisions.
There...
asked 30 minutes ago -
Consider a concept learning example of 5 attributes. Attributes
can take one of (5,3,2,2,6) values respectively....
asked 36 minutes ago -
Red light of wavelength 675 nm is incident on a slit of width
4.56 × 10−6...
asked 46 minutes ago -
An object 4.0 mm high is on the optical axis of two lenses with
focal lengths...
asked 43 minutes ago -
Suppose that each team in a league has a demand curve for
generic advertising (a league-wide...
asked 43 minutes ago -
1. The WJC purchases denim. The avg. daily demand of
western is 1000 yards and the...
asked 51 minutes ago -
Memory Allocation
a) Is it possible to have both internal and external
fragmentation with fixed partition...
asked 52 minutes ago -
Steven can afford car payments of $300 a month for 72 months.
The bank will lend...
asked 1 hour ago -
Embedded
System..
1.
Analyze
the instruction
sets below.
LDR R1, [R0,
#0x08]
SUB R1, R1,
R2,...
asked 1 hour ago