What is the CAP binding site? -Biology

What is the CAP binding site? -Biology
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Binding of RNA polymerase holoenzyme to the promoter region of lac operon is facilitated by (A) Catabolite gene activator protein (CAP) (B) cAMP (C) CAP-cAMP complex (D) None of these

Description : Binding of RNA polymerase holoenzyme to the promoter region of lac operon is facilitated by (A) Catabolite gene activator protein (CAP) (B) cAMP (C) CAP-cAMP complex (D) None of these

Last Answer : Answer : C

Antigen binding site in an antibody is found between:

Description : Antigen binding site in an antibody is found between:

Last Answer : Antigen binding site in an antibody is found between: A. two light chains B. two heavy ... one light chain depending upon the nature of antigen

Antigen binding site in an antibody is found between:

Description : Antigen binding site in an antibody is found between:

Last Answer : Antigen binding site in an antibody is found between: A. two light chains B. two heavy ... one light chain depending upon the nature of antigen

Is a binding site part of an enzyme structure?

Description : Is a binding site part of an enzyme structure?

Last Answer : What is the answer ?

The region of DNA known as TATA BOX is the site for binding of (A) DNA polymerase (B) DNA topoisomerase (C) DNA dependent RNA polymerase (D) Polynucleotide phosphorylase

Description : The region of DNA known as TATA BOX is the site for binding of (A) DNA polymerase (B) DNA topoisomerase (C) DNA dependent RNA polymerase (D) Polynucleotide phosphorylase

Last Answer : Answer : C

In the process of elongation of chain binding of amino acyl tRNA to the A site requires (A) A proper codon recognition (B) GTP (C) EF-II (D) GDP

Description : In the process of elongation of chain binding of amino acyl tRNA to the A site requires (A) A proper codon recognition (B) GTP (C) EF-II (D) GDP

Last Answer : Answer : A

In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core enzymes of RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

Description : In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core ... RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

Last Answer : Answer : C

The nucleotide binding site of G-proteins is present on their (A) α-Subunit (B) β-Subunit α- and β- (C) γ-Subunit (D) δ-Subunit

Description : The nucleotide binding site of G-proteins is present on their (A) α-Subunit (B) β-Subunit α- and β- (C) γ-Subunit (D) δ-Subunit

Last Answer : Answer : A

G-proteins have a nucleotide binding site for (A) ADP/ATP (B) GDP/GTP (C) CDP/CTP (D) UDP/UTP

Description : G-proteins have a nucleotide binding site for (A) ADP/ATP (B) GDP/GTP (C) CDP/CTP (D) UDP/UTP

Last Answer : Answer : B

An allosteric enzyme influences the enzyme activity by (A) Competiting for the catalytic site with the substrate (B) Changing the specificity of the enzyme for the substrate (C) Changing the conformation of the enzyme by binding to a site other than catalytic site (D) Changing the nature of the products formed

Description : An allosteric enzyme influences the enzyme activity by (A) Competiting for the catalytic site with the substrate (B) Changing the specificity of the enzyme for the substrate (C) Changing the conformation ... binding to a site other than catalytic site (D) Changing the nature of the products formed

Last Answer : Answer : C

Characteristic features of active site are (A) Flexible in nature (B) Site of binding (C) Acidic (D) Both (A) and (B)

Description : Characteristic features of active site are (A) Flexible in nature (B) Site of binding (C) Acidic (D) Both (A) and (B)

Last Answer : Answer : D

A substance unrelated to substrate but capable of reversibly changing activity of enzyme by binding to a site other than active site is called (a) Competitive inhibitor (b) Non-competitive inhibitor (c) Catalytic inhibitor (d) Allosteric modulator/inhibitor

Description : A substance unrelated to substrate but capable of reversibly changing activity of enzyme by binding to a site other than active site is called (a) Competitive inhibitor (b) Non-competitive inhibitor (c) Catalytic inhibitor (d) Allosteric modulator/inhibitor

Last Answer : Ans. ((d))

Which of the following statement(s) is/are true concerning the antibody response to an invading antigen? a. All antibodies are composed of one type of heavy and one type of light protein chain b. The carboxyl terminus of the heavy chain is the antigen binding site c. Antibody of the immunoglobulin G class is the initial antibody produced in response to an antigenic stimulus d. Immunoglobulins A, D, and E play an active role in the circulating humoral response

Description : Which of the following statement(s) is/are true concerning the antibody response to an invading antigen? a. All antibodies are composed of one type of heavy and one type of light protein chain b. ... stimulus d. Immunoglobulins A, D, and E play an active role in the circulating humoral response

Last Answer : Answer: a Humoral defenses consist of antibody (immunoglobulin; Ig) and complement. All Ig classes (IgM, IgG, IgA, IgE, IgD) and IgG subclasses are composed of one type (M, G, A, E, D ... exist in smaller amounts in the circulation and do not appear to play a major role as host defense components

Which of the following step of translation does not consume a high energy phosphate bond? (a) Peptidyl transferase reaction (b) Aminoacyl tRNA binding to A-site (c) Translocation (d) Amino acid activation

Description : Which of the following step of translation does not consume a high energy phosphate bond? (a) Peptidyl transferase reaction (b) Aminoacyl tRNA binding to A-site (c) Translocation (d) Amino acid activation

Last Answer : (b) Aminoacyl tRNA binding to A-site

Which of the following step of translation does not consume a high energy phosphate bond? (a) Peptidyl transferase reaction (b) Aminoacyl tRNA binding to A-site (c) Translocation (d) Amino acid activation

Description : Which of the following step of translation does not consume a high energy phosphate bond? (a) Peptidyl transferase reaction (b) Aminoacyl tRNA binding to A-site (c) Translocation (d) Amino acid activation

Last Answer : (a) Peptidyl transferase reaction

Which one of the following statements regarding enzyme inhibition is correct? (a) Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein. (b) Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme. (c) Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate. (d) Non-competitive inhibitors often bind to the enzyme irreversibly.

Description : Which one of the following statements regarding enzyme inhibition is correct? (a) Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein. (b ... large amount of substrate. (d) Non-competitive inhibitors often bind to the enzyme irreversibly.

Last Answer : (b) Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme

The _____ cell contains on its surface a CD4 receptor site that enhances binding to the macrophage. a. Helper T b. molecular patterns (PAMPs) c. plasma d. B

Description : The _____ cell contains on its surface a CD4 receptor site that enhances binding to the macrophage. a. Helper T b. molecular patterns (PAMPs) c. plasma d. B

Last Answer : a. IgG

An antigen binding site on the IgG antibody is a combination of a. One variable region from a light chain and one from a heavy chain. b. Two variable regions from two light chains. c. Two variable regions from two heavy chainsd. One variable region from a constant region and one from a variable region..

Description : An antigen binding site on the IgG antibody is a combination of a. One variable region from a light chain and one from a heavy chain. b. Two variable regions from two light chains. c. Two ... from two heavy chains. d. One variable region from a constant region and one from a variable region.

Last Answer : a. One variable region from a light chain and one from a heavy chain.

Which binding is inhibited by pactamycin? A- Aminoacyl-tRNA to the A-site of 30S subunit B- Initiator-tRNA to 30S/40S initiation complexes C- Peptidyl t-RNA to the 50S subunit D- Formation of peptide bond in P site

Description : Which binding is inhibited by pactamycin? A- Aminoacyl-tRNA to the A-site of 30S subunit B- Initiator-tRNA to 30S/40S initiation complexes C- Peptidyl t-RNA to the 50S subunit D- Formation of peptide bond in P site

Last Answer : Initiator-tRNA to 30S/40S initiation complexes

The ribosome binding site A- forms a stem-loop structure in the RNA B- is located upstream of the promoter sequence C- .is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein

Description : The ribosome binding site A- forms a stem-loop structure in the RNA B- is located upstream of the promoter sequence C- .is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein

Last Answer : .is located immediately upstream of the start codon

The Shine-Dalgarno sequence is A- trailer sequence B- a stop codon C- the reading frame of a gene D- a short sequence that acts as a ribosomal binding site

Description : The Shine-Dalgarno sequence is A- trailer sequence B- a stop codon C- the reading frame of a gene D- a short sequence that acts as a ribosomal binding site

Last Answer : a short sequence that acts as a ribosomal binding site

What is the action of tetracycline in prokaryotes? A- It blocks translocation reaction on ribosomes B- It blocks peptidyltransferase reaction on ribosomes C- It blocks the binding of amino-acyl tRNA to the A site of ribosomes D- Not known with certainity

Description : What is the action of tetracycline in prokaryotes? A- It blocks translocation reaction on ribosomes B- It blocks peptidyltransferase reaction on ribosomes C- It blocks the binding of amino-acyl tRNA to the A site of ribosomes D- Not known with certainity

Last Answer : It blocks the binding of amino-acyl tRNA to the A site of ribosomes

The rivosome binding site A- forms a sltem- loop structure in the RNA B- is located upstream of the promoter sequence C- is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein

Description : The rivosome binding site A- forms a sltem- loop structure in the RNA B- is located upstream of the promoter sequence C- is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein

Last Answer : is located immediately upstream of the start codon

The ribosome binding site A- forms a stem-loop structure in the RNA B- is located upstream of the promoter sequence C- .is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein

Description : The ribosome binding site A- forms a stem-loop structure in the RNA B- is located upstream of the promoter sequence C- .is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein

Last Answer : .is located immediately upstream of the start codon

The Shine-Dalgarno sequence is A- trailer sequence B- a stop codon C- the reading frame of a gene D- a short sequence that acts as a ribosomal binding site

Description : The Shine-Dalgarno sequence is A- trailer sequence B- a stop codon C- the reading frame of a gene D- a short sequence that acts as a ribosomal binding site

Last Answer : a short sequence that acts as a ribosomal binding site

What is the action of tetracycline in prokaryotes? A- It blocks translocation reaction on ribosomes B- It blocks peptidyltransferase reaction on ribosomes C- It blocks the binding of amino-acyl tRNA to the A site of ribosomes D- Not known with certainity

Description : What is the action of tetracycline in prokaryotes? A- It blocks translocation reaction on ribosomes B- It blocks peptidyltransferase reaction on ribosomes C- It blocks the binding of amino-acyl tRNA to the A site of ribosomes D- Not known with certainity

Last Answer : It blocks the binding of amino-acyl tRNA to the A site of ribosomes

Bacteria become erythromycin resistant by the following mechanisms except: A. Becoming less permeable to erythromycin B. Elaborating an erythromycin esterase enzyme C. Elaborating a ‘protection protein’ which blocks the erythromycin binding site D. Altering the ribosomal binding site through a methylase enzyme

Description : Bacteria become erythromycin resistant by the following mechanisms except: A. Becoming less permeable to erythromycin B. Elaborating an erythromycin esterase enzyme C. Elaborating a protection ... the erythromycin binding site D. Altering the ribosomal binding site through a methylase enzyme

Last Answer : C. Elaborating a ‘protection protein’ which blocks the erythromycin binding site

Bacteria develop tetracycline resistance by the following mechanisms except: A. Losing tetracycline concentrating mechanisms B. Elaborating tetracycline inactivating enzyme C. Synthesizing a ‘protection protein’ which interferes with binding of tetracycline to the target site D. Actively pumping out tetracycline that has entered the cell

Description : Bacteria develop tetracycline resistance by the following mechanisms except: A. Losing tetracycline concentrating mechanisms B. Elaborating tetracycline inactivating enzyme C. Synthesizing a protection protein' ... the target site D. Actively pumping out tetracycline that has entered the cell

Last Answer : B. Elaborating tetracycline inactivating enzym

What is the term given to enzymes whose action is modulated by binding of a molecule to a site other than the active site?

Description : What is the term given to enzymes whose action is modulated by binding of a molecule to a site other than the active site?  

Last Answer : ANSWER: ALLOSTERIC ENZYMES

What is the function of the root cap? -Biology

Description : What is the function of the root cap? -Biology

Last Answer : answer:

Phoenix AZ Cop yells "I'm gonna put a f*ing cap in your f*ing face" to mom & dad, in front of kids, who "stole" a doll. Your thoughts (see details)

Description : Phoenix AZ Cop yells "I'm gonna put a f*ing cap in your f*ing face" to mom & dad, in front of kids, who "stole" a doll. Your thoughts (see details)

Last Answer : I know what you are referring to but I haven’t heard or seen the video myself so I can’t comment.

Should I buy the cap?

Description : Should I buy the cap?

Last Answer : answer:If you like it and can afford it and will use it, then buy it. Usually if I’m thinking about buying something optional, I wait a day or two and think about it. It may or may not depend on how much it costs.

If there were intelligent aliens on a 'water planet,' would their environment hinder/ cap their technology? (details )

Description : If there were intelligent aliens on a 'water planet,' would their environment hinder/ cap their technology? (details )

Last Answer : Their hydro-electric systems are the sheeeeeet.

What's the best way to keep the shape of a ball cap when you launder it?

Description : What's the best way to keep the shape of a ball cap when you launder it?

Last Answer : Would something like this help?

Pet owners/lovers, what's your personal $$$ cap?

Description : Pet owners/lovers, what's your personal $$$ cap?

Last Answer : To be clear, I am not asking for advice, just personal stories/insights.

Do you have a locking gas cap on your vehicle, and if not, why not?

Description : Do you have a locking gas cap on your vehicle, and if not, why not?

Last Answer : I have a 10.6 gallon fuel tank. If someone is crafty enough to want to pry open my cap cover, get to the cap and steal my gasoline, I have to admit – I’d be impressed. And then I’d move.

Do I wear both of my tassels on my graduation cap or just one?

Description : Do I wear both of my tassels on my graduation cap or just one?

Last Answer : Is Beta club for those with high academic honors or something else?

Does a 1986 Chevrolet Camaro IROC Z28 has a vented gas cap?

Description : Does a 1986 Chevrolet Camaro IROC Z28 has a vented gas cap?

Last Answer : If it’s an ‘86 you need a non-vented cap.

Does Dr. J not want ********* to be over yet? Can we replace his Santa hat with a winter ski cap and the candy cane with ski poles?

Description : Does Dr. J not want Christmas to be over yet? Can we replace his Santa hat with a winter ski cap and the candy cane with ski poles?

Last Answer : Sure, do you know anyone who can program in Python?

I need gift ideas for a family ********* gift exchange. A unisex gift with a 50 dollar cap. Ideas?

Description : I need gift ideas for a family Christmas gift exchange. A unisex gift with a 50 dollar cap. Ideas?

Last Answer : answer:You could make up a gift basket with a theme. For example, if they're coffee drinkers, you could do various coffees (or teas) with a fancy or funny mug, or teapot and various teas and a tea ... put it in a basket, put some celophane on it and a pretty ribbon, make it look professional.

How can I prevent bees (or yellow jackets) from building another nest under my gas cap cover?

Description : How can I prevent bees (or yellow jackets) from building another nest under my gas cap cover?

Last Answer : answer:Wow. You must not fill up often! Wipe the area with rubbing alcohol (won't damage the paint) and then with citronella or lemon oil. That will deter the beasties. edit to add: Not ... is if you had a bad reaction to the sting. (bad reaction meaning difficulty breathing or extreme swelling)

Should I run the car with the radiator cap off to allow air bubbles to escape?

Description : Should I run the car with the radiator cap off to allow air bubbles to escape?

Last Answer : as log as you have it connected correctly, with a reserve tank, it will expel the air on it’s own with the cap in place. It is common to fill the radiator and run the engine with the cap off until it cycles at least once, to get the bulk of the air out.

Does wearing a hat or cap make a man's hair thin or fall out?

Description : Does wearing a hat or cap make a man's hair thin or fall out?

Last Answer : answer:Your wife is correct. Wearing hats in any form are not a cause for hair to thin or fall out. From what I've read, the main cause is due to hormonal changes. Some hormonal changes may be ... there are many other factors that can cause hair loss. Here is a list put together by the Mayo Clinic.

I just lost a cap! Well pretty much the whole tooth! How serious is this?

Description : I just lost a cap! Well pretty much the whole tooth! How serious is this?

Last Answer : I would think if there’s no pain, there’s no problem. After all, it’s already dead. I had to have a tooth pulled that had been capped. The dentist said the tooth itself was mush and almost rinsed away.

Is there any such thing as a shower cap for your home?

Description : Is there any such thing as a shower cap for your home?

Last Answer : Hire Christo to wrap your house. LOL Or contact local painters and roofers, or online theatrical set design [large fabric material are used in theatrical set design] and other sources for very large tarps or synthetic materials.

Anyone have some creative $ making small biz. ideas to share with a 10k cap on start-up?

Description : Anyone have some creative $ making small biz. ideas to share with a 10k cap on start-up?

Last Answer : If I did, what percentage would I get if you decided to go with my idea?

What's the purpose of the squatchee on a baseball cap?

Description : What's the purpose of the squatchee on a baseball cap?

Last Answer : A place for a beanie propeller to attach?

I need advice on how to fill out the CAP application.

Description : I need advice on how to fill out the CAP application.

Last Answer : Need Answer

What specific way do you crease a baseball cap?

Description : What specific way do you crease a baseball cap?

Last Answer : I’m the curl it type. 2 hands on either side and bend it towards the middle so it’s got that nice curled under shape. :).

When was the last time you've done something stupid like turn a bottle upside down with the cap off?

Description : When was the last time you've done something stupid like turn a bottle upside down with the cap off?

Last Answer : One morning I was so tired when I got up that I poured myself a cup of coffee with the mug upside down.