Is allolactose an isomer of lactose? -Biology

Is allolactose an isomer of lactose? -Biology
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Select the incorrect statement out of the five given below about lac operon when Lactose is present in the medium. a) Gene – A gets transcribed into mRNA which produces β-galactoside permease b) Inducer-Repressor complex is formed c) Lactose inactivates repressor protein d) RNA polymerase transcribe Z-gene, Y-gene and A-gene e) Allolactose is the inducer of lac operon

Description : Select the incorrect statement out of the five given below about lac operon when Lactose is present in the medium. a) Gene - A gets transcribed into mRNA which produces β-galactoside permease b) ... polymerase transcribe Z-gene, Y-gene and A-gene e) Allolactose is the inducer of lac operon

Last Answer : Gene – A gets transcribed into mRNA which produces β-galactoside permease b) Inducer-Repressor complex is formed

For the complex [Fe(en)2Cl2], Cl, (en = ethylene diamine), identify (i) the oxidation number of iron, (ii) the hybrid orbitals and the shape of the complex, (iii) the magnetic behaviour of the complex, (iv) the number of geometrical isomers, (v) whether there is an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry

Description : For the complex [Fe(en)2Cl2], Cl, (en = ethylene diamine), identify (i) the oxidation number of iron, (ii) the hybrid orbitals and the shape of the complex, (iii) the magnetic behaviour of the complex, (iv) ... an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry

Last Answer : i) [Fe(en)2Cl2] Cl or x + 0 + 2 (-1) + (-1) = 0 x + (- 3) = 0 or x = + 3 ∴ Oxidation number of iron, x = + 3 (ii) The complex has two bidentate ligands and two ... )2Cl2] Cl, only cis-isomer shows optical isomerism. (vi) Name of complex: Dichloridobis (ethane-1, 2- diamine) Iron (III) chloride

Give IUPAC name of the ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry

Description : Give IUPAC name of the ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry

Last Answer : IUPAC name : Triammine chlorido nickel (II) nitrate [Ni(NH3)3NO3]Cl

Give IUPAC name of ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry

Description : Give IUPAC name of ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry

Last Answer : IUPAC name : Triammine nitrato nickel (III) chloride

Which one of the following is a Z isomer ?

Description : Which one of the following is a Z isomer ?

Last Answer : Which one of the following is a Z isomer ? A. B. C. D.

What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts alkylation with t-butylbenzene ?

Description : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts alkylation with t-butylbenzene ?

Last Answer : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts ... o-isopropyl-t-butylbenzene D. none of these

P and Q are isomer of dicraboxylic acid `C_(4)H_(4)O_(4)` Both decolourixe `Br_(2)//H_(2)O`. On heating , P forms the cyclic anhydride. Upon treatment

Description : P and Q are isomer of dicraboxylic acid `C_(4)H_(4)O_(4)` Both decolourixe `Br_(2)//H_(2)O`. On heating , P forms the cyclic anhydride. Upon treatment

Last Answer : P and Q are isomer of dicraboxylic acid `C_(4)H_(4)O_(4)` Both decolourixe `Br_(2)//H_(2)O`. On ... sequences V and W are respectively A. B. C. D.

Which one of the following has an optical isomer ? (en=ethylenediamine )

Description : Which one of the following has an optical isomer ? (en=ethylenediamine )

Last Answer : Which one of the following has an optical isomer ? (en=ethylenediamine ) A. `[Zn(en)(NH_(3))_(2)]^(2+)` B. `[Co( ... en)]^(3+)` D. `[Zn(en)_(2)]^(2+)`

Which of the following has an optical isomer?

Description : Which of the following has an optical isomer?

Last Answer : Which of the following has an optical isomer? A. `[Co(en)(NH_(3))_(2)]^(2+)` B. `[Co(H_(2)O)_(4)(en)]^(3+) ... _(2)]^(3+)` D. `[Co(NH_(3))_(3)Cl]^(+)`

The ionisation isomer of `[Cr(H_(2)O)_(4) Cl (NO_(2))]Cl`

Description : The ionisation isomer of `[Cr(H_(2)O)_(4) Cl (NO_(2))]Cl`

Last Answer : The ionisation isomer of `[Cr(H_(2)O)_(4) Cl (NO_(2))]Cl` A. `[Cr(H_(2)O)_(4)(O_(2)N)]Cl_(2)` B. `[Cr( ... D. `[Cr(H_(2)O)_(4)Cl_(2)(NO_(2))].H_(2)O`

(A) Nuclear isomers have same atomic number and same mass number but with different radioactive properties. `U_((A))` and `U_((Z))` are nuclear isomer

Description : (A) Nuclear isomers have same atomic number and same mass number but with different radioactive properties. `U_((A))` and `U_((Z))` are nuclear isomer

Last Answer : (A) Nuclear isomers have same atomic number and same mass number but with different radioactive properties. `U_ ... both (A) and (R ) are incorrect.

Assertion: `p`-nitrophenol is a stronger acid than `o`-nitrophenol. Reason: Intramolecular hydrogen bonding makes the `o`-isomer weaker than the `p-`i

Description : Assertion: `p`-nitrophenol is a stronger acid than `o`-nitrophenol. Reason: Intramolecular hydrogen bonding makes the `o`-isomer weaker than the `p-`i

Last Answer : Assertion: `p`-nitrophenol is a stronger acid than `o`-nitrophenol. Reason: Intramolecular hydrogen bonding ... D. A is incorrect but R is correct

Which of the following is not an isomer of diethyl ether?

Description : Which of the following is not an isomer of diethyl ether?

Last Answer : Which of the following is not an isomer of diethyl ether? A. 2- methyl -2- propanol B. 2- Methoxypropane C. 2- Methyl -1- proponal D. Ethoxyethane

An isomer of ethanol is:

Description : An isomer of ethanol is:

Last Answer : An isomer of ethanol is: A. Methanol B. Dimethyl ether C. Diethyl ether D. Ethyl glycol

What type of isomer for C2H2Br2?

Description : What type of isomer for C2H2Br2?

Last Answer : Probable you think to CH2Br2, dibromomethane.

Living cells have the unique ability to synthesize only _________ the form of optical isomer due to _________. (A) ‘d’ form, stereospecific enzymes (B) ‘l’ form stereospecific enzymes (C) ‘d’ form, DNA (D) ‘L’ form, DNA

Description : Living cells have the unique ability to synthesize only _________ the form of optical isomer due to _________. (A) ‘d’ form, stereospecific enzymes (B) ‘l’ form stereospecific enzymes (C) ‘d’ form, DNA (D) ‘L’ form, DNA

Last Answer : Answer : B

An L-isomer of monosaccharide formed in human body is (A) L-fructose (B) L-Erythrose (C) L-Xylose (D) L-Xylulose

Description : An L-isomer of monosaccharide formed in human body is (A) L-fructose (B) L-Erythrose (C) L-Xylose (D) L-Xylulose

Last Answer : D

Gutta percha rubber is (A) Soft & tacky at room temperature (B) An isomer of natural rubber (C) A thermosetting resin (D) Recovered by coagulation of rubber latex

Description : Gutta percha rubber is (A) Soft & tacky at room temperature (B) An isomer of natural rubber (C) A thermosetting resin (D) Recovered by coagulation of rubber latex

Last Answer : (B) An isomer of natural rubber

which spin isomer would be 100% at OK?

Description : which spin isomer would be 100% at OK?

Last Answer : Ans. PARA H2

While separating a mixture of ortho and para-nitro phenols by steam distillation, name the isomer which will be steam volatile. Give reasons.

Description : While separating a mixture of ortho and para-nitro phenols by steam distillation, name the isomer which will be steam volatile. Give reasons.

Last Answer : In o-nitrophenol, there is intramolecular hydrogen bonding as follows : In p-nitrophenol, there is intramolecular hydrogen bonding as follows :   Due to intermolecular H ... -nitrophenol. Hence o-nitraphenol due to its lower b. p. is steam volatile while pnitrophenol is not.

Which isomer is common in nature?

Description : Which isomer is common in nature? 

Last Answer : D variety of sugars are common in nature.

Which of the following statements about propene, CH3CH=CH2, is correct? (a) All nine atoms lie in the same plane. (b) The compound has a cis and trans isomer. (c) There is a total of eight sigma bonds. (d) All the carbon atoms are sp2 hybridized

Description : Which of the following statements about propene, CH3CH=CH2, is correct? (a) All nine atoms lie in the same plane. (b) The compound has a cis and trans isomer. (c) There is a total of eight sigma bonds. (d) All the carbon atoms are sp2 hybridized

Last Answer : There is a total of eight sigma bonds.

Which compound is not an isomer of the other three? (a) n-Pentane (b) 2,2-Dimethylpropane (c) 2-Methylbutane

Description : Which compound is not an isomer of the other three? (a) n-Pentane (b) 2,2-Dimethylpropane (c) 2-Methylbutane

Last Answer : 2,3-Dimethylbutane

Lindane is (A) Not a fumigant (B) BHC (Benzene Hexachloride) containing 99% γ-isomer (C) A by-product of BHC manufacture (D) Both (B) and (C)

Description : Lindane is (A) Not a fumigant (B) BHC (Benzene Hexachloride) containing 99% γ-isomer (C) A by-product of BHC manufacture (D) Both (B) and (C)

Last Answer : (B) BHC (Benzene Hexachloride) containing 99% γ-isomer

The covalent bonding of atoms forms a/an a. Molecule. b. Ion. c. Element. d. Isomer.

Description : The covalent bonding of atoms forms a/an a. Molecule. b. Ion. c. Element. d. Isomer.

Last Answer : a. Molecule.

Methyl propane is an isomer of

Description : Methyl propane is an isomer of

Last Answer : n-butane

Which of the following is optically inactive? a. equimolar mixture of enantiomers b. Solution of pure enantiomer c. Mixture of enantiomers with enantiomeric excess of one isomer d. Molecule without symmetry elements

Description : Which of the following is optically inactive? a. equimolar mixture of enantiomers b. Solution of pure enantiomer c. Mixture of enantiomers with enantiomeric excess of one isomer d. Molecule without symmetry elements

Last Answer : a. equimolar mixture of enantiomers

Does this mean my toddler is lactose intolerant?

Description : Does this mean my toddler is lactose intolerant?

Last Answer : answer:You can try lactose free dairy milk and that would probably let you know pretty quickly if there would be a change without the lactose. There are usually several kinds right next to the ... a pretty simple check to rule that out though and then ask your pediatrician at your first visit.

I want to attend culinary school to become a chef, but I have celiac disease and I'm lactose intolerant. How difficult do you think it'll be to pursue that profession?

Description : I want to attend culinary school to become a chef, but I have celiac disease and I'm lactose intolerant. How difficult do you think it'll be to pursue that profession?

Last Answer : I would imagine chefs and cooks have to sample their food. If you put the food into your mouth and then spit it out, are you affected still? If you touch it, are you affected? I would think if you can do those two things without ill effects, then you should be ok.

Where can I find lactose-free cream?

Description : Where can I find lactose-free cream?

Last Answer : answer:Lactaid now makes its own ice cream. There is a list of places where you can buy it on the link. Most of the regular grocery stores here in California now stock lactose free products, but you ... some or all of these products, they can usually order them for you. Good luck and good eating!

Can you develop lactose intolerance later in life?

Description : Can you develop lactose intolerance later in life?

Last Answer : answer:Yes, I used to drink a gallon of milk a week. Now if I tried that I would not be pleasant to be around. Surprisingly I can still eat some cheese and yogurt in moderation. Try Farmer’s cheese, it sometimes is less irritable to some lactose intolerant people.

Can cheese be made with lactose-free milk?

Description : Can cheese be made with lactose-free milk?

Last Answer : answer:I'm confused. Are you trying to make cheese, or look for cheese to purchase that is suitable for lactose intolerance? If the later, look for vegan cheese substitute products. It's the dried milk ... cheddar - both in the block. The back of the packages say contains 0g of lactose per serving

Activia alternative for the lactose intolerant?

Description : Activia alternative for the lactose intolerant?

Last Answer : What about Lactaid tablets?

A good dessert for someone that's lactose-intolerant?

Description : A good dessert for someone that's lactose-intolerant?

Last Answer : Jello! Its not fancy but it is good, and fun to eat.

Lactose free dessert?

Description : Lactose free dessert?

Last Answer : Fruit, both cut and fresh.

No-lactose egg nog recipe? (soy milk, boiled, etc)

Description : No-lactose egg nog recipe? (soy milk, boiled, etc)

Last Answer : Or should I just buy a non-dairy / lactose free store-bought one, and spice it up a bit?

I am interested in Lactose Free Ice Cream recipes. I'm finding it hard to get around the need for cream. Any suggestions or recipes to share?

Description : I am interested in Lactose Free Ice Cream recipes. I'm finding it hard to get around the need for cream. Any suggestions or recipes to share?

Last Answer : I’ve had some pretty great stuff made with coconut cream. Lots of recipes here.

What kinds of dairy/cheese have the most/least amounts of lactose?

Description : What kinds of dairy/cheese have the most/least amounts of lactose?

Last Answer : Consider goat or sheep cheese--it doesn't cause a reaction in people who are lactose intolerant.

Does anyone make lactose-free cream?

Description : Does anyone make lactose-free cream?

Last Answer : Have you tried soy-based ice cream? It’s petty darn good.

Does ricotta contain lactose?

Description : Does ricotta contain lactose?

Last Answer : Yeah

Lactose Intolerance?

Description : Lactose Intolerance?

Last Answer : answer:I can't answer all of your questions, but I can answer some of them, based on nutrution and human physiology classes I've taken. LI can be linked to genetics, (for example full- ... . Basically you take the tablet right before eating, and it replaces the lactase your body was lacking.

What class of lactose sugars ?

Description : What class of lactose sugars ?

Last Answer : Lactose bile sugars.

Lactose Who No Sugars To say Is it

Last Answer : Lactose Who Dysacaride Sugars To say Is.

Travel with lactose sensitivity?

Description : How do you filter out so you don't have to go to the bathroom often and go home?

Last Answer : Either take lactase with you or make sure you don't eat lactose. Anyway, toileting is a natural thing.

Why wasn't so much lactose sensitive in the past?

Description : In the time of our grandparents, how was there no such problem?

Last Answer : There are two options. Either it was, they just didn’t know it was what the symptoms meant, or it wasn’t lasting milk that was full of all sorts of substances that made this problem for many.

What are the symptoms of lactose sensitivity on the skin?

Description : What are the symptoms of skin if someone is sensitive to lactose and yet eats lactose?

Last Answer : The primary symptoms of lactose intolerance are of gastrointestinal origin. Diarrhea and constipation can occur. Abdominal pain. Puffiness due to excessive gas formation. Nausea and vomiting. Other ... , runny nose. Difficult concentration, dizziness. Irregular heartbeat may occur. Severe headache. 

What makes a person have lactose intolerance?

Description : What makes a person have lactose intolerance?

Last Answer : Because of deficiency of lactase enzyme in small intestine so that lactose present in milk cant digest . Cause diarrhea indigestion cramp in stomach abdominal pain etc.

How do you know that you are Lactose intolerance?

Description : How do you know that you are Lactose intolerance?

Last Answer : After consuming a milk based product, you will feel like having a diarrhea 20 to 30 minutes after you drink it. First you will experience a gurgling sound on your stomach, then it will be painful as ... when you are in the street for sure. This is very common so reduce the intake of milk product.

Lactose is composed of

Description : Lactose is composed of

Last Answer : Lactose is composed of A. Glucose `+` galactose B. Glucose `+` fructose C. Glucose `+` glucose D. Glucose `+` mannose

In lac operon, lactose acts are

Description : In lac operon, lactose acts are

Last Answer : In lac operon, lactose acts are A. Inducer B. Co-inducer C. Repressor D. Co-repressor