Hinge region, the region of Ig molecule which is flexible and more exposed to enzymes is the (A) Region between first and second constant regions of H chain (domains CH1 and CH2) (B) Region between second and third constant regions of H chain (CH2 and CH3) (C) Variable regions of H chain (D) Variable regions of L chain

Hinge region, the region of Ig molecule which is flexible and more exposed to enzymes is the (A) Region between first and second constant regions of H chain (domains CH1 and CH2) (B) Region between second and third constant regions of H chain (CH2 and CH3) (C) Variable regions of H chain (D) Variable regions of L chain
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The portion of the immunoglobulin molecule that binds the specific antigen is formed by (A) Variable regions of H and L chains (B) Constant region of H chain (C) Constant region of L chain (D) Hinge region

Description : The portion of the immunoglobulin molecule that binds the specific antigen is formed by (A) Variable regions of H and L chains (B) Constant region of H chain (C) Constant region of L chain (D) Hinge region

Last Answer : Answer : A

The class specific function of the different immunoglobulin molecules is constituted by (A) Variable region of L chain (B) Constant region of H chain (C) Variable region of H chain (D) Constant region particularly CH2 and CH3 of H chain

Description : The class specific function of the different immunoglobulin molecules is constituted by (A) Variable region of L chain (B) Constant region of H chain (C) Variable region of H chain (D) Constant region particularly CH2 and CH3 of H chain

Last Answer : Answer : D

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.

Type ε H chain is present in (A) Ig A (B) Ig M (C) Ig D (D) Ig E

Description : Type ε H chain is present in (A) Ig A (B) Ig M (C) Ig D (D) Ig E

Last Answer : Answer : D

Type δ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : Type δ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : D

Type µ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : Type µ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : C

Type α H chain is present in (A) Ig E (B) Ig A (C) Ig M (D) Ig D

Description : Type α H chain is present in (A) Ig E (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : B

Type γ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : Type γ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : A

The effector function of antibody is performed by (A) Variable region of light chains (B) Constant region of heavy chains (C) Variable regions of light and heavy chains (D) Constant regions of light and heavy chains

Description : The effector function of antibody is performed by (A) Variable region of light chains (B) Constant region of heavy chains (C) Variable regions of light and heavy chains (D) Constant regions of light and heavy chains

Last Answer : Answer : D

Recognition of antigen is the function of (A) Variable region of light chains (B) Variable regions of light and heavy chains (C) Constant region of heavy chains (D) Constant regions of light and heavy chains

Description : Recognition of antigen is the function of (A) Variable region of light chains (B) Variable regions of light and heavy chains (C) Constant region of heavy chains (D) Constant regions of light and heavy chains

Last Answer : Answer : B

Identify type of the intermolecular forces in the following compounds. a. CH3 – OH  b. CH2 = CH2 c. CHCl3

Description : Identify type of the intermolecular forces in the following compounds. a. CH3 – OH  b. CH2 = CH2 c. CHCl3

Last Answer : Identify type of the intermolecular forces in the following compounds. a. CH3 – OH b. CH2 = CH2 c. CHCl3 d. CH2Cl2

What is the name for CH3-CHBr-CH2-CH3?

Description : What is the name for CH3-CHBr-CH2-CH3?

Last Answer : This compound is bromobutane.

What is the name for CH3-CHBr-CH2-CH3?

Description : What is the name for CH3-CHBr-CH2-CH3?

Last Answer : This compound is bromobutane.

Which of the following terms best describes the compound below? CH3(CH2)26CO2CH2(CH2)32CH3 (a) a fa(b) a wax (c) a terpene (d) an unsaturated triglyceridet

Description : Which of the following terms best describes the compound below? CH3(CH2)26CO2CH2(CH2)32CH3 (a) a fat (b) a wax (c) a terpene (d) an unsaturated triglyceride

Last Answer : a wax

Which of the following terms best describes the compound below? CH3(CH2)7CH=CH(CH2)7CO2H (a) an unsaturated fatty acid (b) a triglyceride (c) a synthetic detergent (d) a micelle

Description : Which of the following terms best describes the compound below? CH3(CH2)7CH=CH(CH2)7CO2H (a) an unsaturated fatty acid (b) a triglyceride (c) a synthetic detergent (d) a micelle

Last Answer : an unsaturated fatty acid

Which of the following terms best describes the compound below? CH3(CH2)12CO2H (a) a fatty acid (b) an oil (c) a wax (d) a soap

Description : Which of the following terms best describes the compound below? CH3(CH2)12CO2H (a) a fatty acid (b) an oil (c) a wax (d) a soap

Last Answer : a fatty acid

CH3(CH2)4 is the sodium salt of hexanoic acid. The water solubility of this salt is : (a) higher than that of hexanoic acid (b) lower than that of hexanoic acid (c) completely insoluble (d) not predictable

Description : CH3(CH2)4 is the sodium salt of hexanoic acid. The water solubility of this salt is : (a) higher than that of hexanoic acid (b) lower than that of hexanoic acid (c) completely insoluble (d) not predictable

Last Answer : higher than that of hexanoic acid

Which of the following compounds would react most rapidly in an SN2 reaction? (a) CH3CH2I (b) CH2=CH–I (c) (CH3)2CHI (d) (CH3)3CI

Description : Which of the following compounds would react most rapidly in an SN2 reaction? (a) CH3CH2I (b) CH2=CH–I (c) (CH3)2CHI (d) (CH3)3CI

Last Answer : CH3CH2I

Predict which of the following alkenes reacts the fastest with HCl? (a) CH3CH2CH2CH2CH=CH2 (b) cis-CH3CH2CH=CHCH2CH3 (c) trans-CH3CH2CH=CHCH2CH3 (d) (CH3)2C=CHCH2CH3

Description : Predict which of the following alkenes reacts the fastest with HCl? (a) CH3CH2CH2CH2CH=CH2 (b) cis-CH3CH2CH=CHCH2CH3 (c) trans-CH3CH2CH=CHCH2CH3 (d) (CH3)2C=CHCH2CH3

Last Answer : (CH3)2C=CHCH2CH3

Which of the following compounds will react most readily with bromine in CCl4? (a) CH3CH2CH3 (b) (CH3)3CH (c) CH3CH=CH2 (d) (CH3)4C

Description : Which of the following compounds will react most readily with bromine in CCl4? (a) CH3CH2CH3 (b) (CH3)3CH (c) CH3CH=CH2 (d) (CH3)4C

Last Answer : CH3CH=CH2

Which of the following compounds show geometrical isomerism (a) (CH3)3N (b) CH3CH=CH2 (c) (CH3)2NH (d) CH3CH=CHCH

Description : Which of the following compounds show geometrical isomerism (a) (CH3)3N (b) CH3CH=CH2 (c) (CH3)2NH (d) CH3CH=CHCH

Last Answer : CH3CH=CHCH

The variable region of heavy chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

Description : The variable region of heavy chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

Last Answer : Answer : D

The variable region of light chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

Description : The variable region of light chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

Last Answer : Answer : C

For a database relation R(A,B,C,D) where the domains of A,B,C and D include only atomic values, only the following functional dependencies and those that can be inferred from them are: A→C B→D The relation R is in ................ (1) First normal form but not in second normal form (2) Both in first normal form as well as in second normal form (3) Second normal form but not in third normal form (4) Both in second normal form as well as in third normal form

Description : For a database relation R(A,B,C,D) where the domains of A,B,C and D include only atomic values, only the following functional dependencies and those that can be inferred from them are: A→C B→D The ... form but not in third normal form (4) Both in second normal form as well as in third normal form

Last Answer : First normal form but not in second normal form

A secretory protein T chain (T protein) is present in (A) Ig A (B) Ig M (C) Ig D (D) Ig E

Description : A secretory protein T chain (T protein) is present in (A) Ig A (B) Ig M (C) Ig D (D) Ig E

Last Answer : Answer : A

A ‘J’ chain is present in (A) Ig D (B) Ig M (C) Ig G (D) Ig E

Description : A ‘J’ chain is present in (A) Ig D (B) Ig M (C) Ig G (D) Ig E

Last Answer : Answer : B

The portion of the antigen molecule which is recognized by antibody is known as (A) Hapten (B) Epitope (C) Complement (D) Variable region

Description : The portion of the antigen molecule which is recognized by antibody is known as (A) Hapten (B) Epitope (C) Complement (D) Variable region

Last Answer : Answer : B

The variable region of light chain is the (A) N-terminal quarter (B) N-terminal half (C) C-terminal quarter (D) C-terminal half

Description : The variable region of light chain is the (A) N-terminal quarter (B) N-terminal half (C) C-terminal quarter (D) C-terminal half

Last Answer : Answer : A

The number of hypervariable region in H chain is (A) 1 (B) 2 (C) 3 (D) 4

Description : The number of hypervariable region in H chain is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : Answer : D

The number of hypervariable region in L chain is (A) 1 (B) 2 (C) 3 (D) 4

Description : The number of hypervariable region in L chain is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : Answer : C

A light chain gene is constructed from the following segments: (A) Variable and constant segments (B) Variable, joining and constant segments (C) Variable, diversity and constant segments (D) Variable, joining, diversity and constant segments

Description : A light chain gene is constructed from the following segments: (A) Variable and constant segments (B) Variable, joining and constant segments (C) Variable, diversity and constant segments (D) Variable, joining, diversity and constant segments

Last Answer : Answer : B

Which molecule is more likely to exist in nature a molecule of CH3 or a molecule of CH4 Explain?

Description : Which molecule is more likely to exist in nature a molecule of CH3 or a molecule of CH4 Explain?

Last Answer : The molecule of methane is more stable, carbon is tetravalent.

The active site of an enzyme is formed by a few of the enzymes: (A) R groups of the amino acids (B) Amino groups of the amino acids (C) Carboxyl group of the amino acids (D) Exposed sulfur bonds

Description : The active site of an enzyme is formed by a few of the enzymes: (A) R groups of the amino acids (B) Amino groups of the amino acids (C) Carboxyl group of the amino acids (D) Exposed sulfur bonds

Last Answer : Answer : C

Point group D3h belong to the molecule a. BF3 b. NH3 c. CHCl3 d. CH3

Description : Point group D3h belong to the molecule a. BF3 b. NH3 c. CHCl3 d. CH3

Last Answer : a. BF3

Select the correct matching of the type of the joint with the example in human skeletal system. Type of joint Example (a) Cartilaginous – Between frontal and joint parietal (b) Pivot joint – Between third and fourth cervical vertebrae (c) Hinge joint – Between humerus and pectoral girdle (d) Gliding joint – Between carpals

Description : Select the correct matching of the type of the joint with the example in human skeletal system. Type of joint Example (a) Cartilaginous - Between frontal and joint parietal (b) Pivot joint - ... vertebrae (c) Hinge joint - Between humerus and pectoral girdle (d) Gliding joint - Between carpals

Last Answer : (d) Gliding joint – Between carpals

In a three hinged arch, the third hinge is generally kept at (A) Crown of the arch (B) Midpoint of the crown and left support hinge (C) Midpoint of the crown and right support hinge (D) None of these

Description : In a three hinged arch, the third hinge is generally kept at  (A) Crown of the arch  (B) Midpoint of the crown and left support hinge  (C) Midpoint of the crown and right support hinge  (D) None of these 

Last Answer : (A) Crown of the arch

In the reaction of CH3CH2CH=CH2 with HCl, the H of the HCl will become attached to which carbon? (a) C-1(b) C-2(c) C-3(d) C-4

Description : In the reaction of CH3CH2CH=CH2 with HCl, the H of the HCl will become attached to which carbon? (a) C-1 (b) C-2 (c) C-3 (d) C-4

Last Answer : C-1

In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is (A) L/2 (B) L/3 (C) L/4 (D) L/5

Description : In case of a simply supported rectangular beam of span L and loaded with a central load W, the  length of elasto-plastic zone of the plastic hinge, is  (A) L/2  (B) L/3  (C) L/4  (D) L/5 

Last Answer : (B) L/3 

In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is (A) L/2 (B) L/3 (C) L/4 (D) L/5

Description : In case of a simply supported I-section beam of span L and loaded with a central load W, the  length of elasto-plastic zone of the plastic hinge, is  (A) L/2  (B) L/3  (C) L/4  (D) L/5 

Last Answer : (D) L/5 

Acetamide is a much weaker base than ammonia. This is because (a) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation. (b) ) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom more available for protonation. (c) the presence of CH3 group sterically hinders the protonation of the NH2 group. (d) an H atom from the nitrogen is less easily lost from CH3CONH2 than from NH3.

Description : Acetamide is a much weaker base than ammonia. This is because (a) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation. (b) ) ... NH2 group. (d) an H atom from the nitrogen is less easily lost from CH3CONH2 than from NH3.

Last Answer : the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation

What orbitals overlap to create the H–C bond in CH3+? (a) sp3–sp3 (b) sp2–sp3 (c) s–p (d) s–sp2

Description : What orbitals overlap to create the H–C bond in CH3+? (a) sp3–sp3 (b) sp2–sp3 (c) s–p (d) s–sp2

Last Answer : s–sp2

From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask. (a) CH4, H2, NH3 and water vapor at 800°C (b) CH3, H2, NH4 and water vapor at 800°C (c) CH4, H2, NH3 and water vapor at 600°C (d) CH3, H2, NH3 and water vapor at 600°C

Description : From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask. (a) CH4, H2, NH3 and water vapor at 800°C (b) CH3, H2, NH4 and water vapor at 800°C (c) CH4, H2, NH3 and water vapor at 600°C (d) CH3, H2, NH3 and water vapor at 600°C

Last Answer : a) CH4, H2, NH3 and water vapor at 800°C

The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface) (A) (IG/ ) - (B) (IG/ ) - (C) ( /IG) + (D) (IG/ ) +

Description : The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, ... (IG/ ) - (B) (IG/ ) - (C) ( /IG) + (D) (IG/ ) +

Last Answer : Answer: Option D

Variable regions are present in (A) Immunoglobulins (B) α-Chains of T cell receptors (C) β-Chains of T cell receptors (D) All of these

Description : Variable regions are present in (A) Immunoglobulins (B) α-Chains of T cell receptors (C) β-Chains of T cell receptors (D) All of these

Last Answer : Answer : D

If is the difference in height between end points of a chain of length , the required slope correction is (A) h²/2l (B) h/2l (C) h²/l (D) 2h²/2l

Description : If is the difference in height between end points of a chain of length , the required slope correction is (A) h²/2l (B) h/2l (C) h²/l (D) 2h²/2l

Last Answer : (A) h²/2l

A culture can be divided into subcultures according to A)personality characteristics. B)the motives that people have for their behaviour. C)geographic regions or human characteristics, such as age or ethnic background. D)geographic regions and income levels. E)the information to which consumers allow themselves to be exposed.

Description : A culture can be divided into subcultures according to A)personality characteristics. B)the motives that people have for their behaviour. C)geographic regions or human characteristics, such as age ... regions and income levels. E)the information to which consumers allow themselves to be exposed.

Last Answer : C)geographic regions or human characteristics, such as age or ethnic background

After termination of the synthesis of RNA molecule, the core enzymes separate from the DNA template. The core enzymes then recognize a promoter at which the synthesis of a new RNA molecule commences, with the assistance of (A) Rho (ρ) factor (B) δ factor (C) β factor (D) σ factor

Description : After termination of the synthesis of RNA molecule, the core enzymes separate from the DNA template. The core enzymes then recognize a promoter at which the synthesis of a new RNA molecule commences, with the assistance of (A) Rho (ρ) factor (B) δ factor (C) β factor (D) σ factor

Last Answer : Answer : D

The compound having the formula H2N—CO—NH—CH2—CH2—CH2—CH— COOH is | NH2 (A) Lysine (B) Glutamine (C) Serine (D) Citrulline

Description : The compound having the formula H2N—CO—NH—CH2—CH2—CH2—CH— COOH is | NH2 (A) Lysine (B) Glutamine (C) Serine (D) Citrulline

Last Answer : Answer : D

Cysteine has the formula: (A) CH3SH (B) H2N—CH2—COOH (C) HS—CH2—CH(NH2)—COOH (D) S—CH2—CH(NH2)—COOH | S—CH2—CH(NH2)—COOH

Description : Cysteine has the formula: (A) CH3SH (B) H2N—CH2—COOH (C) HS—CH2—CH(NH2)—COOH (D) S—CH2—CH(NH2)—COOH | S—CH2—CH(NH2)—COOH

Last Answer : Answer : C

A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is (A) WL/P (B) WL/2P (C) WL/3P (D) WL/4P

Description : A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is (A) WL/P (B) WL/2P (C) WL/3P (D) WL/4P

Last Answer : Answer: Option C