Questions

SECTION - A [BOTANY - MCQ]

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45 questions · 40 auto-graded MCQ + 5 self-marked written.

MCQ 14 Marks
Choose the mismatched pair of leaf character with its example :
  • Palmately compound – Alstonia
  • B
    Alternate Phyllotaxy – Chinarose
  • C
    Leaf tendril – Pea
  • D
    Opposite phyllotaxy – Calotropis
Answer
Correct option: A.
Palmately compound – Alstonia
(A) Palmately compound – Alstonia
(1) Palmately compound - Silk Cotton
(2) Alternate Phyllotaxy - Chinarose
(3) Leaf tentdril - Pea
(4) Opposite phyllotaxy - Calotropis
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MCQ 24 Marks
Which of the following is not a character of collenchyma tissue? :
  • A
    They provide mechanical support to the growing part of the plant
  • B
    They occur in layers below epidermis in dicotyledonous plants
  • C
    They consist of cells with thick corners due to cellulose deposition
  • They are usually dead and without protoplasts
Answer
Correct option: D.
They are usually dead and without protoplasts
(D) They are usually dead and without protoplasts
The character of collenchyma tissue? :
(1) They provide mechanical support to the growing part of the plant
(2) They occur in layers below epidermis in dicotyledonous plants
(3) They consist of cells with thick corners due to cellulose deposition
(4) They are living tissue
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MCQ 34 Marks
Axillary buds are derived from the activity of :
  • A
    Lateral meristem
  • B
    Secondary meristem
  • Apical meristem
  • D
    bracket Fungi
Answer
Correct option: C.
Apical meristem
(C) Apical meristem
Axillary buds are derived from the activity of Apical meristem
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MCQ 44 Marks
Which one of the following is not a criterion of genetic material :
  • Should not provide the scope for changes for evolution
  • B
    Should be able to express itself in the form of Mendelian character
  • C
    Should be able to generate its replica
  • D
    Should be stable chemically and structurally
Answer
Correct option: A.
Should not provide the scope for changes for evolution
(A) Should not provide the scope for changes for evolution
The criterion of genetic material :
(1) Should provide the scope for changes for evolution
(2) Should be able to express itself in the form of Mendelian character
(3) Should be able to generate its replica
(4) Should be stable chemically and structurally
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MCQ 54 Marks
Which one of the following experiments of Frederick Griffith resulted in the discovery of bacterial transformation :
  • A
    S-strain(heat-killed) $\rightarrow$ injected into Mice $\rightarrow$ Mice lived
  • S-strain (heat killed) + R-strain(live) $\rightarrow$ injected into Mice $\rightarrow$ Mice died
  • C
    S-stain $\rightarrow$ injected into Mice $\rightarrow$ Mice died
  • D
    R-strain $\rightarrow$ injected into Mice $\rightarrow$ Mice lived
Answer
Correct option: B.
S-strain (heat killed) + R-strain(live) $\rightarrow$ injected into Mice $\rightarrow$ Mice died
B
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Question 64 Marks
Answer
(A)
(a) Haemophilia(ii) Sex-linked recessive disorder defect in blood coagulation
(b) Down's Syndrome(iv) Additional copy of chromosome number 21
(c) Phenylketonuria(i) Inborn error of metabolism which lacks an enzyme that converts phenylalanine into tyrosine
(d) Klinefelter's Syndrome(iii) Presence of additional copy of X chromosome (44+XXY)
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MCQ 74 Marks
Assuming that fur colour of an animal is dark, range of colour shade and white. A cross is made between a male (AABBCC) with dark fur colour and a female (aabbcc) with white fur colour. What would be the fur colour of $F _1$ generation?
  • All intermediate colour
  • B
    Range of colour shade
  • C
    All dark colour
  • D
    All white colour
Answer
Correct option: A.
All intermediate colour
A
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MCQ 84 Marks
Select the correct statements with respect to pleiotropism
(a) A gene is said to be pleiotropy if it affects more than one trait
(b) Phenylketonuria is an example of pleiotropy
(c) A condition where one gene has several alleles is referred to as pleiotropism
(d) A trait is said to be pleiotropic if several genes control it
Choose the correct answer from the options given below:
  • (a) and (b) only
  • B
    (a) and (d) only
  • C
    (a), (b) and (c) only
  • D
    (b) ,(c) and (d) only
Answer
Correct option: A.
(a) and (b) only
(A) (a) and (b) only
the correct statements with respect to pleiotropism
(a) A gene is said to be pleiotropy if it affects more than one trait
(b) Phenylketonuria is an example of pleiotropy
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MCQ 94 Marks
In Drosophila, the genes for colour of body and colour of eyes are situated on _______ :
  • A
    both the sex chromosomes
  • B
    autosome chromosomes
  • C
    Y-chromosome
  • X-chromosome
Answer
Correct option: D.
X-chromosome
(D)
X-chromosome
In Drosophila, the genes for colour of body and colour of eyes are situated on X-chromosome
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MCQ 104 Marks
The hormone releasing IUDs among the following are:
(a) Multiload 375
(b) LNG-20
(c) Progestasert
(d) Lippe's loop
(e) Vaults
Choose the most appropriate answer from the options given below :
  • A
    (a) and (d) only
  • B
    (c) and (e) only
  • C
    (a) and (b) only
  • (b) and (c) only
Answer
Correct option: D.
(b) and (c) only
(D) (b) and (c) only
The hormone releasing IUDs
(b) LNG - 20
(c) Progestasert
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MCQ 114 Marks
Which of the following come under the "EvilQuartet :
(a) Habitat loss and fragmentation
(b) Over-exploitation
(c) Alien species invasion
(d) Mortality
(e) Competition
Choose the correct answer from the options given below:
  • A
    (a), (c) and (d)
  • B
    (b) , (c) and (d)
  • (a), (b) and (c)
  • D
    (a) , (d) and (e)
Answer
Correct option: C.
(a), (b) and (c)
(C) (a), (b) and (c)
the following come under the "EvilQuarter :
Habitat loss and fragmentation
Over-exploitation
Alien species invasion
Co-extinction
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MCQ 124 Marks
Species Area relationship is described by the following equation. log S = log C + Z log A where Z is: :
  • A
    Area
  • B
    Species richness
  • Slope of the line
  • D
    Y-intercept
Answer
Correct option: C.
Slope of the line
(C) Slope of the line
Species Area relationship is described by the following equation.
log S = log C + Z log A where Z is Slope of the line
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MCQ 134 Marks
Which of the following set represents the correct labelling of A,B, C and D with respect to the given diagram :
Image
  • A- Seed Coat, B- Endosperm, C- Cotyledon, D -Hypocotyl
  • B
    A -Seed Coat, B- Scutellum, C- Endocarp, D -Mesocarp
  • C
    A- Seed Coat, B- Scutellum, C- Micropyle, D -Endocarp
  • D
    A-Pericarp, B - Coleoptile
Answer
Correct option: A.
A- Seed Coat, B- Endosperm, C- Cotyledon, D -Hypocotyl
A
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MCQ 144 Marks
Identify the correct set of statements with regard to properties of humus
(a) Highly resistant to microbial action
(b) Dark-colored amorphous substance
(c) End product of detritus food chain
(d) Reservoir of nutrients
(e) Undergoes decomposition very fast
Choose the correct answer from the options given below :
  • (a), (b) and (d) only
  • B
    (a),(b) and (e) only
  • C
    (a) and (b) only
  • D
    (b) , (c) and (a)
Answer
Correct option: A.
(a), (b) and (d) only
(A) (a), (b) and (d) only
The statements with regard to properties of humus
(a) Highly resistant to microbial action
(b) Dark-colored amorphous substance
(d) Reservoir of nutrients
(e) Undergoes decomposition very slow
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MCQ 154 Marks
Which of the following is the correct equation of exponential growth? :
  • A
    $N _{ t }= N _0 e ^{ mtt }$
  • B
    $N _{ t }= N _0 e ^{ rpt }$
  • C
    $N _{ t }= N _0 e ^{ rst }$
  • $N_t=N_0 e^{t t}$
Answer
Correct option: D.
$N_t=N_0 e^{t t}$
(D) $N_t=N_0 e^{t t}$
the correct equation of exponential growth
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MCQ 164 Marks
The process of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration is referred as::
  • A
    Association
  • B
    Emigration
  • C
    Competition
  • Immigration
Answer
Correct option: D.
Immigration
(D) Immigration
The process of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration is referred as Immigration
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MCQ 174 Marks
Genetically engineered insulin for human is produced from :
  • Escherichia coli
  • B
    Pseudomonas putida
  • C
    Bacillus thuringiensis
  • D
    Rhizobium meliloti
Answer
Correct option: A.
Escherichia coli
(A) Escherichia coli
Genetically engineered insulin for human is produced from Escherichia coli
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MCQ 184 Marks
What will be the ploidy of endosperm of a seed produced after crossing tetraploid female plant with tetraploid male plant :
  • A
    Pentaploid
  • Hexaploid
  • C
    Diploid
  • D
    Triploid
Answer
Correct option: B.
Hexaploid
(B) Hexaploid
Hexaploid is the ploidy of endosperm of a seed produced after crossing tetraploid female plant with tetraploid male plant
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MCQ 194 Marks
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R) .
Assertion(A) : In rDNA technology non-recombinants transformed bacteria grow on the medium containing ampicillin as well as medium containing tetracycline
Reason (R): Recombinant plasmids does not contain the foreign gene of interest.
  • (A) is correct but (R) is not correct
  • B
    (A) is not correct but (R) is correct
  • C
    Both (A) and (R) are correct and (R) is the correct explanation of (A)
  • D
    Both (A) and (R) are correct but (R) is not the correct explanation of (A)
Answer
Correct option: A.
(A) is correct but (R) is not correct
A
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MCQ 204 Marks
The construction of the first recombinant emerged from the possibility of linking a gene encoding antibiotic resistance with a native plasmid of which of the following organism?:
  • A
    Escherichia coli
  • B
    Bacillus thuringiensis
  • Salmonella typhimurium
  • D
    Agrobacterium tumefaciens
Answer
Correct option: C.
Salmonella typhimurium
(C) Salmonella typhimurium
The construction of the first recombinant emerged from the possibility of linking a gene encoding antibiotic resistance with a native plasmid of Salmonella typhimurium
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MCQ 224 Marks
Select the correct match
(A) Haemophilus influenzaeI. Bacteria
(B) Plasmodium falciparumII. Protozoa
(C) Wuchereria bancroftiIII. Aschelminthese
(D) HIVIV. Virus
  • A
    A-IV, B-III, C-II, D-I
  • B
    A-III, B-II, C-IV, D-I
  • A-I, B-II, C-III, D-IV
  • D
    A-IV, B-I, C-II, D-III
Answer
Correct option: C.
A-I, B-II, C-III, D-IV
(C) A-I, B-II, C-III, D-IV
(A) Haemophilus influenzaeI. Bacteria
(B) Plasmodium falciparumII. Protozoa
(C) Wuchereria bancroftiIII. Aschelminthese
(D) HIVIV. Virus
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MCQ 234 Marks
Which of the following statements about facilitated diffusion is incorrect :
  • A
    Special proteins of the membrane help in this process
  • B
    Movement of molecule are the occurs along the concentration gradient
  • Movement of molecule are the occurs against the concentration gradient
  • D
    ATP is not required for this process
Answer
Correct option: C.
Movement of molecule are the occurs against the concentration gradient
(C) Movement of molecule are the occurs against the concentration gradient
The statements about facilitated diffusion is incorrect
(1) Special proteins of the membrane help in this process
(2) Movement of molecule the occurs along the concentration gradient
(4) ATP is not required for this process
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MCQ 244 Marks
Which of the following plants possess the placentation of ovules borne on central axis with no septa :
  • A
    Lemon
  • B
    Pea
  • C
    China rose
  • Primrose
Answer
Correct option: D.
Primrose
(D) Primrose
Primrose– plants possess the placentation of ovules borne on central axis with no septa
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MCQ 254 Marks
Identify the correct statements related to the androecium in the flower
a. The sterile stamens are called staminodes
b. When stamens are attached to petals they are called epipetalous
c. Monoadelphous is seen in China-rose
d. Polyadelphous is seen in Pea
e. Variation in the length of filaments is seen in Mustard
Choose the correct answer from the options given below:
  • A
    (a), (c), (d) and (e) only
  • (a) , (b), (c) and (e) only
  • C
    (a) , (b) and (c) only
  • D
    (b) , (c) and (d) only
Answer
Correct option: B.
(a) , (b), (c) and (e) only
(B) (a) , (b), (c) and (e) only
The correct statements related to the androecium in the flower
a. The sterile stamens are called staminodes
b. When stamens are attached to petals they are called epipetalous
c. Monoadelphous is seen in China-rosed.
d. Didelphous is seen in Pea
e. Variation in the length of filaments is seen in Mustard
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Question 264 Marks
Match List -I with List-II :
List - IList - II
a. Cedrus(i) Pteridophyte
b. Adiantum(ii) Gymnosperm
c. Sphagnum(iii) Liverwort
d. Marchantia(iv) Moss
Choose the correct answer from the options given below:
Image
Answer
(C)
a. Cedrus(ii) Gymnosperm
b. Adiantum(i) Pteridophyte
c. Sphagnum(iv) Moss
d. Marchantia(iii) Liverwort
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MCQ 274 Marks
Which one of the following structures is haploid in its ploidy level :
  • A
    Zygote
  • B
    Microspore Mother cell
  • Protonemal cell of a moss
  • D
    Primary endosperm nucleus in dicot
Answer
Correct option: C.
Protonemal cell of a moss
(C) Protonemal cell of a moss
Protonemal cell of a moss – Gametophyte or haploid
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MCQ 284 Marks
The cerebral cortex contains
  • A
    Sensory area
  • B
    Motor area
  • C
    Association area
  • All
Answer
Correct option: D.
All
(D) All
The cerebral cortex contains
(1) Sensory area
(2) Motor area
(3) Association area
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MCQ 294 Marks
Select the correct option for nervous system of hydra
  • A
    Well developed fore brain
  • B
    Well developed hind brain
  • Composed of network of neurons
  • D
    Corpus callosum
Answer
Correct option: C.
Composed of network of neurons
(C) Composed of network of neurons
Composed of network of neurons – nervous system of hydra
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MCQ 304 Marks
Given below are two statements
Statement I: Joints are points of contact between bones or between bones and cartilages.
Statement II : Force generated by the muscles is used to carry out movement through joints, where the joint act as a fulcrum.
Choose the correct answer from the option given below:
  • A
    Both Statement I and Statement II are incorrect
  • B
    Statement I is correct but Statement II is incorrect
  • C
    Statement I is incorrect but Statement II is correct
  • Both Statement I and Statement II are correct
Answer
Correct option: D.
Both Statement I and Statement II are correct
(D) Both Statement I and Statement II are correct
Statement I: Joints are points of contact between bones or between bones and cartilages.
Statement II : Force generated by the muscles is used to carry out movement through joints, where the joint act as a fulcrum.
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MCQ 324 Marks
Which of the following disorders represents decrease in respiratory surface due to damaged alveolar walls :
  • A
    Hypocapnia
  • B
    Bronchitis
  • C
    Asthma
  • Emphysema
Answer
Correct option: D.
Emphysema
(D) Emphysema
Emphysema– disorders represents decrease in respiratory surface due to damaged alveolar walls
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MCQ 334 Marks
Removal of apical dominance by decapitation is utilised for:
  • A
    Suppressing the activity of intercalary meristem
  • B
    Early senescence
  • Hedge making
  • D
    Preparing weed-free lawns
Answer
Correct option: C.
Hedge making
(C) Hedge making
Removal of apical dominance by decapitation is utilised for Hedge making
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MCQ 344 Marks
The living differentiated cells, that lost the capacity to divide any more, can regain the capacity of division under certain conditions. This Phenomenon is termed as :
  • A
    Redifferentiation
  • B
    Maturation
  • C
    Differentiation
  • Dedifferentiation
Answer
Correct option: D.
Dedifferentiation
(D) Dedifferentiation
The living differentiated cells, that lost the capacity to divide any more, can regain the capacity of division under certain conditions. This Phenomenon is termed as Dedifferentiation
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MCQ 354 Marks
Identify the fungi which do not belong to the group of other fungi among the following :
  • Sac-fungi
  • B
    Puffballs
  • C
    Mushrooms
  • D
    Bracket Fungi
Answer
Correct option: A.
Sac-fungi
(A) Sac-fungi
Sac-fungi – Ascomycetes Puffballs, Mushrooms, Bracket Fungi -Basidiomycetes
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MCQ 364 Marks
Identify the cytochrome which acts as a mobile carrier for the transfer of electrons between complex III and IV :
  • A
    Cytochrome a
  • B
    Cytochrome $a_3$
  • C
    Cytochrome bc1
  • Cytochrome c
Answer
Correct option: D.
Cytochrome c
(D) Cytochrome c
Cytochrome c – the cytochrome which acts as a mobile carrier for the transfer of electrons between complex III and IV
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Question 374 Marks
Match List-I with List II:
List-IList-II
(a) ETS complex-I(i) $Cyt bc _1$
(b) ETS complex-II(ii) Cyt a, a ${ }_3$ and 2 copper centres
(c) ETS complex III(iii) NADH dehydrogenase
(d) ETS complex-IV(iv) Ubiquinone and $FADH _2$
Choose the correct answer from the options given below:
Image
Answer
(D)
(a) ETS complex-I(iii) NADH dehydrogenase
(b) ETS complex-II(iv) Ubiquinone and FADH dehydrogenase
(c) ETS complex III(i) $Cyt bc _1$
(d) ETS complex-IV(iii) $Cyt a , a _3$ and 2 copper centres
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MCQ 384 Marks
Following crops have been extensively cultivated in $CO _2$ rich atmosphere for higher yield: :
  • A
    Sugar beet and Cabbage
  • B
    Carrots and Tomatoes
  • C
    Wheat and Sugar beet
  • Tomatoes and Bell pepper
Answer
Correct option: D.
Tomatoes and Bell pepper
(D) Tomatoes and Bell pepper
Tomatoes and Bell pepper - crops have been extensively cultivated in $CO _2$ rich atmosphere for higher yield
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MCQ 394 Marks
The ratio of carbon dioxide fixation between $C _4$ plants and $C _3$ plants is :
  • $2: 1$
  • B
    $2: 3$
  • C
    $1: 1$
  • D
    $1: 2$
Answer
Correct option: A.
$2: 1$
(A) $2: 1$
The ratio of carbon dioxide fixation between $C _4$ plants and $C _3$ plants is $-2: 1$
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MCQ 404 Marks
The products of light reaction in photosynthesis are :
  • ATP, NADPH and $O _2$
  • B
    ATP, NADPH, $O _2$ and $H _2 O$
  • C
    ATP, NADPH , and $H _2 O$
  • D
    ATP, NADPH, and $CO _2$
Answer
Correct option: A.
ATP, NADPH and $O _2$
(A) ATP, NADPH and $O _2$
The products of light reaction in photosynthesis are :a.ATP, NADPH and $O _2$
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MCQ 414 Marks
In prophase I of Meiosis, chromosomes start pairing together and synapsis takes place. This process occurs during which of the following stage:
  • A
    Pachytene
  • B
    Diplotene
  • C
    Leptotene
  • Zygotene
Answer
Correct option: D.
Zygotene
(D) Zygotene
Zygotene – In prophase I of Meiosis, chromosomes start pairing together and synapsis takes place.
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MCQ 424 Marks
Given below are two statements : One is labelled asAssertion (A) and the other is labelled as Reason (R)
Assertion (A): The growth of multicellular organism is due to mitosis
Reason (R) Mitosis is also called as reductional division and it offers genetic stability
In the light of the above statements choose the correct answer from the options given below :
  • (A) is correct but (R) is not correct
  • B
    (A) is not correct but (R) is correct
  • C
    Both (A) and (R) are correct and (R) is the correct explanation of (A)
  • D
    Both (A) and (R) are correct and (R) is not the correct explanation of (A)
Answer
Correct option: A.
(A) is correct but (R) is not correct
A
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MCQ 434 Marks
Given below are two statements:
Statements-I: Cellulose is a polymeric polysaccharide
Statement-II : The building blocks of cellulose are glucose molecules.
In the light of the above statements , choose the correctanswer from the options given below:
  • A
    Statements-I is correct but statements-II is incorrect
  • B
    Statements-I is incorrect but statements-II is correct
  • Both statements-I and statements-II are correct
  • D
    Both statements-I and Statements -II incorrect
Answer
Correct option: C.
Both statements-I and statements-II are correct
(C) Both statements-I and statements-II are correct
Statements-I: Cellulose is a polymeric polysaccharide
Statement-II : The building blocks of cellulose are glucose molecules.
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MCQ 444 Marks
Which of the following bond is formed as a result of reaction of carboxyl group of one amino acid with amino group of other amino acid with elimination of water :
  • A
    Phosphodiester Bond
  • B
    Hydrogen Bond
  • C
    Glycosidic Bond
  • Peptide Bond
Answer
Correct option: D.
Peptide Bond
(D) Peptide Bond
Peptide Bond– formed as a result of reaction of carboxyl group of one amino acid with amino group of other amino acid with elimination of water
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MCQ 454 Marks
Select the correct match
A. Lemon gross oilsI.Polymericsubstance
B. RubberII. Terpenoids
C. DiterpeneIII. Essential oils
D. CarotenoidsIV. Drugs
  • A-III, B-I, C-II, D-IV
  • B
    A-I, B-II, C-III, D-IV
  • C
    A-IV, B-II, C-III, D-I
  • D
    A-II, B-III, C-I, D-IV
Answer
Correct option: A.
A-III, B-I, C-II, D-IV
(A) A-III, B-I, C-II, D-IV
A. Lemon gross oilsIII. Essential oils
B. RubberI. Polymeric substance
C. DiterpeneII. Terpenoids
D. CarotenoidsIV. Drugs
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