JEE Mains · Chemistry · STD 12 - 10. Biomolecules
The number of possible tripeptides formed involving alanine (ala), glycine (gly) and valine (val), where no amino acid has been used more than once is :
- A 6
- B 3
- C 4
- D 8
Answer & Solution
Correct Answer
(A) 6
Step-by-step Solution
Detailed explanation
Gly ala val Gly val ala Val gly ala Val ala gly Ala val gly Ala gly val Total tri peptides = 6
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- When ' \(\mathrm{x}\) ' \(\times 10^{-2} \mathrm{~mL}\) methanol (molar mass \(=32 \mathrm{~g}\); density \(=0.792 \mathrm{~g} / \mathrm{cm}^3\) ) is added to \(100 \mathrm{~mL}\) water (density \(=1 \mathrm{~g} / \mathrm{cm}^3\) ), the following diagram is obtained. (Image) \(x=\) _______ (nearest integer) [Given: Molal freezing point depression constant of water at \(273.15 \mathrm{~K}^2\) is \(1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\) ]
JEE Mains 2024 Medium - The molality of a \(10 \%( v / v )\) solution of di-bromine solution in \(CCl _4\) (carbon tetrachloride) is \(x\). \(x=\) \(......\times 10^{-2}\,M\). (Nearest integer) [Given : molar mass of \(Br _2=160\,g\,mol ^{-1}\) atomic mass of \(C =12\,g\,mol ^{-1}\) atomic mass of \(Cl =35.5\,g\,mol ^{-1}\) density of dibromine \(=3.2\,g\,cm ^{-3}\) density of \(\left.CCl _4=1.6\,g\,cm ^{-3}\right]\)JEE Mains 2023 Hard
- Which of the glycosidic linkage between galactose and glucose is present in lactose ?JEE Mains 2021 Easy
- First and second ionization enthalpies of lithium are \(520\) kJ mol\(^{-1}\) and \(7297\) kJ mol\(^{-1}\) respectively. Energy required to convert \(3.5\) mg lithium (g) into \(\text{Li}^{2+}\)(g) \([\text{Li(g)} \rightarrow \text{Li}^{2+}\text{(g)}]\) is _______ kJ mol\(^{-1}\). (nearest integer) [Molar mass of Li \(= 7\) g mol\(^{-1}\)]JEE Mains 2026 Medium
- In the reaction of oxalate with permanganate in acidic medium, the number of electrons involved in producing one molecule of \(CO_2\) isJEE Mains 2019 Medium
- Some amount of dichloromethane \(\left( CH _2 Cl _2\right)\) is added to \(671.141\,mL\) of chloroform \(\left( CHCl _3\right)\) to prepare \(2.6 \times 10^{-3}\,M\) solution of \(CH _2 Cl _2( DCM )\). The concentration of \(DCM\) is \(.........ppm\) (by mass).Given: Atomic mass : \(C =12 ; H : 1 ; Cl =35.5\) density of \(CHCl _3=1.49\,g\,cm ^{-3}\)JEE Mains 2023 Hard
More PYQs from JEE Mains
- The total number of coordination sites in ethylenedi aminetetraacetate \((EDTA^ {4 -})\) isJEE Mains 2020 Medium
- A particle of charge \(16\times10^{-16}\, C\) moving with velocity \(10\, ms^{-1}\) along \(x-\) axis enters a region where magnetic field of induction \(\vec B\) is along the \(y-\) axis and an electric field of magnitude \(10^4\, Vm^{-1}\) is along the negative \(z-\) axis. If the charged particle continues moving along \(x-\) axis, the magnitude of \(\vec B\) isJEE Mains 2013 Medium
- Compound \(A\) used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound \(A\) isJEE Mains 2021 Easy
- The total number of lone pairs of electrons on oxygen atoms of ozone is \(...........\).JEE Mains 2023 Medium
- The amplitude of magnetic field in an electromagnetic wave propagating along \(y\)-axis is \(6.0 \times 10^{-7}\,T\). The maximum value of electric field in the electromagnetic wave is:JEE Mains 2023 Easy
- If the mean and variance of the frequency distribution
are \(9\) and \(15.08\) respectively, then the value of \(\alpha^2+\beta^2-\alpha \beta\) is \(............\).\(x_i\) \(2\) \(4\) \(6\) \(8\) \(10\) \(12\) \(14\) \(16\) \(f_i\) \(4\) \(4\) \(\alpha\) \(15\) \(8\) \(\beta\) \(4\) \(5\) JEE Mains 2023 Hard