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Consider the following statements regarding genetic code and choose the correct answer:
1. The genetic code is degenerate
2. In all amino acids the first two bases are the same in all the codons that represent a particular amino acid
3. The number of codons an amino acid can claim is proportional to the frequency of the amino acid in proteins
4. Amino acids with codons ending in U or A also have codons ending in C or G respectively
In a batch process, the reaction takes place in the presence of an acid medium. The acid is drained from the reaction vessel at the rate of 15ml/s as a result of the density difference of the acid from the reacting component. To avoid wastage of acid, it is recycled to an acid tank which has 1000 L capacity. The acid drained from the reaction vessel, picks up 50 g/L solids from the reactor. Acid is fed once again to the process from acid tank. When the process is started, the acid is almost pure in the tank as a result of filtration. As the reaction proceeds, acid in the tank gets more and more contaminated with the solids. The concentration of the solids should not exceed 100 g/L from the process point of view. The batch time is 16h. Estimate whether the concentration of the solids will exceed 100g/L during the batch reaction.
Analysis of a hexapeptide using enzymatic cleavage reveals the following result:
• Amino acid composition of the peptide is: 2R, A, V, S, Y
• Trypsin digestion yields two fragments and the compositions are: (R, A, V) and (R, S, Y)
• Chymotrypsin digestion yields two fragments and the compositions are: (A, R, V, Y) and (R, S)
• Digestion with carboxypeptidase A yields no cleavage product.
Given: Trypsin cleaves at carboxyl side of R. Chymotrypsin cleaves at carboxyl side of Y. Carboxypeptidase A cleaves at amino side of the C-terminal amino acid (except R and K) of the peptide.
The correct amino acid sequence of the peptide is:
PROTPARS counts the minimum number of mutations to change a codon for the first amino acid into a codon for the second amino acid, but only scores those mutations in the mutational path that actually change the amino acid.
How is the rate of transpiration affected by decreasing humidity and by decreasing light intensity?   Decreasing humidity  Decreasing light intensity   (a).  Decreases Decreases  (b). Increases Decreases  (c). Increases Increases  (d). Decreases Increases
SN1 reaction undergoes through a carbocation intermediate as follows: (X = Cl, Br, I) The correct statements are: I. The decreasing order of rate of SN1reaction is t-BuX > iso-PrX > EtX > MeX II. The decreasing order of ionization energy is MeX > EtX > iso-PrX > t-BuX III. The decreasing order of energy of activation is t-BuX > iso-PrX > EtX > MeX
Phytase, an enzyme produced by Aspergillus niger can be adsorbed on microcrystalline cellulose powder (MCCP). The adsorption follows a Langmuir isotherm and the maximum concentration of the protein that can be obtained on the adsorbent is 70 mg cm-1. At a concentration of 50 mg L-1 of protein in the solution, the concentration of protein on the adsorbent reaches 35 mg cm-1. It is desired to recover 90% of the protein from 1.5 liter of the cell free culture filtrate containing 220 mg L-1 protein by addition of MCCP to the solution. The concentration of the protein adsorbed on the solid at equilibrium will be:
In protein/domain analysis, each protein in the predicted proteome is again used as a query of a curated protein sequence database such as ____ in order to locate similar domains and sequences. To find orthologs, very low E value scores (E<10<20) for the alignment score and an alignment that includes 60–80% of the query sequence are generally required in order to avoid matches to paralogs.
Consider the series - "animal, mammal, feline, tiger". Which of the following statement/s is/are true with reference to this series  (A) It is in order of increasing intension  (B) It is in order of increasing extension  (C) It is in order of decreasing intension  (D) It is in order of decreasing extension  Choose the correct answer from the options given below : 
Consider the series "tiger, feline, mammal, animal". Which of the following statement/s is/are true with reference to this series? (A) It is in order of increasing intension (B) It is in order of increasing extension (C) It is in order of decreasing intension (D) It is in order of decreasing extension Choose the correct answer from the options given below :