Description : If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered ? (1) 11 (2) 33 (3) 333 (4) 1
Last Answer : (2) 33
Description : If there are 999 bases in an RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered? (a) 11 (b) 33 (c) 333 (d) 1
Last Answer : (d) 1
Last Answer : b) 33
Description : Degeneracy of the genetic code denotes the existence of (A) Base triplets that do not code for any amino acids (B) Codons consisting of only two bases (C) Codons that include one or more of the unusual bases (D) Multiple codons for a single amino acid
Last Answer : Answer : B
Description : Amino acids provide the nitrogen for the synthesis of (A) The bases of the phospholipids (B) Uric acid (C) Glycolipids (D) Chondroitin sulphates
Last Answer : Answer : A
Description : Which of the following statement(s) is/are true concerning translation of the mRNA message to protein synthesis? a. An adaptor molecule, tRNA, recognizes specific nucleic acid bases and unites them ... and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours
Last Answer : Answer: a, b The synthesis of protein involves conversion from a four-letter nucleotide language to one of 20 chemically distinct amino acids. This process is referred to as ... translation and be moving down the mRNA molecules simultaneously, thus increasing the rate of protein synthesis
Description : Read the statements given below and identify the incorrect statement. a) The human genome contains 3164.7 million nucleotide bases. b) The average gene consists of 30,000 bp c) The total number of genes is ... . d) Chromosome Y has 231 genes e) Less than 2% of the genome codes for proteins.
Last Answer : d) Chromosome Y has 231 genes
Description : What are the purine bases of RNA? -Biology
Last Answer : answer:
Description : List the pyrimidine bases of RNA. -Biology
Description : what are the four bases that make up RNA?
Last Answer : The four bases that make up RNA are: * Adenine (A) * Cytosine(C) * Guanine (G) * Uracil (U)
Description : What is one the bases found in RNA?
Last Answer : uracil, cytosine, adenine, guanine
Description : What is the possible combinations of the four bases of RNA?
Last Answer : Feel Free to Answer
Description : Which sequence of RNA bases with pair up with a strand of DNA bases that reads TACTGCA?
Last Answer : color
Description : The correct statement concerning RNA and DNA polymerases is (A) RNA polymerase use nucleoside diphosphates (B) RNA polymerase require primers and add bases at 5' end of the growing polynucleotide ... and DNA polymerases can add nucleotides only at the 3' end of the growing polynucleotide chain
Last Answer : Answer : D
Description : In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core ... RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation
Last Answer : Answer : C
Description : When RNA in hydrolysed there is no relationship among the quantities of four bases obtained like DNA. What does this fact indicate about structure of RNA ?
Last Answer : Ans. This indicate that RNA has a single strand structure.
Description : Which one of the following is not applicable to RNA? (a) Heterocyclic nitrogenous bases (b) Chargaff ’s rule (c) Complementary base pairing (d) 5’ phosphoryl and 3’ hydroxyl ends
Last Answer : (a) Heterocyclic nitrogenous bases
Last Answer : (b) Chargaff ’s rule
Description : Which is wrong about nucleic acids? (a) DNA is single stranded in some viruses. (b) RNA is double stranded occasionally. (c) Length of one helix is 45 Å in B-DNA. (d) One turn of Z-DNA has 12 bases
Last Answer : (c) Length of one helix is 45 Å in B-DNA
Description : The enzyme adds complementary bases to the DNA template strand during replication. a. Ligase b. Helicase c. DNA polymerase III d. RNA polymerase
Last Answer : d. RNA polymerase
Description : The RNA that pick up specific amino acid from amino acid pool in the cytoplasm to ribosome during protein synthesis is called (a) rRNA (b) RNA (c) mRNA (d) tRNA.
Last Answer : a) rRNA
Description : The RNA that pick up specific amino acid from amino acid pool in the cytoplasm to ribosome during protein synthesis is called (a) rRNA (b) RNA (c) mRNA (d) tRNA
Last Answer : tRNA
Description : Which amino acid is specified by genetic codes ACU, ACC, ACA, ACG showing degeneracy ?
Last Answer : Which amino acid is specified by genetic codes ACU, ACC, ACA, ACG showing degeneracy ? A. Leucine B. Methionine C. Glycine D. Threonine
Description : Triplet sequence found in mRNA which codes for single amino acid
Last Answer : Ans. Codon
Description : Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as ‘start’ or ‘stop’ codon? (a) UCG – Start (b) UUU – Stop (c) UGU – Leucine (d) UAC – Tyrosine
Last Answer : (d) UAC – Tyrosine
Description : has the property that corrupting or garbling a code word will likely produce a bit string that is not a code word: a. Error deleting codes b. Error detecting codes c. Error string codes
Last Answer : b. Error detecting codes
Description : Absolute entitiesare_ Ss whom value signify storage locations that are independent of resulting machine code: a. Numeric constants b. String constants c. Fixed addresses d. Operation codes e. Allofthese
Last Answer : e. Allofthese
Description : An important step in protein synthesis is transcription. Which of the following statement(s) is/are true concerning this process? a. The first step in gene transcription involves separating the double helix ... nucleus to the cytoplasm d. Only one protein can be produced from an initial mRNA strand
Last Answer : Answer: c Transcription of a gene begins at an initiation site associated with a specific DNA sequence, termed a promoter region. After binding to DNA, the RNA polymerase opens up a short ... different proteins from the same gene. mRNA is exported from the nucleus only after processing is complete
Description : Cistron is a) The coding sequence of DNA b) The functional unit of DNA molecule that codes for a particular gene product c) Intervening non coding sequence of DNA d) The sequences which are removed during RNA splicing.
Last Answer : b) The functional unit of DNA molecule that codes for a particular gene product c) Intervening non coding sequence of DNA
Description : Transfer RNA transfers (A) Information from DNA to ribosomes (B) Information from mRNA to cytosol (C) Amino acids from cytosol to ribosomes (D) Proteins from ribosomes to cytosol
Description : The α-amino group of the new amino acyl tRNA in the A site carries out a nucleophilic attack on the esterified carboxyl group of the peptidyl tRNA occupying the P site. This reaction is catalysed by (A) DNA polymerase (B) RNA polymerase (C) Peptidyl transferase (D) DNA ligase
Description : The newly entering amino acyl tRNA into A site requires (A) EF-II (B) Ribosomal RNA (C) mRNA (D) EF-I
Description : RNA that transfer amino acids from cytoplasm to ribosome
Last Answer : Ans. m-RNA
Description : Chromosomes consist of – (1) DNA and lipids (2) RNA and amino acids (3) DNA and proteins (4) RNA and sugar
Last Answer : (3) DNA and proteins Explanation: A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements ... . Chromosomes also contain DNAbound proteins, which serve to package the DNA and control its functions.
Description : Chromosomes consist of (1) DNA and lipids (2) RNA and amino acids (3) DNA and proteins (4) RNA and sugar
Last Answer : DNA and proteins
Description : Do you expect the carbon hydride of the type (CnH2n+2) to acts as Lewis acid or bases? Justify your answer
Last Answer : Ans: carbon hydride of the types(CnH2n+2)are electron-precise hydrides. In other words they have exact number of electron to form covalent bonds therefore they do not show any tendency to either gain or lose electron hence they are neither Lewis acid or Lewis bases.
Description : What prevents extremes of pH in biological systems? a. acid b. bases c. buffers d. neutrons
Last Answer : c. buffers
Description : A nucleic acid has a "backbone" consisting of _____. a. The nitrogenous bases. b. sugar-phosphate-sugar-phosphate-... c. N-C-N-C-N-C-N-C-... d. functional groups.
Last Answer : b. sugar-phosphate-sugar-phosphate-...
Description : What are conjugate acid and bases?
Last Answer : When an acid is dissolved in water it will form H3O+ ions and an anion the anion of an acid is called conjugate base and H3O+ is called conjugate acid e.g. CH3OOH + H2O H3O+ + CH3COO– Acid Base Conjugate acid Conjugate base
Description : Which of the following is NOT a general property of hydroxide bases in aqueous solution? w) High solubility x) Bitter taste y) Ability to neutralize aqueous acid solutions z) Ability to change phenolphthalein from colorless to red
Last Answer : ANSWER: W -- HIGH SOLUBILITY (The hydroxides of the alkali metals are soluble in water but all the other metal hydroxides are only moderately or sparingly soluble.)
Description : Each chromosome consists of two identical (A) Genes (B) Nuclei (C) Chromatids (D) Bases
Last Answer : (C) Chromatids
Description : The process of dividing an analog signal into a string of discrete outputs, each of constant amplitude, is called: (A) Strobing (B) Amplification (C) Conditioning (D) Quantization
Last Answer : (D) Quantization
Description : An unknown amino acid has `0.32%` sulphur by mass . If each molecule has one sulphur atom only 1 g of amino acid has . . . . . . . Molecules :-
Last Answer : An unknown amino acid has `0.32%` sulphur by mass . If each molecule has one sulphur atom only 1 g of amino ... C. `6.02xx10^(24)` D. `6.02xx10^(23`
Description : All the following statements about charging of tRNA are correct except (A) It is catalysed by amino acyl tRNA synthetase (B) ATP is converted into ADP and Pi in this reaction (C) The enzyme recognizes the tRNA and the amino acid (D) There is a separate enzyme for each tRNA
Description : Along the α-helix each amino acid residue advances in nm by (A) 0.15 (B) 0.10 (C) 0.12 (D) 0.20
Description : Each turn of α-helix contains the amino acid residues (number): (A) 3.6 (B) 3.0 (C) 4.2 (D) 4.5
Description : In the international standard ASCII encoding, each character needs 7 bits of storage; however, in an ASCII string one byte (8 bits) is usually used for each character. Explain why this is done?
Last Answer : Welcome to ask-public. I don’t want to do your homework for you, but I will get you started. The extra bit is called a parity bit. If you don’t know what that means, you can do some Web searching to learn more. If you are still stuck, I can explain further.
Description : Would two asteroids tied together with string and rotating around each other in an empty Universe generate centrifugal force?
Last Answer : See Mach’s Principle, which in turn influenced Einstein’s formulation of general relativity. It can be stated, “Local physical laws are determined by the large-scale structure of the universe.” Great question.
Description : How can you hold a piece of string, one end in each hand, and tie a knot in the string with out letting go of either end? -Riddles
Last Answer : Cross your arms before you seize the ends of the string. Uncross your arms and it will tie a knot!