Description : A frameshift mutation changes the reading frame because the genetic code (A) Is degenerate (B) Is overlapping (C) Has no punctuations (D) Is universal
Last Answer : Answer : C
Description : What is not true for genetic code? (a) It is nearly universal. (b) It is degenerate. (c) It is unambiguous. (d) A codon in mRNA is read in a non-contiguous fashion.
Last Answer : (c) It is unambiguous.
Last Answer : d) A codon in mRNA is read in a non-contiguous
Description : .Because most of the amino acids are represented by more than one codon, the genetic code is(a) overlapping (b) wobbling (c) degenerate (d) generate.
Last Answer : a) overlapping
Description : Because most of the amino acids are represented by more than one codon, the genetic code is (a) overlapping (b) wobbling (c) degenerate (d) generate
Last Answer : (c) degenerate
Description : Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria
Last Answer : Ans. ((d))
Description : Genetic code is (A) Overlapping (B) Non-overlapping (C) Not universal (D) Ambiguous
Last Answer : Answer : B
Description : The one aspect which is not a salient feature of genetic code, is its being (a) degenerate (b) ambiguous (c) universal (d) specific.
Last Answer : degenerate
Last Answer : (d) specific.
Description : Following are the characteristic of genetic code (a) It is triplet (b) It is universal (c) It is non-overlapping (d) It is ambiguous
Last Answer : Ans:(a)
Description : Which of the following is not a property of the genetic code? (a) Non-overlapping (b) Ambiguous (c) Degeneracy (d) Universal
Last Answer : (a) Non-overlapping
Last Answer : (b) Ambiguous
Description : Genetic code is said to be degenerate because (A) It can undergo mutations (B) A large proportion of DNA is non-coding (C) One codon can code for more than one amino acids (D) More than one codons can code for the same amino acids
Last Answer : Answer : D
Description : Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? (a) Genetic code is specific. (b) Genetic code is not ambiguous. (c) Genetic code is redundant. (d) Genetic code is nearly universal
Last Answer : (c) Genetic code is redundant.
Description : Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? (a) Genetic code is specific. (b) Genetic code is not ambiguous. (c) Genetic code is redundant. (d) Genetic code is nearly universal.
Last Answer : (d) Genetic code is nearly universal
Description : A tessellated model is said to be valid if there are ________ a.no missing facets b.no degenerate facets c.no overlapping facets d.all of the above
Last Answer : d.all of the above
Description : All the following statements about recognition of a codon on mRNA by an anticodon on tRNA are correct except (A) The recognition of the third base of the codon is not very precise (B) ... degeneracy of the genetic code (D) Wobble results in incorporation of incorrect amino acids in the protein
Description : Out of 64 codons, 61 codons code for 20 types of amino acid. It is called (a) degeneracy of genetic code (b) overlapping of gene (c) wobbling of codon (d) universility of codons.
Last Answer : (a) degeneracy of genetic code
Description : 5. Some amino acids are coded by more than one codon hence the codon is said to be a)Universal b)Degenerate c)Unambiguous d)Specific
Last Answer : b)Degenerate
Description : All the following statements about Wilson’s disease are correct except (A) It is a genetic disease (B) The defect involves copper-dependent P-type ATPase (C) Copper is deposited in liver, basal ganglia and around cornea (D) Plasma copper level is increased in it
Description : All the following statements about restriction fragment length polymorphism are true except (A) It results from mutations in restriction sites (B) Mutations in restriction sites can occur in coding or non- ... It is inherited in Mendelian fashion (D) It can be used to diagnose any genetic disease
Description : All the following statements about xeroderma pigmentosum are true except (A) It is a genetic disease (B) Its inheritance is autosomal dominant (C) uvr ABC excinuclease is defective in this disease (D) It results in multiple skin cancers
Description : Assertion : Comparative biochemistry provides a strong eviednce in favour of common ancestory of living beings. Reason : Genetic code is universal.
Last Answer : Assertion : Comparative biochemistry provides a strong eviednce in favour of common ancestory of living ... both the assertion and reason are false.
Description : Production of a human protein in bacteria by genetic engineering is possible because (a) the human chromosome can replicate in bacterial cell (b) the mechanism of gene regulation is identical in ... ) bacterial cell can carry out the RNA splicing reactions (d) the genetic code is universal.
Last Answer : (d) the genetic code is universal.
Description : Which of the codes given below contains only the correct statements? Statements: (i) Venn diagram is a clear method of notation (ii) Venn diagram is the most direct method of testing the validity of categorical syllogisms (iii) ... ) (C) (ii) (iii) & (iv) (D) (i) (iii) & (iv)
Last Answer : Answer: B
Description : The torque-speed characteristics of an a.c. operated universal motor has a ______characteristic and it______ be started under no-load condition. (A) inverse, can (B) nearly inverse, can (C) inverse, cannot (D) nearly inverse, cannot
Last Answer : Ans: C If torque is zero then speed may exceed up to infinite, that is dangerous for machine and machine can be damaged. N α 1/ T
Description : All of the following statements about nonsense codons are true except (A) They do not code for amino acids (B) They act as chain termination signals (C) They are identical in nuclear and mitochondrial DNA (D) They have no complementary anticodons
Description : In sticky ends produced by restriction endonucleases (A) The 2 strands of DNA are joined to each other (B) The DNA strands stick to the restriction endonuclease (C) The ends of a double stranded fragment are overlapping (D) The ends of a double stranded fragment are non overlapping
Description : All are true about lesch-nyhan syndrome except (A) Produces self-mutilation (B) Genetic deficiency of the enzyme (C) Elevated levels of uric acid in blood (D) Inheritance is autosomal recessive
Description : Which one of the following statements in regard to the excretion by the human kidneys is correct? (a) Descending limb of loop of Henle is impermeable to water. (b) Distal convoluted tubule is ... reabsorbed by the renal tubules. (d) Ascending limb of loop of Henle is impermeable to electrolytes.
Last Answer : (c) Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules.
Description : Which of the following statements is correct? (A) Uniformity coefficient represents the shape of the particle size distribution curve. (B) For a well graded soil, both uniformity coefficient and coefficient of ... if it has most of the particles of about the same size (D) None of the above
Last Answer : Answer: Option D
Description : Consider the following statements: 1. For a saturated soil, Skempton's B-parameter is nearly equal to unity. 2. For an undisturbed sensitive clay, the stress-strain curve shows a peak. 3. Interlocking contributes significantly to the shearing ... 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only
Last Answer : (a) 1, 2 & 3
Description : Correct order of extent of overlapping is :-
Last Answer : Correct order of extent of overlapping is :- A. `2s-2s gt 2p-2p gt 2s-2p` B. `1s-1s gt 2p-2p gt 2s-2p` ... -2s lt 3s-3s` D. `3s-3s gt 3s-3p gt 3p-3p`
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
Description : The genetic code operates via (A) The protein moiety of DNA (B) The base sequences of DNA (C) The nucleotide sequence of mRNA (D) The base sequence of tRNA
Description : The genetic code operates through (A) The protein moiety of DNA (B) Cistrom of DNA (C) Nucleotide sequence of m RNA (D) The anticodons of tRNA
Description : Degeneracy of genetic code implies that (A) Codons do not code for specific amino acid (B) Multiple codons must decode the same amino acids (C) No anticodon on tRNA molecule (D) Specific codon decodes many amino acids
Description : Genetic code is (A) Collection of codon (B) Collection of amino acids (C) Collection of purine nucleotide (D) Collection of pyrimidine nucleotide
Last Answer : Answer : A
Description : All the following statements about renal tubular acidosis are correct except (A) Renal tubules may be unable to reabsorb bicarbonate (B) Renal tubules may be unable to secrete hydrogen ions (C) Plasma chloride is elevated (D) Anion gap is decreased
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 : All the following statements about tRNA are correct except (A) A given tRNA can be charged with only one particular amino acid (B) The amino acid is recognized by the anticodon of tRNA (C) The amino acid is attached to end of tRNA (D) The anticodon of tRNA finds the complementary codon on mRNA
Description : All the following statements about cystic fibrosis are correct except (A) It is inherited as an autosomal recessive disease (B) It affects a number of exocrine glands (C) It causes increased sweating (D) Sweat chlorides are above 60 mEq/L in this disease
Description : All the following statements regarding calcium are correct except (A) It diffuses as a divalent cation (B) It freely diffuses across the endoplasmic reticulum of muscle cells (C) It can exist in the blood as ionic form and also protein bound (D) It is found in high concentration in bones
Description : All the following statements about ceruloplasmin are correct except (A) It is a copper-containing protein (B) It possesses oxidase activity (C) It is synthesised in intestinal mucosa (D) Its plasma level is decreased inWilson’s disease
Description : All the following statements about inulin are correct except (A) It is completely non-toxic (B) It is completely filtered by glomeruli (C) It is not reabsorbed by tubular cells (D) It is secreted by tubular cells
Description : All the following statements about pepsin are correct except (A) It is smaller than pepsinogen (B) It is formed by the action of HCl on its precursor (C) Its optimum pH is 1.0–2.0 (D) It hydrolyses the C-terminal and N-terminal peptide bonds of proteins
Description : All the following statements about albinism are correct except (A) Tyrosine hydroxylase (tyrosinase) is absent or deficient in melanocytes (B) Skin is hypopigmented (C) It results in mental retardation (D) Eyes are hypopigmented
Description : All the following statements about phenylketonuria are correct except (A) Phenylalanine cannot be converted into tyrosine (B) Urinary excretion of phenylpyruvate and phenyllactate is increased (C) It ... diet (D) It leads to decreased synthesis of thyroid hormones, catecholamines and melanin
Description : All of the following statements about the enzymic complex that carries out the synthesis of ATP during oxidative phosphorylation are correct except (A) It is located on the matrix side of the inner ... inhibited by oligomycin (C) It can exhibit ATPase activity (D) It can bind molecular O2
Last Answer : D
Description : With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the ... is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.
Last Answer : Answers-3 Chylomicrons are formed in the gut from exogenous triacylglycerols and cholesterol. They are released into the lymph and thereby enter the blood.They are not formed in the liver.