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Reyana09
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Answer to: Calgon used as a water softener is

Correct answer: (a) Na2[Na4(PO3)6] Explanation: The complex salt of metaphosphoric acid sodium hexametaphosphate (NaPO3), is known as calgon. It i...

4 years ago
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Hydrogen
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Answer to: Water is (a) more polar than H2S (b) more or less identical in polarity with H2S (c) less polar than H2S (d) None of these

Correct answer: (a) more polar than H2S Explanation: Polarity of bond depends on difference in electronegativity of the two concerned atoms. H2O i...

4 years ago
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Hydrogen
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Answer to: Consider the following statements : 1. Atomic hydrogen is obtained by passing hydrogen through an electric arc. 2. Hydrogen gas will not reduce heated aluminium oxide.

Correct answer: (c) 1, 2 and 3 Explanation: Pure hydrogen is evolved by reacting absolute alcohol and Na C2H5OH + Na → C2H5ONa + 1/2H2 other s...

4 years ago
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Hydrogen
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Answer to: D2O is preferred to H2O, as a moderator, in nuclear reactors because

Correct answer: (d) None of these Explanation: H2O absorbs neutrons more than D2O and this decreases the number of neutrons for the fission proces...

4 years ago
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Hydrogen
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Answer to: During translation, activated amino acids get linked to tRNA. This process is commonly called as

Correct answer:(b) discharging of tRNA

4 years ago
Forum
Molecular Basis of Inheritance
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Answer to: Select the incorrectly matched pair. (a) Initiation codons – AUG, GUG (b) Stop codons – UAA, UAG, UGA

Correct answer: (d) Anticodons – mRNA

4 years ago
Forum
Molecular Basis of Inheritance
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Answer to: Sickle cell anemia results from a single base substitution in a gene, thus it is an example of

Correct answer: (a) point mutation

4 years ago
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Molecular Basis of Inheritance
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Answer to: The mutations that involve addition, deletion, or substitution of a single pair in a gene are referred to as

Correct answer: (a) point mutations

4 years ago
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Molecular Basis of Inheritance
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Answer to: Some amino acids are coded by more than one codon, hence the genetic code is

Correct answer: (d) unambiguous

4 years ago
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Molecular Basis of Inheritance
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Answer to: Which out of the following statements is incorrect? (a) Genetic code is ambiguous. (b) Genetic code is degenerate.

Correct answer: (a) Genetic code is ambiguous.

4 years ago
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Molecular Basis of Inheritance
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Answer to: Amino acids which are specified by single codons are

Correct answer: (b) tryptophan and methionine

4 years ago
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Molecular Basis of Inheritance
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Answer to: The three codons which result in the termination of polypeptide chain synthesis are

Correct answer: (b) UAA, UAG, UGA

4 years ago
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Molecular Basis of Inheritance
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Answer to: The process of transformation is not affected by which of the following enzymes?

Correct answer: (c) B, C, D

4 years ago
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Molecular Basis of Inheritance
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Answer to: The year 2003 was celebrated as the 50th anniversary of discovery of

Correct answer: (b) structure of DNA by Watson and Crick

4 years ago
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Molecular Basis of Inheritance
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Answer to: Find out the wrong statement about heterochromatin,

Correct answer: (c) It is transcriptionally active.

4 years ago
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Molecular Basis of Inheritance
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Answer to: The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called

Correct answer: (d) nucleosomes

4 years ago
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Molecular Basis of Inheritance
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Answer to: Histone proteins are (a) basic, negatively charged (b) basic, positively charged

Correct answer: (b) basic, positively charged

4 years ago
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Molecular Basis of Inheritance
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Answer to: Synthesis of DNA from RNA is explained by (a) central dogma reverse (b) reverse transcription (c) feminism (d) all of these

Correct answer: (d) all of these

4 years ago
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Molecular Basis of Inheritance
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Answer to: How far is each base pair from the next one in DNA double helix model?

Correct answer: (d) 0.34 nm

4 years ago
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Molecular Basis of Inheritance
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Answer to: If the sequence of bases in one strand of DNA is ATGCATGCA, what would be the sequence of bases on complementary strands?

Correct answer: (c) TACTACGT

4 years ago
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Molecular Basis of Inheritance
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