Molecular Basis of Inheritance

Molecular Basis of Inheritance

Easy Questions

Advanced Botany

Plant Growth and Development
Organisms and Populations
Ecosystem
Biodiversity and Conservation
Environmental Issues
Microbes in Human Welfare
Strategies for Enhancement in Food Production
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Sexual Reproduction in Flowering Plants
Reproduction in Organisms
The Living World
Respiration in Plants
Photosynthesis
Mineral Nutrition
Transport in Plants
Cell Cycle and Cell Division
Cell-The Unit of Life
Anatomy of Flowering Plants
Morphology of Flowering Plants
Plant Kingdom
Biological Classification
  1. What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA?








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    UAA is the stop codon. Therefore at 25th amino acid the synthesis of polypeptide stops. So, a polypeptide of 24 Amino acid is formed.

    Correct Option: B

    UAA is the stop codon. Therefore at 25th amino acid the synthesis of polypeptide stops. So, a polypeptide of 24 Amino acid is formed.

  1. 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?








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    AUG is initiating codon. UCG codes for serine, UUU codes for phenylalan, UGU codes for cysteine.

    Correct Option: A

    AUG is initiating codon. UCG codes for serine, UUU codes for phenylalan, UGU codes for cysteine.

  1. During translation initiation in prokaryotes, a GTP molecule is needed in








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    For the formation of initiation complex during translation of mRNA, GTP is also required. The initiator AUG codes for the formylmethionine in prokaryotes.

    Correct Option: D

    For the formation of initiation complex during translation of mRNA, GTP is also required. The initiator AUG codes for the formylmethionine in prokaryotes.

  1. During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and








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    Replication begins at the Ori - origin of replication and proceeds on both sides from the Ori. Unidirectional replication is rare. RNA primers are involved in both prokaryotes and eukaryotes.

    Correct Option: D

    Replication begins at the Ori - origin of replication and proceeds on both sides from the Ori. Unidirectional replication is rare. RNA primers are involved in both prokaryotes and eukaryotes.

  1. The telomeres of eukaryotic chromosomes consist of short sequences of








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    Telomeres are non sticky terminal ends of the chromosomes. It has heterochromatin and repetitive DNA.

    Correct Option: C

    Telomeres are non sticky terminal ends of the chromosomes. It has heterochromatin and repetitive DNA.