Chromosomes and DNA – MDCAT Biology, Chapter 20 – Level 4

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Chromosomes and DNA - Level 4

Chapter 20 - MDCAT Biology - Test Preparation MCQs

Read these Multiple Choice Questions of Chromosomes and DNA MDCAT Chapter 20 and start the online test.

  1. The first stage of gene expression isTranscription
  2. The second stage of gene expression in which mRNA-directed polypeptide synthesis by ribosomes takes place is:Translation
  3. Start Codon is:AUG
  4. If a small segment of chromosome may be missing, a situation called:Deletion
  5. If a part of chromosome be present in excess to the normal chromosome, a condition called:Duplication
  6. The transfer of segment of chromosome to a non-homologous chromosome is called:Translocation
  7. Reduce crossing over is present in:Inversion
  8. The DNA get damage by all except:Ultrasonic rays
  9. Heritable blood disorder due to presence of defective Hemoglobin molecule is:Sickle Cell Anaemia
  10. Hereditary condition in which the affected individuals are unable to break down the amino acid phenylalanine is:Phenylketonuria

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1. The second stage of gene expression in which mRNA-directed polypeptide synthesis by ribosomes takes place is:

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2. If a part of chromosome be present in excess to the normal chromosome, a condition called:

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3. The DNA get damage by all except:

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4. Heritable blood disorder due to presence of defective Hemoglobin molecule is:

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5. The transfer of segment of chromosome to a non-homologous chromosome is called:

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6. If a small segment of chromosome may be missing, a situation called:

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7. Reduce crossing over is present in:

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8. Hereditary condition in which the affected individuals are unable to break down the amino acid phenylalanine is:

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9. Start Codon is:

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10. The first stage of gene expression is

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