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  • Question
  • Which of the following can be diagnosed by amniocentesis?


  • Options
  • A. Down's syndrome
  • B. Cystic Fibrosis
  • C. Sickle cell anemia
  • D. All of these

  • Correct Answer
  • All of these 


  • Recombinant DNA Technology problems


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    • 1. Some genetic diseases cannot be diagnosed by changes in restriction sites. Some of these can be detected by allele-specific oligonucleotide probes. These are

    • Options
    • A. copies of the gene with an altered sequence so that a restriction site is inserted
    • B. mutagenized copies of a gene
    • C. short sequences that will hybridize only to a specific base sequence
    • D. PCR-amplified variable numbers of tandem repeats (VNTRs)
    • Discuss
    • 2. First discovered, Type II restriction endonuclease was

    • Options
    • A. Hinf I
    • B. Eco K
    • C. Hind II
    • D. EcoRI
    • Discuss
    • 3. Which of the following genetic diseases would be amenable to genetic engineering?

    • Options
    • A. Down's syndrome
    • B. Muscular dystrophy
    • C. Cystic fibrosis
    • D. Cri du Chat
    • Discuss
    • 4. Isoschizomers recognize

    • Options
    • A. same recognition sequence but different recognition site
    • B. same recognition site and recognition sequence
    • C. same recognition site and different recognition sequence
    • D. different recognition site and different recognition sequence
    • Discuss
    • 5. Which of the following techniques can be used to determine the defective gene and for developing cancer?

    • Options
    • A. Western blot
    • B. Southern blot
    • C. Northern blot
    • D. Eastern blot
    • Discuss
    • 6. The transfer of antibiotic-resistant genes from genetically engineered bacteria to disease-causing bacteria __________ .

    • Options
    • A. would be of no concern if it occurred.
    • B. has occurred
    • C. can never occur
    • D. seems unlikely
    • Discuss
    • 7. Restriction enzymes are named for

    • Options
    • A. the person who discovered
    • B. the bacterium they are derived from
    • C. the viral DNA that they attack
    • D. none of the above
    • Discuss
    • 8. Which of the following pair will produce complementary sticky ends?

    • Options
    • A. Eco RI & MspI
    • B. Msp I & HPA II
    • C. Sau 3A & Bam HI
    • D. Mbo I & Sau 3A
    • Discuss
    • 9. Which of these genes codes for a protein that plays a role in growth?

    • Options
    • A. DCP1
    • B. SCLC6A4
    • C. KRTHA1
    • D. GH1
    • Discuss
    • 10. Why is golden rice pale yellow in color?

    • Options
    • A. It is rich in chlorophyll a.
    • B. It is rich in beta-carotene.
    • C. It is rich in chlorophyll b.
    • D. It is rich in phycobilins.
    • Discuss


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