Biochemistry Basics

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Questions and Answers

What are the three fields into which biochemistry may be divided?

  • Structural biology, enzymology, and metabolism (correct)
  • Genetics, microbiology, and immunology
  • Botany, zoology, and ecology
  • Physiology, anatomy, and pathology

Which molecules does biochemistry primarily focus on?

  • Vitamins, minerals, and antioxidants
  • Hormones, neurotransmitters, and enzymes
  • Proteins, nucleic acids, carbohydrates, and lipids (correct)
  • Toxins, pollutants, and carcinogens

What does biochemistry focus on understanding?

  • The chemical basis for biological processes (correct)
  • The behavioral patterns of organisms
  • The ecological interactions between species
  • The physical characteristics of living organisms

What is biochemistry closely related to?

<p>Molecular biology (C)</p> Signup and view all the answers

What does the chemistry of the cell depend upon?

<p>Reactions of small molecules and ions (A)</p> Signup and view all the answers

What is the main advantage of preimplantation genetic diagnosis (PGD) when used to screen for a specific genetic disease?

<p>It avoids selective abortion and makes it highly likely that the baby will be free of the disease (D)</p> Signup and view all the answers

What technique is advisable to obtain embryos for evaluation in preimplantation genetic diagnosis (PGD)?

<p>Blastocyst biopsy around day 5 or 6 of development (C)</p> Signup and view all the answers

What does the term preimplantation genetic screening (PGS) refer to?

<p>Testing whether embryos have abnormal chromosomes' number (C)</p> Signup and view all the answers

What is the primary requirement for obtaining oocytes or embryos for evaluation in preimplantation genetic diagnosis (PGD)?

<p>In vitro fertilization (IVF) (A)</p> Signup and view all the answers

Who performed the world's first preimplantation genetic diagnosis (PGD)?

<p>Handyside, Kontogianni, and Winston at the Hammersmith Hospital in London (B)</p> Signup and view all the answers

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