development of molecule
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Questions and Answers

What is the main focus of molecular biology?

  • Understanding the interactions between various systems of an organism
  • Analyzing the functions of different tissues and organs
  • Studying the structure of DNA, RNA, and proteins
  • Understanding the interactions between various systems of a cell (correct)

    • Which theory of inheritance proposes that a new character acquired by an individual shall pass on to its progeny?

  • Preformation
  • Epigenesis
  • Pangenesis
  • Acquired Characters (correct)

    • Who accurately described cell division and realized that the wall formed between two daughter cells is not the cause but the result of cell division?

  • Flemming
  • Mendel
  • Darwin
  • Von Nageli (correct)

    • What is the term for the reproductive tissues or cells that produce gametes?

    <p>Germplasm</p> Signup and view all the answers

    What is the process by which organisms with heritable traits that highlight survival and reproduction tend to leave more offspring than their peers?

    <p>Natural Selection</p> Signup and view all the answers

    Who conducted hybridization experiments on the garden peas between 1856-1863?

    <p>Mendel</p> Signup and view all the answers

    What is the law that states that genes for different traits are sorted separately from one another?

    <p>Law of Independent Assortment</p> Signup and view all the answers

    What are the two types of nitrogenous bases in DNA?

    <p>Purines and pyrimidines</p> Signup and view all the answers

    Who discovered that the X chromosome determines gender in drosophila?

    <p>Morgan</p> Signup and view all the answers

    What is the rule that states that the amount of guanine equals the amount of cytosine, and the amount of adenine equals the amount of thymine?

    <p>Chargaff's rule</p> Signup and view all the answers

    What is the term for a sequence of three bases that codes for a single amino acid?

    <p>Codon</p> Signup and view all the answers

    What is the structure of DNA, as revealed by X-ray diffraction patterns?

    <p>Double-stranded helix</p> Signup and view all the answers

    What is the central dogma of molecular biology?

    <p>DNA acts as a template for RNA, and RNA acts as a template for a protein</p> Signup and view all the answers

    What is a key concept of the Cell Theory?

    <p>All living things are either single cells themselves or multicellular</p> Signup and view all the answers

    What is a common observation in the offspring of parents with different characteristics in the past?

    <p>The offspring often appear to be a blend of both parents</p> Signup and view all the answers

    What is the role of chromatin in the cell?

    <p>Chromatin is the stainable material in the nucleus</p> Signup and view all the answers

    What is the basis of natural selection?

    <p>Organisms with heritable traits that highlight survival and reproduction tend to leave more offspring</p> Signup and view all the answers

    What is the name of the theory of inheritance that proposes that differentiation into various organs or parts takes place only after fertilization?

    <p>Epigenesis</p> Signup and view all the answers

    What is the primary idea behind the Law of Segregation?

    <p>That each inherited trait is defined by a gene pair</p> Signup and view all the answers

    What is the significance of the X chromosome in drosophila, according to Morgan's discovery?

    <p>It carries inheritable traits that can be passed along to male offspring</p> Signup and view all the answers

    What is the Central Dogma, as hypothesized by Crick?

    <p>That the primary function of genes is to manufacture proteins</p> Signup and view all the answers

    What is the result of the sorting of chromosomes from each homologous pair during meiosis?

    <p>Gametes that contain only half of the chromosomal complement of each parent</p> Signup and view all the answers

    What is the significance of the periodic structure of DNA, as revealed by X-ray diffraction patterns?

    <p>It reveals the regular, repeating pattern of DNA</p> Signup and view all the answers

    What is the relationship between the amount of adenine and thymine in DNA, according to Chargaff's rule?

    <p>The amount of adenine is equal to the amount of cytosine, and the amount of thymine is equal to the amount of guanine</p> Signup and view all the answers

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