Biology Quiz: Cellular Respiration & Genetics
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Questions and Answers

What is the primary purpose of mitosis in a cell?

  • To divide the nucleus and form two identical nuclei (correct)
  • To produce ATP from glucose
  • To create genetic variation among offspring
  • To differentiate a cell into a specialized type

    • Which of the following statements about sex-linked traits is true?

  • They occur due to mutations in any chromosome
  • They are found more commonly in men than women (correct)
  • They are equally common in men and women
  • They are found more commonly in women than men

    • What does a Punnett square illustrate?

  • The possible genetic outcomes of offspring (correct)
  • The genetic variation within a population
  • The genetic traits of one individual
  • The process of cell differentiation

    • What defines a homozygous organism?

    <p>Having two identical alleles for a trait (A)</p> Signup and view all the answers

    What effect does melanin have on the skin?

    <p>It provides UV protection and color to the skin (D)</p> Signup and view all the answers

    What occurs during cellular respiration?

    <p>Glucose is broken down to produce ATP in the presence of oxygen. (B)</p> Signup and view all the answers

    What is the main outcome of cell differentiation?

    <p>Cells become specialized to perform specific functions. (C)</p> Signup and view all the answers

    In the context of genetics, what best describes heterozygous?

    <p>A pair of different alleles. (B)</p> Signup and view all the answers

    Why are mutations significant in genetics?

    <p>They represent changes in genetic material. (D)</p> Signup and view all the answers

    What is a pedigree primarily used for?

    <p>To show how a trait is passed down through generations. (A)</p> Signup and view all the answers

    Study Notes

    Biology

    • Biology is the study of all living things.

    Cellular Respiration

    • Cellular respiration is the breaking down of glucose to produce ATP in the presence of oxygen.
    • The Krebs cycle is when pyruvic acid is broken down.

    Cell Division and Differentiation

    • Mitosis is the division of a cell's nucleus, creating two identical nuclei.
    • Cell differentiation is a change from a general cell type to a cell specialized for a specific task.
    • Cell specialization is the result of differentiation, producing cells with specific functions.

    Pigmentation and Reproduction

    • Melanin provides skin color and UV protection.
    • Sexual reproduction results in genetic variation in offspring.

    Genetics

    • Punnett squares are used to predict offspring genotypes.
    • Homozygous describes an organism with two identical alleles for a gene.
    • Heterozygous describes an organism with two different alleles for a gene.
    • A pedigree is a diagram showing trait inheritance through generations.
    • Sex-linked traits are more common in males than females.
    • Mutations are changes in genetic material.
    • Sickle cell disease is caused by the SS allele.
    • Genetic variation is the difference in genes between individuals.
    • A population is a group of the same species living in a shared area.

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    Description

    Test your knowledge on key concepts in biology, including cellular respiration, cell division, and genetics. This quiz covers essential topics like the Krebs cycle, mitosis, and the roles of melanin. Understand how these processes contribute to life and reproduction.

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