The Law of Independent Assortment
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Questions and Answers

Which of the following is an example of variation within a species?

  • A liger
  • A cama
  • A zonkey
  • A mule (correct)
  • What is the process by which the information from a gene is used to produce a feature or a protein?

  • Alleles
  • Chromosome structure
  • Gene expression (correct)
  • Heredity
  • What is the term for the specific position of a gene on a chromosome?

  • Centromere
  • Chromatid
  • Locus (correct)
  • Allele
  • Which of the following is true about DNA isolation from plant tissue?

    <p>The DNA is protected from digestion by denaturing enzymes at 60°C</p> Signup and view all the answers

    What is the role of RNA polymerase in transcription?

    <p>Forming the mRNA strand</p> Signup and view all the answers

    Where does translation occur in the cell?

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

    What is the function of tRNA in protein synthesis?

    <p>Delivering amino acids</p> Signup and view all the answers

    Which of the following best describes the Law of Segregation according to Mendel’s First Law?

    <p>Each characteristic is governed by a pair of factors (genes)</p> Signup and view all the answers

    What is the term used to describe the physical expression of the genotype or genotype plus environment?

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

    What is the term used to describe the genetic make-up of an individual?

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

    What is the term used to describe the situation when both alleles are different?

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

    Which of the following is true about DNA replication?

    <p>DNA replication occurs during interphase of mitosis and meiosis</p> Signup and view all the answers

    What is the function of messenger RNA (mRNA)?

    <p>Carries genetic information from the DNA to the ribosomes</p> Signup and view all the answers

    What is the difference between RNA and DNA?

    <p>RNA contains the base thymine while DNA contains uracil</p> Signup and view all the answers

    What is the purpose of DNA profiling?

    <p>To identify criminals from crime scenes</p> Signup and view all the answers

    Which of the following is true about sex-linked characteristics?

    <p>They are determined by genes that occur on the X chromosome</p> Signup and view all the answers

    What is the phenotype of a female who is a carrier for a sex-linked condition?

    <p>She shows the normal condition</p> Signup and view all the answers

    What is the chance of producing a haemophiliac child when a female carrier for haemophilia has a child with a normal male?

    <p>25%</p> Signup and view all the answers

    In non-nuclear inheritance, where is the non-nuclear DNA passed on by?

    <p>The female in the cytoplasm of the ovum</p> Signup and view all the answers

    Which of the following correctly describes the phenotype ratio of the F1 generation resulting from a cross between a heterozygous tall pea plant and a heterozygous tall pea plant?

    <p>3 tall : 1 dwarf</p> Signup and view all the answers

    In cows, a parent with a red coat and a parent with a white coat produce offspring with a mottle color called roan. This type of inheritance is known as:

    <p>Incomplete dominance</p> Signup and view all the answers

    Which of the following correctly describes the phenotype ratio of the F2 generation resulting from a cross between two purple-flowered plants from the F1 generation?

    <p>3 purple : 1 white</p> Signup and view all the answers

    In most mammals, including humans, XX is female and XY is male. This type of sex determination is an example of:

    <p>Monohybrid cross</p> Signup and view all the answers

    Which of the following best describes Mendel's second law of independent assortment?

    <p>During gamete formation, any member of a pair of factors has an equal chance of entering a gamete with either member of any other pair of factors.</p> Signup and view all the answers

    In a dihybrid cross between a homozygous dominant pea plant and a homozygous recessive pea plant, what is the ratio of phenotypes in the second filial generation (F2)?

    <p>9 tall red : 3 tall white : 3 dwarf red : 1 dwarf white</p> Signup and view all the answers

    What happens when genes are located on the same chromosome and are inherited together?

    <p>They are linked and do not assort independently.</p> Signup and view all the answers

    What is the term for genes found on the X or Y chromosome?

    <p>Sex-linked genes</p> Signup and view all the answers

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