OnLine Genetics Textbook - Quiz

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15 Questions - Developed by: Andrew Mao - The quiz is developed on: - 13.092 taken - User Rating: 2.89 of 5.0 - 36 Votes

This is a quiz for the OnLine Genetics Textbook. See if you have mastered the concepts covered!

  • 1
    What is DNA? Who founded it?
    Deoxyribonucleic acid founded by Phoebus Levene
    Ribonucleic acid founded by Friedrich Miescher
    Deoxyribonucleic acid founded by Friedrich Miescher
    Deoxyribonucleic acid founded by Albert Einstein
  • 2
    What is RNA? What does RNA do?
    Deoxyribonucleic acid that holds all the information about the body
    Ribonucleic acid that holds all the information about the body
    Deoxyribonucleic acid that carries messages from the nucleus on how to make protein
    Ribonucleic acid that carries messages out from the nucleus on how to make protein
  • 3
    What are the components of the DNA backbone? What is the point of the DNA backbone?
    Sugar and phosphate, it serves to connect the nitrogen bases
    Nitrogen bases, it serves to hold all of the information about the body
    Nitrogen bases, it serves to connect sugar and phosphate
    Sugar and phosphate, it serves to shape the DNA into the double helix structure
  • 4
    What are the nitrogen bases and how do they pair up?
    Thymine pairs with Guanine and Cytosine pairs with Adenine
    Thymine pairs with Cytosine and Guanine pairs with Adenine
    Adenine pairs with Cytosine and Guanine pairs with Thymine
    Adenine pairs with Thymine and Guanine pairs with Cytosine
  • 5
    What is a gene? Where is it located?
    It is a segment of DNA found in chromosomes
    It is a segment of DNA found in the nucleus
    It is a nitrogen base found in the DNA
    It is a segment of DNA found in the nitrogen bases
  • 6
    Why does DNA need to regenerate?
    So that the cell can split in half to make two gametes
    So that the cell can perform Mitosis
    So that the cell can perform Meiosis
    So that the cell has more DNA and therefore it is smarter
  • 7
    How is DNA replicated?
    The ligase splits the DNA molecule into two strands, the Primase copies the DNA on, the ligase then fixes errors, and finally the Polymerase I seals the DNA together
    The helicase splits the DNA molecule into two strands, the Polymerase copies on the DNA, the Ligase adds on the RNA, and then the Primase seals the DNA and RNA together
    The helicase splits the DNA molecule into two strands, the ligase lays down RNA, the Primase replaces the RNA with DNA, and the Polymerase II seals the DNA together
    The helicase splits the DNA molecule into two strands, the primase lays down RNA, Polymerase III copies on DNA, Polymerase I replaces RNA with DNA, and Ligase seals the DNA together
  • 8
    What is the purpose of the cell cycle?
    So that the cell can replicate its DNA
    So that the cell can split and form 4 haploid cells
    There is no point in the cell cycle, it is just a series of events happening in the cell
    So that the cell can perform Mitosis
  • 9
    What is the point of Mitosis and why is it important?
    It is important as it is used to make the cell a gamete
    It is important as it is used to make four haploid cells
    It is important as it is used so that the organism can grow and replace damaged cells
    It is important as it is used so that the DNA can be replicated in preparation for Meiosis
  • 10
    What is the point of Meiosis? How does this process occur?
    To create a single gamete, the cell is simply split two form two haploid gamete cells
    Meiosis is only used as another name for Mitosis
    To create 4 gametes, the DNA is replicated, chromosome pairs mix, then the cell is split twice to form 4 gametes
    To create an identical cell, the DNA is duplicated and then the cell splits to form two identical cells
  • 11
    What are the major differences between Mitosis and Meiosis?
    Mitosis creates 4 haploid cells while Meiosis creates 4 identical cells
    Mitosis creates an identical cell while Meiosis creates 4 gametes
    Mitosis creates 4 gametes while Meiosis creates an identical cell
    Mitosis creates a haploid cell while Meiosis creates an identical cell
  • 12
    What is different about the chromosome pairs in Mitosis and Meiosis?
    The chromosome pairs are always the same whether Meiosis or Mitosis
    The chromosome pairs in Meiosis are random while in Mitosis they are the same as the parent cell
    The chromosome pairs in Meiosis are the same as the parent cell while in Mitosis they are random
    The chromosomes are not in pairs in Meiosis while in Mitosis they are
  • 13
    Describe the process of sexual reproduction.
    A random cell in each parent's body is split in half and they join together in a cell with a random amount of chromosomes
    Mitosis occurs to create a gamete; the egg is then fertilized by the sperm to complete the process
    Two cells are randomly selected from both parents' bodies and joined together in a cell with 92 chromosomes
    Gametes are created first; then, the egg is fertilized by the sperm to complete the process
  • 14
    What are the advantages of sexual reproduction over asexual reproduction?
    It requires two parents, not just one
    Sexual reproduction and asexual reproduction are the same
    It gives genes from both parents to the offspring
    It carries adaptions from both parents, removing mutations; it also creates variation in offspring
  • 15
    What are the advantages of asexual reproduction over sexual reproduction?
    Asexual reproduction and sexual reproduction are the same
    It can happen whenever you want
    It requires only one parent, has a higher success rate, and takes less time
    It requires two parents