1. The primary function of DNA in cells is to...




    A. store information that tells the cells which proteins to make
  2. The two strands of a DNA molecule are held together by...




    D. covalent bonds
  3. According to the base-pairing rules, guanine (G) binds with...




    B. cytosine (C)
  4. During DNA replication, the enzyme DNA polymerase...




    A. separates the two nucleotide chains in a DNA molecule
  5. The scientists credited with establishing the structure of DNA are...




    B. Watson and Crick
  6. A section of one DNA strand has the sequence ACCGAGGTT. What is the sequence of an mRNA transcribed from this section of DNA?




    A. UGGUCCAA
  7. Describe the differences between transcription and translation.
    Translation is the process by which the sequence of bases of an mRNA is converted into the sequence of amino acids of a protein. Transcription is the synthesis of an RNA molecule from a DNA template.
  8. What would be the nucleotide sequence of the RNA molecule that is transcribed from DNA with a nucleotide sequence of GCTAATCCG?
    CGAUUAGGC
  9. The point at which two chromatids are attached to each other in a chromosome is called a...
    centromere
  10. ______ are pairs of chromosomes containing genes that code for the same traits.
    Sister Chromatids
  11. In humans, _____, contain 22 autosomes and 1 sex chromosome.
    charyotypes
  12. In humans, the male determines the sex of the child because males have ___ and ___ chromosomes.
    X and Y
  13. The X and Y chromosomes are called the...
    sex chromosomes
  14. How many chromosomes are in the body cells of an organism that has a haploid number of 8?
    16
  15. If the diploid number of chromosomes in a human skin cell is 46 , how many chromosomes would be found in in a human egg cell?
    23
  16. A ____ cell is designated by the symbol 2n, has chromosomes found in a human egg cell?
    diploid
  17. People with Down syndrome have ____ chromosomes.
    47
  18. Know the correct sequence of the cell cycle?
    • G1 ↠ S ↠ G2 ↠ M ↠ C
    • cell-cycle
  19. What happens during the (S) phase of interphase?
    DNA replication (everything is copied)
  20. During mitosis, the cell...
    divides into 2 identical daughter cells
  21. The first three phases of the cell cycle (G1, S, G2) are collectively called...
    Interphase
  22. The cell cycle is controlled by...
    cyclins
  23. In ____, the chromosomes are arranged along the equator (middle) of the cell.
    metaphase
  24. Do you recognize these steps...
          What cycle are they from?
    Phases-of-Mitosis
    • Mitosis
    • Summary-of-Mitosis-1
    • Cytokinesis: The cytoplasm is divided into two cells
    • ch4_phases_allbig
  25. Do you recognize these steps...
          What cycle are they from?
    meiosis
    • Meiosis
    • Summary+of+Meiosis+2+cell+divisions.
    • cell_division_9037
  26. In plant cells, the cell wall prevents pinching or cleavage. Therefore, Cytokinesis in plant cells involves the formation of a...
    cell plate
  27. Separation of homologous chomosomes occurs during what stage of meiosis?
    Anaphase 1
  28. Crossing over occurs during...
    Prophase 1
  29. What process produces haploid sex cells?
    Meiosis 2
  30. Males have XY, whereas females have...
    XX
  31. Somatic (body) cells are diploid; ___ cells are haploid.
    sex
  32. The two main stages of the cell cycle are _____ and _____.
    Metaphase and Anaphase
  33. The correct sequence of mitosis is...
    Prophase, Metaphase, Anaphase, Telaphase, and Cytokinesis
  34. Gametes are produced during...
    meiosis
  35. The longest phase of the cell cycle is...
    Interphase
  36. Which of the following structures is the most complex?

    Cell   Organ System   Organ   Tissue   Organ System    Organism
    Organism
  37. The gamete that contains the genes from the mother is the...
    ovum
  38. During _____, the nucleolus has disappeared, the nucleus begins to disintegrate, and chromosomes are tightly coiled.
    Interphase
  39. During _______, the sister chromatids separate and move to opposite poles.
    prophase
  40. ______ produces 4 new haploid sex cells.
    Meiosis
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Author
dearmaria1
ID
341726
Card Set
Description
Updated