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DNA - Making New Cells and Review
Hauen laguntzarekin: Worthington
  • 1. True or False:

    Cytosine, guanine, thymine and adenine are referred to as phosphates
A) False
B) True
  • 2. True or False:

    DNA is the shape of a helix
A) True
B) False
  • 3. True or False:

    A nucleotide is made up of a sugar, phosphate and a nitrogen base (one of four possibilities)
A) True
B) False
  • 4. True or False:

    The sides of the DNA molecule are made up of repeating nitrogen bases and sugars
A) True
B) False
  • 5. True or False:

    Adenine always pairs with guanine
A) True
B) False
  • 6. True or False:

    Replication is performed prior to cell division
A) False
B) True
  • 7. What is the correct complimentary pairing of the following half strand of DNA:

    ATTGGCAGCC
A) TAAGGCTGCC
B) GCCAATGATT
C) TAACCGTCGG
D) ATTGGCAGCC
  • 8. Which is correct about mitosis?
A) produces two daughter cells that are identical to the parent cell
B) produces gametes (eggs and sperm) that are identical to the parent cell
C) produces gametes (eggs and sperm) that have half the number of chromosomes of the parent cell
D) produces two daughter cells that are identical to each other but different from the parent cell
  • 9. Which is correct about meiosis?
A) produces two daughter cells that are identical to the parent cell
B) produces gametes (eggs and sperm) that have half the number of chromosomes of the parent cell
C) produces two daughter cells that are identical to each other but different from the parent cell
D) produces gametes (eggs and sperm) that are identical to the parent cell
  • 10. Which is the correct order of mitosis:

    a) double stranded chromosomes become visible
    b) membranes form separating the two nuclei into the two daughter cells
    c) chromosomes replicate to become double stranded
    d) double stranded chromosomes line up along the equator of the cell
    e) two nuclei form, each with the diploid number of chromosomes
    f) the chromosomes move to opposite ends of the cell
A) C, A, F, D, E, B
B) C, F, A, D, E, B
C) C, A, D, F, E, B
D) C, D, A, F, E, B
  • 11. True or False:

    44 of the chromosomes in a humans cell are called Autosomes
A) False
B) True
  • 12. True or False:

    Gametes have 23 pairs of chromosomes and are produced by meiosis.
A) False
B) True
  • 13. How many and what type of new cells are produced by meiosis?
A) 4 identical cells
B) 2 identical cells
C) 2 different cells
D) 4 different cells
  • 14. Sex cells or Gametes contain
A) 46 pairs of chromosomes
B) 23 pairs of chromosomes
C) 46 chromosomes
D) 23 chromosomes
  • 15. In asexual reproduction the offspring are:
A) genetically different to the parent because of meiosis
B) genetically identical to the parent because of meiosis
C) genetically different to the parent because of mitosis
D) genetically identical to the parent because of mitosis
Intereseko beste azterketa batzuk :
Science chapter 5 vocabulary - heredity
Introduction to genetics
Dna the molecule
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