<p>Name ______Date ______Biology 6.1 Chromosomes 1: How many cells are produced by a human body every day?</p><p>2: How many times in life does cell reproduction occur in living organisms?</p><p>3: What are gamates?</p><p>4: What happens to a cell's DNA when the cell divides?</p><p>5: Prokaryotes divide by what type of cell division?</p><p>6: What type of reproduction is it when a single parent passes exact copies of its DNA to its offspring?</p><p>7: List the 2 stages that Binary Fission occurs in.</p><p>8: Describe the process of binary fission.</p><p>9: Information encoded in DNA is organized into units called what?</p><p>10: What is a gene? How many genes are found in a single molecule of DNA?</p><p>11: What important role do genes play?</p><p>12: How is the information in DNA used when genes are being used?</p><p>13: As eukaryotic cells prepare to divide, what happens to the chromosomes.</p><p>14: Before the DNA coils up, it is copied. What are the two exact copies of the DNA called?</p><p>1 Name ______Date ______Biology 6.1 Chromosomes 15: The two chromatids of a chromosome are attached at a point called a ______. 16: What are somatic cells?</p><p>17: How many chromosomes does each somatic cell contain?</p><p>18: What are homologous chromosomes?</p><p>19: Where do the 2 sets of 23 chromosomes come from?</p><p>20: What is a cell called when it contains two sets of chromosomes?</p><p>21: How is a gamete cell different than a diploid?</p><p>22: What is it called when two haploid cells fuse? What is the process called of them fusing?</p><p>23: Is the number of chromosomes the same in all species?</p><p>24: Of the 23 pairs of chromosomes; how many pairs are autosomes? How many are the sex chromosomes?</p><p>25: Why is the sex/gender of an offspring determined by the chromosomes donated by the male?</p><p>26: What is a karotype?</p><p>27: What happens when an individual is born with an extra copy of chromosome 21?</p><p>28: Why is there greater risk for birth defects as a mother is older in age?</p><p>29: How can doctors check for possible birth defects in prenatal testing?</p><p>2</p>