Unit 9 Crossword (Uses terms from 1-8)

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Across
  1. 2. Gene mutation involving changes in one or few nucleotides
  2. 4. A group of three bases on a tRNA molecule that are complementary to an mRNA codon
  3. 5. Decoding of a mRNA message into a polypeptide chain
  4. 8. Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule
  5. 9. First and longest phase of mitosis. Chromosomes become visible and the centrioles dissolve the nuclear envelope.
  6. 10. Type of RNA that makes up the major part of ribosomes
  7. 14. Organelle found in cells of plants and some other organisms that capture sunlight and converts it into chemical energy.
  8. 15. Specialized cell involved with sexual reproducion
  9. 16. Mutation that shifts the reading of the genetic message
  10. 22. Granular material visible within the nucleus. Consists of DNA tightly coiled around proteins.
  11. 23. Second stage of mitosis. Chromosomes line up across the center of the cell.
  12. 25. Physical characteristics of an organism
  13. 27. mutation that involves the addition of one or more nucleotides into a segment of DNA
  14. 29. Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use.
  15. 30. Study of heredity
  16. 31. Principle that bonds in DNA can form only between adenine and thymine and guanine and cytosine
  17. 32. Change in DNA sequence that affects genetic information
  18. 34. A sequence of DNA that codes for a protein and thus determines a trait
Down
  1. 1. a type of mutation in which one or more copies of a DNA segment is produced
  2. 3. Process by which organisms maintain a stable internal environment.
  3. 5. A genetic change in which a piece of one chromosome breaks off and attaches to another chromosome
  4. 6. Type of RNA molecule that transfers amino acids to ribosomes during protein synthesis
  5. 7. Copying process in which a cell duplicates its DNA
  6. 11. RNA molecule that carries copies of instructions for the assembly of amino acids
  7. 12. a genetic change that occurs when one nucleotide in DNA is replaced by another
  8. 13. Three nucleotide sequence on messenger RNA that codes for a single amino acid
  9. 17. The third phase of mitosis. Chromosome pairs separate and move towards opposite ends
  10. 18. Fourth and final stage of mitosis. The cell splits into two and the chromosomes begin to decondense.
  11. 19. a genetic alteration where a part of a chromosome is missing
  12. 20. Genetic makeup of an organism
  13. 21. Has two of the same alleles
  14. 24. Change over time.
  15. 26. Has two different alleles
  16. 28. Monomer of nucleic acids. Composed of a 5-carbon sugar, nitrogenous base, and a phosphate group.
  17. 33. A sequence of DNA that codes and determines a trait