Genetics Final C

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Across
  1. 3. A specific and observable characteristic of an individual.
  2. 6. Type of cell division responsible for reducing the number of chromosomes in diploid cells to haploid numbers; results in gamete cells.
  3. 10. Stage in meiosis where homologous chromosomes line up and crossing over occurs.
  4. 12. "Builder" enzyme responsible for adding DNA or RNA nucleotides to the growing strand during DNA replication or transcription.
  5. 13. Last stage in cell division. Results in new daughter cells separated from each other.
  6. 16. Different forms of a gene.
  7. 19. Set of three tRNA nucleotides used to match with mRNA codons during translation.
  8. 20. Deoxyribonucleic acid.
  9. 21. Nitrogenous base that pairs with thymine in DNA or uracil in RNA.
  10. 23. Chromosomes that are similar in size and carry similar genes; one coming from each genetic parent.
  11. 24. Traits controlled by two or more genes are said to be _____.
  12. 25. Considered the Father of Modern Genetics because of his experiments with pea plants.
  13. 27. The specific genes an individual has for a trait.
  14. 28. Stage in meiosis where two cleavage furrows develop and four new nuclear membranes form.
  15. 29. Nitrogenous base that pairs with adenine in DNA.
Down
  1. 1. Stage in meiosis where chromosomes line up in the middle of the two newly created cells.
  2. 2. The sugar in the sugar-phosphate backbone of RNA.
  3. 4. Location within the cell where ribosomes translate mRNA into polypeptide strands.
  4. 5. Organelle responsible for translating mRNA into a polypeptide strand that will fold into a protein.
  5. 7. Proteins that associate with DNA to help pack and condense it.
  6. 8. This type of inheritance results in both traits being expressed, as in a speckled chicken
  7. 9. Cells produced during meiosis and used for reproduction.
  8. 11. Homologous chromosomes pair and trade genes. Helps maintain variety in sexually reproducing organisms.
  9. 14. Having two different alleles in a genotype. ex. Tt
  10. 15. Factors that determine an individual's characteristics that are passed from parents to offspring.
  11. 16. Stage in meiosis where homologous pairs of chromosomes are pulled away from each other to opposite poles of the cell.
  12. 17. A cell that contains both sets of homologous chromosomes.
  13. 18. Nitrogenous base that pairs with cytosine in DNA and RNA.
  14. 22. Enzyme responsible for unzipping DNA during replication.
  15. 26. When an organisms genetic material is changed.