Biology 3

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Across
  1. 2. An organism’s genetic makeup for a particular trait
  2. 3. process in eukaryotic, sexually-reproducing animals that reduces the number of chromosomes in a cell before reproduction
  3. 9. The DNA in a cell
  4. 13. Offspring are EXACT GENETIC COPIES of parent
  5. 15. The division of the cytoplasm to the two genetically-identical cells.
  6. 16. The actual division of genetic material (DNA) to produce two genetically-identical cells.
  7. 18. The equal division producing 2 identical cells from a parent cell
  8. 20. The general appearance of complete sets of chromosomes
  9. 22. When neither allele is completely dominant and the F1 have a phenotype somewhere in between the parents
  10. 23. A mass of genetic material composed of DNA and proteins that condense to form chromosomes during eukaryotic cell division
  11. 24. A gene that can have multiple phenotypic effects
  12. 25. The life of a cell from the time it is first formed from a parent cell until its own division into 2 daughter cells
Down
  1. 1. The phenotypic expression of a gene at one locus alters that of a gene at a second locus
  2. 4. Offspring are UNIQUE due to different combinations of genes being inherited from 2 parents
  3. 5. An organized package of DNA found in the nucleus of the cell
  4. 6. The process of forming a double-stranded nucleic acid from two complementary strand s of DNA (or RNA)
  5. 7. An organism that has a pair of identical alleles for a particular trait (True Breed)
  6. 8. Breeding an organism of unknown genotype with a recessive homozygote
  7. 10. When 2 gametes meet, then restores the DIPLOID, or 2n number of chromosomes per cell
  8. 11. Cells that have a nucleus enclosed within the nuclear membrane and contain membrane-bound organelles
  9. 12. The 2 alleles each affect the phenotype in separate, distinguishable ways.
  10. 14. The reproduction of cells
  11. 17. An organism that has a pair of 2 different alleles for a particular trait (Not a True Breed)
  12. 19. An organism’s observable appearance particular trait
  13. 21. The reproductive cells (eggs & sperm) that transmit genes fromone generation to the next