genetics and heredity

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Across
  1. 2. being or produced by a form of a gene that prevents or hides the effect of another form
  2. 3. containing two complete sets of chromosomes, one from each parent
  3. 4. diagram that shows the occurrence and appearance of phenotypes of a particular gene
  4. 8. fusion of gametes to give rise to a new individual organism or offspring and initiate its development
  5. 10. a relationship between two versions of a gene
  6. 13. any cell of the body except sperm and egg cells
  7. 16. process where a single cell divides twice to produce four cells containing half the original amount of genetic information
  8. 17. a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes
  9. 18. a change in a DNA sequence
  10. 19. having a single set of unpaired chromosomes
  11. 20. a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus
Down
  1. 1. a naturally occurring, extremely complex substance that consists of amino acid residues joined by peptide bonds
  2. 5. heritable characteristics controlled by genes that are expressed in offspring only when inherited from both parents
  3. 6. having the same relation, relative position, or structure
  4. 7. a diploid cell resulting from the fusion of two haploid gametes
  5. 9. living organisms whose genetic material has been artificially manipulated in a laboratory through genetic engineering
  6. 11. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
  7. 12. threadlike structure of nucleic acids and protein found in the nucleus of most living cells
  8. 14. a mature haploid male or female germ cell
  9. 15. a self-replicating material that is present in nearly all living organisms