Genetics Vocabulary

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Across
  1. 1. A special type of cell division of germ cells in sexually-reproducing organisms used to produce the gametes, such as sperm or egg cells
  2. 4. A mutation in which a part of a chromosome or a sequence of DNA is lost during DNA replication
  3. 8. One of two or more versions of a gene
  4. 10. The study of heredity
  5. 12. Derive genetically from one's parents or ancestors
  6. 15. The changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations
  7. 17. A type of grid that can indicate all the possible outcomes of a genetic cross
  8. 18. Comprised of sugar and phosphate backbone and A,T, C, G base pairs; located in the nucleus of each cell
  9. 20. A section of DNA that codes for a specific trait
  10. 23. A compound that is one of the four constituent bases of nucleic acids; it is paired with adenine in double-stranded DNA
  11. 24. The process in which new organisms are created by combining the genetic information from two individuals of different sexes
  12. 25. The passing on of genetic information(physical or mental characteristics) from one generation to another
  13. 28. The complete set of genes or genetic material present in a cell or organism
  14. 29. 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. 2. The expression of dominant alleles results in a blended phenotype
  2. 3. A compound that is one of the four constituent bases of nucleic acids, it is paired with guanine in double-stranded DNA
  3. 5. A type of mutation where one base pair is replaced by a different base pair
  4. 6. A compound that is one of the four constituent bases of nucleic acids, it is paired with cytosine in double-stranded DNA
  5. 7. A pair of matching alleles
  6. 8. Involves a single parent, and results in offspring that are genetically identical to each other and to the parent
  7. 9. The genetic makeup of an organism
  8. 11. Both dominant alleles are expressed
  9. 13. A genetically determined characteristic or condition
  10. 14. Diversity in gene frequencies among individuals or populations
  11. 16. Discovered the basic principles of heredity
  12. 17. The physical expression of an organism's traits
  13. 19. An allele that does not produce a characteristic effect when present with a dominant allele, expressed only when the determining allele is present in the homozygous condition
  14. 21. A compound that is one of the four constituent bases of nucleic acids, it is paired with thymine in double-stranded DNA
  15. 22. A pair of genes where one is dominant and one is recessive
  16. 26. A threadlike structure of DNA coiled around proteins. Found in the nucleus of most living cells and carrying genetic information in the form of genes
  17. 27. An allele that expresses its phenotypic effect even when heterozygous with a recessive allele