Genetics part 2

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Across
  1. 4. A diagram of family history that uses standardized symbols
  2. 5. the cells in the body other than sperm and egg cells
  3. 6. a segment of DNA that contains instructions for making proteins
  4. 7. a pattern of inheritance where one allele masks another allele for a single gene
  5. 9. a type of inheritance in which two versions (alleles) of the same gene are expressed separately to yield different traits in an individual.
  6. 13. a single cell formed when a sperm cell fertilizes an egg cell,
  7. 14. Any change in the DNA sequence of a cell.
  8. 16. a cell that contains only one set of chromosomes
  9. 17. One of two or more versions of a genetic sequence at a particular region on a chromosome
  10. 18. a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.
  11. 19. a trait that is expressed only when genotype is homozygous
Down
  1. 1. having inherited the same versions (alleles) of a genomic marker from each biological parent.
  2. 2. a reproductive cell of an animal or plant.
  3. 3. the union of two gametes
  4. 8. having different alleles for a particular trait
  5. 9. A structure found inside the nucleus of a cell.
  6. 10. a type of cell division where a single cell divides into two genetically identical daughter cells
  7. 11. the complete genetic makeup of an organism
  8. 12. a cell or organism containing two complete sets of chromosomes, with one set coming from each parent
  9. 15. an individual's observable traits, such as height, eye color and blood type