BASIC CONCEPTS IN GENETICS

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Across
  1. 4. The process of copying DNA before cell division
  2. 5. A segment of DNA that codes for a trait.
  3. 7. The "rungs" of the DNA ladder are made of nitrogen
  4. 8. Physical traits expressed from genes
  5. 12. When one allele masks or overrides the effect of another.
  6. 13. An allele that is hidden or masked when a dominant allele is present.
  7. 14. The double ____ structure describes DNA’s shape
  8. 15. Threadlike structures in the nucleus carrying genes.
  9. 16. Having two identical alleles for a trait.
Down
  1. 1. Different versions of a gene.
  2. 2. Genetic makeup of an organism
  3. 3. RNA type that carries instructions from DNA to ribosomes
  4. 6. Location inside the cell where chromosomes are found
  5. 9. Building blocks of DNA: sugar, phosphate, and base.
  6. 10. RNA that helps in protein synthesis by bringing amino acids.
  7. 11. The molecule that holds genetic information
  8. 14. Having two different alleles for a trait.