Genetic Terminology

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Across
  1. 2. The genetic code for an individual contains two different alleles for the gene concerned. For example: Bb, XY, Tt.
  2. 5. A length of DNA that codes for one protein.
  3. 6. The genetic code for an individual contains two identical alleles for the gene concerned. For example: BB, bb, XX, tt.
  4. 7. A technique by which pollen from a plant is used to fertilise ovules in flowers of the same plant
  5. 9. The genetic make-up of an individual (for example, BB, Bb, bb).
  6. 10. The allele that is hidden when a dominant allele is present (shown by a lower case letter – for example, b).
Down
  1. 1. A length of DNA that contains many genes, found in the nucleus and visible during the cell division.
  2. 3. A variety of one gene.
  3. 4. The way the gene is seen or expressed in an individual (for example, blue eyes, curly hair, red flowers etc).
  4. 8. The allele that shows in the phenotype whenever it is present (shown by a capital letter – for example, B).