Genetics crossword

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Across
  1. 2. Genotype with one dominant and one recessive allele
  2. 7. Physical appearance of an organism
  3. 8. Branch of biology that studies heredity
  4. 9. determine offspring ratio and percentage
  5. 10. Form of a gene that may not show even if it is there
Down
  1. 1. Long rod-shaped bodies in the nucleus
  2. 3. 2 genes alike
  3. 4. Segments of chromosomes that determines traits
  4. 5. The study of how traits are passed
  5. 6. Diploid cell formed when sperm fertilizes the egg