Biology terms

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Across
  1. 3. A chart that geneticists use to trace the presence or absence of a trait in a number of generations.
  2. 7. The physical expression of an organism's gene.
  3. 8. To fertalize a flower with the pollen from another flower.
  4. 9. Having the same two alleles at the same position on homologous chromosomes.
  5. 10. Mating an organism that has the dominant phenotype but and unknown genotype with another plant that has the homozygous recessive phenotype.
  6. 11. One of a pair of genes that have the same position on homologous chromosomes.
  7. 13. The genetic makeup of an individual organism.
Down
  1. 1. Having two different alleles at the same position on homologous chromosomes.
  2. 2. The characteristic that is expressed even in the presence of the recessive genes.
  3. 4. The characteristic that is expressed only in the homozygous recessive condition.
  4. 5. A genetic cross that deals with only one set of characteristics.
  5. 6. Fertalization from the same flower.
  6. 7. A diagram used to visualize genetic crosses.
  7. 12. The specific location of a gene on a chromosome.