F215 Control, Genomes & Environment

1. All the living organisms and all the non-living components in a specific habitat and their interactions. (9)
5. A directional growth response in which the direction of the response is determined by the direction of the external stimulus. (7)
6. Living organisms that feed on other living organisms. (8)
7. An alternative version of a gene. (6)
8. Characteristic in which the allele responsible is expressed in the phenotype even in those with heterozygous genotypes. (8)

2. Involves protecting areas of land, as yet unused by humans in their "untouched" form (12)
3. A characteristic where both alleles contribute to the phenotype. (10)
4. Genes for different characteristics that are present at different loci on the same chromosome are linked. (7)
9. Observable characteristics of an organism. (9)
10. The code is DNA; instructions for assembling polypeptides; the sequence of base triplets determines the sequence of amino acids/primary structure, in the polypeptides. (7, 4)

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