Genetics Key Words 5.0 / 5 based on 3 ratings ? BiologyDNA, genetics and evolutionA2/A-levelOCR Created by: Zoe HartCreated on: 22-12-13 15:06 9653218410 Across 1. A characteristic in which the allele responsible s only expresed in the phenotype if there is no d******* allele present. (9) 4. A length of DNA that codes for a specific polypeptide (4) 5. Strands of replicated chromosome joined by a centromere and separate in cell division to become individual chromosomes (9) 8. One of two or more alternative forms of a gene (6) 10. Change to the sequence of nucleotide bases in DNA (8) Down 2. A pair of synapsed homologous chromosomes during Prophase and Metaphase I (8) 3. The point at which a gene is located (5) 5. The point where homologous chromosomes attach when crossing over (7) 6. Two different alleles, showing the same phenotype, but could be any combination (12) 9. Nuclear division to form four genetically different haploid cells (7)
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