B1 - You and your genes 0.0 / 5 BiologyCells, tissues and organsGCSEAll boards Created by: psychology1299Created on: 23-04-15 20:28 48251013679 Across 1. E.g Enzymes help with digestion by breaking down food molecules (10, 8) 6. Grow to form a new identical plant. (5) 7. Different forms of the same gene (7) 8. A short length of a chromosome. Control the development of different characteristics. Codes for proteins. (4) 9. A long molecule of DNA coiled up. Humans have 23 pairs (10) 10. Characteristics an organism displays (9) Down 2. Caused by a faulty recessive allele. Symptoms include chest infections, difficulty in breathing/digesting food. (6, 8) 3. Contains genetic material arranged into chromosomes. (7) 4. Caused by a dominant allele. Symptoms don't usually appear until after the age of 40 and include tremors, memory loss and poor concentration. (11, 7) 5. Genetically identical organisms with the same genes and alleles. (6)
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