Решение #
1. a long double spiral, consists of segments
2. physical, physiological and behavioural characteristics of a living being
3. yes
4. genetically modified plants can produce more crops;
sheep Dolly was created as a clone, genetically altered mice were created and they are much stronger and healthier than "natural" mice: however, the question is still open. Some people think that those experiments can't be called successful as nobody knows what they will bring to people — good or harm.
5. Genetic engineering can alter plants in order to make them bigger, their fruit can be tastier, and they can have longer shelf life.