The scientific document you have studied is adapted from articles in New Scientist and the Journal of Consumer Protection and Food Safety. Use the information from the scientific document and your own knowledge to answer the following questions. Explain how a single-celled embryo of a zebrafish, injected with the colour producing gene, could develop into an adult with red skin cells (paragraphs 14, 15 and 17). (3) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................
Exam No：wbi15-01-que-20240608 Year：2024 Question No：8(f)
Answer:
An explanation that includes three of the following points:
- (embryo cells) divide by mitosis (1)
- (cell) differentiation occurs (1)
- gene is \{switched on / activated by transcription factors\} (in skin cells) (1)
- \{transcription / translated / protein synthesis\} occurs (1)
- (resulting in) production of red \{pigment / protein\} (1)
- (embryo cells) divide by mitosis (1)
- (cell) differentiation occurs (1)
- gene is \{switched on / activated by transcription factors\} (in skin cells) (1)
- \{transcription / translated / protein synthesis\} occurs (1)
- (resulting in) production of red \{pigment / protein\} (1)
Knowledge points:
CH8 – Coordination, Response and Gene Technology
Solution:
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