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Casein is a major protein found in mammalian milk - VCE - SSCE Biology - Question 24 - 2014 - Paper 1
Question 24
Casein is a major protein found in mammalian milk. When the mammals are producing milk, the pathway for the production of casein can be represented as shown in the ... show full transcript
Worked Solution & Example Answer:Casein is a major protein found in mammalian milk - VCE - SSCE Biology - Question 24 - 2014 - Paper 1
Step 1
C. The hormone prolactin allows for the expression of the casein gene.
Answer
From the diagram, it is clear that prolactin inactivates ribonuclease, allowing for the stability of the casein mRNA, which is necessary for synthesizing casein protein. This indicates that prolactin is crucial for activating the casein gene, thus supporting the assertion that it facilitates the expression of the casein gene.