Answer:
A,B and E
Explanation:
- I+: I refers to the lac repressor, the + indicates that the repressor is functional
- P+: P refers to the promoter region and the + indicates that the promoter is functional
- Oc: O refers to the operator region, but the Oc indicates that the operator is constitutive ie. that it is always on/ can't be turned off.
- Z-: Z refers to the LacZ gene which produces β-galactosidase. Z- indicates that this gene is non-functional
- Y+: Y refers to the LacY gene which produces the permease protein. Y+ indicates that this gene is functional
So based on the breakdown above:
- C is not true because the lac operon is an inducible system. The operator needs to be able to be repressed. In this case the operator is constitutive (always on) which is not the correct form.
- D is not true because Z-, no β-galactosidase is produced.
Only A, B and E apply.
35 ppt. That is how much salt is in sea water
The answer is; The genes must share the same control element
When multiple genes are expressly coordinately, this is referred to as synexpression. Such genes are expressed in coordination either because they code for protein subunits of a complex protein or their gene products are required in stoichiometric amounts.
Answer: True
Explanation:
This was a bacterial fermentation that produced acetone, needed for cordite (explosive) manfacture. Species of Clostridium were used.
Sweating (to try to remain cool) and increased heart rate (to help deliver oxygen to muscles faster)
