They damage proteins and DNA.
Explanation:
Aldehydes damage proteins and DNA of microbial organisms. They typically inhibits the growth of microbial organisms by causing alteration to proteins and DNA.
- They cause damage to proteins ans are used as disinfectants.
- The aldehydes generally cross link functional groups in proteins and short changes their structures.
- Formalin is one example that is used to arrest bacteria growth and it is an aldehyde.
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Silent Mutation causes no change in the protein because no amino acids have been changed
The nucleus is the control center of the cell.
Answer:
c) The membrane phospholipids of cold-adapted organisms will have more unsaturated hydrocarbon tails
Explanation:
The cell membranes are fluid, the lipids that compose it have some movement. In cold temperatures that movement is reduced and the membrane becomes more rigid. To overcome this, organisms that live in cold environments have certain adaptations that keep the membrane fluid.
One of those adaptations is to contain more unsaturated phospholipids. Unsaturated phospholipids contain double bonds that introduce “kinks” in the hydrocarbon tails, which interfere with the lipid's packing and reduce rigidity.