Answer:
"One gene, one enzyme" hypothesis says that one gene encodes for one protein which performs a specific function in the living organisms. This study, published in 1941, was one of the most influential studies of the age and for that, Beadle and Tatus also received Nobel Prize.
However, in recent years, it has been well studied that many enzymes are encoded by more than one gene (or cluster of genes). There are some enzymes that are produced by a single gene; nevertheless, it has been concluded that the hypothesis is not completely true. But it is also important to say that this study set the baseline for the study of many biochemical processes in living organisms.
Answer:
cognitive
Explanation:
The symptoms of depression are characterized into three broad groups
1. Cognitive – The common symptoms observed include constant negative thoughts, pessimism, feeling guilty for all bad happenings around them, thinking of ending their life
2. Behavioral – These include behavioral changes occurring in a person facing depression such as poor hygiene, inefficiency in work, constant crying, anti-social thoughts and behaviour and low energy
3. Emotional – Under this head a person feel sad, lonely, worthless and hopeless.