1. Plants originated in the water, then moved to land. In order to do this, plants had to evolve a number of important structures that enabled their survival on land. Describe the structural changes that had to happen to support this move and discuss the functional importance of each of […]

Many infectious diseases are becoming difficult to treat because of bacterial resistance to antibiotics. Populations of bacteria can become resistant when they are exposed to an antibiotic. What is the best general explanation for how this occurs? a) The antibiotic induces specific mutations in some of the bacteria that make […]

In a mutant strain of E. coli, a tRNA that recognizes the codon 5′ CUG 3′ of normal cells has a point mutation so that it now recognizes the codon 5′ GUG 3′ while still carrying its original amino acid. Surprisingly, a missense mutation found in a protein-coding gene is […]

Question: How we can use nutri-genomics to overcome free radical damage in DNA in order to prevent a biological system against to cancer? Question: Would a deficiency in hemoglobin be more detrimental to oxygen transport or carbon dioxide transport? Explain. Question: The selective estrogen receptor modulators (SERMs) selectively stimulate or […]