Suppose that in another world, dna does not undergo semiconservative replication, but instead a conservative mechanism is used. in a repeat of the meselson and stahl's experiment, bacterial cells that are grown in 15n medium for many generations then transferred to 14n medium for two generations will have the following distribution of dna molecules in a cscl gradient

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.

whats the drop down answers ?

explanation: