Predict the level of transcription of the trp operon genes (low to high) in the presence of low levels of tryptophan in e coli cells being in an in-frame deletion of the 2 trp codons that are usually found in the leader peptide. a) middle-level transcriptionb) high transcriptionc) low transcriptiond) all the above

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

it is a learned trait

explanation:

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.