The swim bladder is an organ in primitive fish from which the lungs of terrestrial vertebrates developed.
Answer the following statement true (T) or false (F)
False
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Which of the following mechanisms of genetic transfer was first observed by Lederberg and Tatum (1946) in Escherichia coli?
A. Transformation B. Transduction C. Conjugation D. All of the answers are correct
Cells active in secreting enzymes would likely exhibit a higher than usual amount of
a. osmosis. b. exocytosis. c. lipid bilayers in the plasma membranes. d. endocytosis. e. receptor proteins.
In the following prokaryotic DNA sequence, label the highlighted regions. Using the prokaryotic DNA sequence above, describe the relationship between the highlighted regions and how mutations in each region may affect gene expression
What will be an ideal response?
DNA sequences called ____ increase the rate of RNA synthesis after initiation of transcription
a. promoters b. TATA boxes c. silencers d. enhancers e. regulators