Explain the difference between transcription and translation and how the processes differ in bacteria and eukaryotes
What will be an ideal response?
Answer: Transcription is the process in which mRNA transcripts are synthesized from DNA, whereas translation uses RNA as a template to synthesize peptides (or proteins). Transcription and translation occur simultaneously in the cytoplasm in bacteria, but in eukaryotes transcription occurs in the nucleus and translation takes place in the cytoplasm and endoplasmic reticulum. Transcripts are not significantly modified in bacteria before translation begins, but significant modification of mRNA occurs in eukaryotes before translation can begin. Eukaryotic mRNA contains introns that must be removed before translation. Capping and poly-A tail addition must also occur for the mRNA to be exported from the nucleus and translated in eukaryotes.
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Proteins are made in the ____________________, but are present in all parts of the cell
Fill in the blank(s) with correct word
TPA, or tissue plasminogen activator, is a compound sometimes given to a person suffering from a heart attack. Why would a compound that apparently activates plasminogen be useful in treating a heart attack?
What will be an ideal response?
Your health care agent cannot ________
A) be any other person but your physician B) make health care decisions for you C) be younger than 12 but older that 18 years old D) be an employee of the health care provider unless he or she is a member of your family
Ergot, a fungus, contains a hallucinogenic drug that binds to serotonin receptors. The natural drug is most similar to ________
A) LSD B) morphine C) methamphetamine D) mescaline