Which of the following is used to produce vaccines and antibiotics?

a. recombinant DNA technology
b. gel electrophoresis
c. genetic testing
d. gene therapy


a. recombinant DNA technology

Biology & Microbiology

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In general, a signal transmitted via phosphorylation of a series of proteins _____

A) results in a conformational change to each protein B) requires binding of a hormone to an intracellular receptor C) activates a transcription event D) generates ATP in the process of signal transduction E) occurs within the outer plasma membrane

Biology & Microbiology

What can we find in cells that are making large quantities of proteins?

a. numerous cilia b. numerous ribosomes c. numerous centrioles d. numerous chromosomes

Biology & Microbiology

A horse has a diploid number (2n) of 64 and a donkey has 2n = 62. The hybrid of these two species, mules, have 2n = 63 and are sterile. Why are mules sterile?

A) Mules cannot physically mate with each other. B) Horses are not able to form new species. C) Mules are not true hybrids. D) One chromosome is unpaired and fails to divide properly during meiosis. E) Mules cannot physically mate with horses and donkeys.

Biology & Microbiology

daughter cells are

What will be an ideal response?

Biology & Microbiology