What is the diameter of a nucleosome?
What will be an ideal response?
10 nm
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One botulinum toxin produced by the bacterium Closteridium botulinum prevents microfilaments from forming in affected cells. If a Physarum cell were exposed to that chemical, would you expect to see cytoplasmic streaming? Explain
What will be an ideal response?
What patterns in a pedigree characterize a trait determined by the mitochondrial genome?
A. All offspring of an affected female show the trait. B. Males are never affected. C. Males never transmit the trait to their offspring. D. All offspring of an affected female show the trait, and males are never affected. E. All offspring of an affected female show the trait, and males never transmit the trait to their offspring.
Micro RNA therapy is based on the premise that
A. miRNA molecules function to regulate gene expression, usually by initiating transcription; an over-production of miRNA can be replaced thereby promoting necessary protein production. B. miRNA molecules function to regulate gene expression, usually by promoting translation; a non-functional miRNA can be repaired thereby reducing unwanted protein production. C. miRNA molecules function to regulate protein production, usually by inhibiting translation; a hyperactive miRNA can be replaced thereby reducing unwanted proteins. D. miRNA molecules function to regulate gene expression, usually by inhibiting transcription; a non-functional miRNA can be replaced thereby reducing unwanted protein production.
If a human who is a tongue roller (T) and has unattached ear lobes (E) marries a person who cannot roll their tongue and has attached earlobes, could they produce an offspring that was also a non-tongue-roller with attached earlobes? What would be the genotype of the first parent? The second parent?
A. no; TTEE; ttee B. yes; TtEe; ttee C. yes; TtEE; ttEe D. unable to determine from the information given