What would be the most likely result if a scientist removes mitochondria from a human cell and attempts to grow them in culture?
A) The mitochondria originated from a prokaryotic cell, so the mitochondria will grow independently in culture.
B) Mitochondria require the products of nuclear genes to function, so the mitochondria will die soon after being removed from the cell.
C) The mitochondria will continue to produce ATP indefinitely only if a source of pyruvate is provided.
D) The mitochondria will grow more quickly in the presence of antibiotics that kill bacteria and reduce competition for resources with bacterial cells.
B) Mitochondria require the products of nuclear genes to function, so the mitochondria will die soon after being removed from the cell.
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The situation in which an active regulatory protein "turns off" gene expression is an example of
A) a mutation. B) positive control. C) negative control. D) constitutive gene elements. E) unique regulation.
The primary function of the endosperm is ____
a. protection b. reproduction c. growth d. nutrition e. water absorption
Name the substance that serves as the hereditary material in eukaryotes and prokaryotes
What will be an ideal response?
Down's syndrome in which there is an extra copy of chromosome 21 is an example of _______, while cystic fibrosis with a "T" taking the place of a "C" at nucleotide 1609 on chromosome 7 is an example of _______.
A. Chromosomal aberration; base substitution B. Chromosomal aberration; base insertion C. Base insertion; base substitution D. Base insertion; base insertion