The function of a single fruit fly gene was inactivated completely by mutation. A fruit fly with this mutation did not have legs. Which is a reasonable conclusion to make based on this information?
A) The normal gene function is required for viability in fruit flies.
B) The normal gene function is required for leg formation in fruit flies.
C) The normal gene is unlikely to regulate other genes involved in leg formation.
D) The normal gene is likely required in fruit flies for formation of legs, wings, and antenna.
B) The normal gene function is required for leg formation in fruit flies.
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The Pax6 gene
A. is a master control gene for eye development. B. codes for a protein that controls the expression of many other genes. C. mutant can cause aniridia in humans. D. is a homolog to the eyeless gene in Drosophila. E. All of the choices are correct.
Populations can be described in terms of their diversity and stability
Indicate whether the statement is true or false.
The alkylating agent nitrosoguanidine adds methyl groups to nucleotide bases and is repaired by which enzyme that removes the added methyl group and restores nucleotides to their normal form?
What will be an ideal response?
What was the Avery et al.'s (1944 ) contribution to the understanding of molecular biology?
What will be an ideal response?