Chemotaxis is made possible by help of:
A. Pili
B. Cilia
C. Quorum sensing
D. Flagella
Ans: D. Flagella
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During the development of the vulva in Caenorhabditis, binding of ____ to its receptor initiates development into ____ cell. (Select all correct choices.)
A. EGF; a Type 1 B. EGF; a Type 2 C. Notch; a Type 1 D. Notch; a Type 2 E. EGF; an anchor
Human-caused disturbances of the ________ cycle may be contributing to global warming
A) hydrologic B) oxygen C) phosphorus D) carbon E) sulfur
In Thomas Hunt Morgan's experiments, males had white eyes but females did not. What cross could you perform with his flies to obtain white-eyed females?
A. cross the F1 offspring to each other B. cross an F1 female to a white-eyed male C. cross an F2 female with an F1 male D. cross an F2 female with a white-eyed male E. crossing either the F1 or F2 females with a white-eyed male will produce some white-eyed females
What is the maximum Lod score for linkage at this locus?
Linkage between a gene of interest and a DNA marker is being studied. A mating results in 19 parental and 1 recombinant offspring. A) 0.22 B) 1.1 C) 6.3 D) 11