You see a plant stem wrapped around a telephone pole, spiraling upward. This plant is demonstrating:

A) photoperiodism. B) thigmotropism. C) phototropism. D) geotropism.


Answer: B

Biology & Microbiology

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Biology & Microbiology

In some fruit flies, an inversion involving the white-eyed locus (w) moves the w+gene from one end of the X chromosome to a location nearer to the centromere. Flies with a w+ or w+/w genotype are normally expected to have red eyes

However, in flies with the inversion, the eyes are mottled red and white. Explain why.

Biology & Microbiology

Salmonella (lactose NON-fermenter &hydrogen sulfide producing bacteria) growing on the Salmonella-Shigella Agar will appear as

A. Clear colonies with have black centers due to precipitation of iron salt B. Clear or amber colonies C. Blue-black colonies D. Pink or red colonies E. Blue-black colonies with green metallic sheen

Biology & Microbiology

You have been asked to construct a physical map of the baboon genome. What would be helpful in this task?

A. gene linkage data B. microarrays and SAGE C. BLAST and ENCODE data     D. chromosome maps and STSs

Biology & Microbiology