A heterozygote possesses a phenotype that is intermediate between the homozygous dominant and homozygous recessive phenotypes. This is most likely an example of ________
A. lethal alleles
B. incomplete dominance
C. gene dosage
D. sex-influenced inheritance
B
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Escherichia coli is a good indicator of fecal contamination of water supplies.
Answer the following statement true (T) or false (F)
The common fungus Polyporus squamous forms large shelf-like structures that project from the lower portion of dead trees.
Answer the following statement true (T) or false (F)
Peritrichous bacteria make a run when
a. the flagella turn clockwise and become bundled. b. the flagella turn counterclockwise and separate. c. the flagella turn counterclockwise and become bundled. d. the flagella turn clockwise and separate.
Major types of recombination include all of the following EXCEPT
A) conjugation. B) transcription. C) transformation. D) transduction.