The production of beer, wine, and bread is possible because of the fermentative abilities of _____.

Fill in the blank(s) with the appropriate word(s).


Ans: yeasts

Biology & Microbiology

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The primer for retrovirus reverse transcription is a specific

A) tRNA encoded by the cell. B) tRNA encoded by the virus. C) nuclear tRNA. D) nuclear tDNA.

Biology & Microbiology

Species of Veillonella are always parasites of warm-blooded animals and are never found as part of the normal biota. 

Answer the following statement true (T) or false (F)

Biology & Microbiology

In human populations, inbreeding results in

A) fewer heterozygotes and more homozygotes. B) more heterozygotes and fewer homozygotes. C) about equal numbers of homozygotes and heterozygotes. D) only heterozygotes.

Biology & Microbiology

How do nastic movements differ from tropisms?

A. Tropisms are directional responses to directional stimuli; nastic movements are the same regardless of the direction of the stimulus. B. Nastic movements are slower than tropisms. C. Nastic movements happen after a stimulus, tropisms happen during a stimulus. D. Nastic movements are not reversible. E. Nastic movements only occur in the dark.

Biology & Microbiology