Which of the following is a lactic acid bacterium used in the production of food?
A) Aspergillus oryzae
B) Gluconobacter
C) Leuconostoc
D) Penicillium
E) Saccharomyces cerevisiae
C
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The tympanic membrane of mammals is also known as the:
A. oval window B. cochlea C. vestibular system D. eardrum
Which of these does not occur in a cell during the mitotic cell cycle?
A. Centromeres separate. B. Chromosomes line up in single file. C. Cytoplasm is divided. D. Sister chromatids pair up and join at the centromere. E. Two daughter nuclei are formed
Ribosomal subunits
a. come together in threes to form functional units. b. are composed of mRNA and structural proteins. c. are synthesized in the cytoplasm. d. converge with tRNA when mRNA is to be translated. e. are transcribed from the complementary strand of DNA that is used for tRNA transcription.
The ability to roll the edges of the tongue upward in a U-shape is considered to be an inherited trait. The standard assumption is that tongue-rolling is a dominant allele at a single gene locus. Which of the following would cast doubt on this assumption? Select all that apply.A) A student who can roll his tongue has both a mother and father who cannot.B) In a large research study, the majority of tongue-rollers were male.C) A research study with 1,000 participants reports that most non-tongue-rollers can learn to roll their tongues.D) A student who cannot roll his tongue has both a mother and father who can.
What will be an ideal response?