Which of the following enzymes are produced by microorganisms on an industrial scale?
A. Keratinase
B. Pectinase
C. Cellulase
D. Amylase
E. All of the choices are correct.
Answer: E
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Which of the following traits appeared at point 4 on the the phylogeny above?
A. bulk transport B. gap junctions C. cell signaling D. adhesion E. differentiation of distinct cell types
This type of tissue provides the primary support and strength in the shoot system
a. dermal tissue b. epidermal tissue c. cortical tissue d. parenchyma e. vascular tissue
In ____, a pair of nonidentical alleles affecting
two phenotypes for a given trait are both expressed at the same time in heterozygotes. a. pleiotropy b. polygenic inheritance c. complete dominance d. codominance e. a multiple allele system
The role of the antenna complex in a photosystem is to
A. capture photons from sunlight. B. transfer excited electrons to the primary electron acceptor. C. generate glucose. D. generate NADPH.