Which of the following were challenges that had to be overcome to sequence the genome of wheat, Triticum aestivum? (Select all that apply)
A. Lack of advanced sequencing technology
B. Large genome size (~5 times as large as human genome)
C. High mutation rate of wheat genes
D. An abundance of repetitive DNA
E. Lack of interest/support in sequencing the genome
Ans:
B. Large genome size (~5 times as large as human genome)
D. An abundance of repetitive DNA
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A common resident of the rhizosphere that can enhance plant growth is ________.
A. Sphingomonas B. Azotobacter C. Erwinia D. Pseudomonas
Sulfate-reducing bacteria transfer electrons to
__________ in their environment. a. SO2 b. H2 c. H2SO4 d. S e. SO4
Phytochemicals are
a. essential for survival. b. produced in laboratories exclusively. c. not essential but can prevent some disorders. d. cofactors for cellulose degradation. e. none of these.
Enzymes accomplish effective catalysis by _______.
a) being present in such large amounts b) overcoming the activation energy barrier c) changing the thermodynamics of the reaction d) increasing the activation energy required