A riboswitch mechanism is known to regulate the transcription of genes involved in:
A. lactose metabolism.
B. vitamin B1 synthesis.
C. tryptophan biosynthesis.
D. arabinose metabolism.
B
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The diploid garden pea plant has 14 chromosomes. The haploid fungus Neurospora crassa has 7 chromosomes. Neither organism has separate male and female individuals. Therefore, the number of linkage groups in these two organisms is:
A. Garden pea has 14 linkage groups, and Neurospora has 7 B. Garden pea has 7 linkage groups, and Neurospora has 7 C. Garden pea has 8 linkage groups, and Neurospora has 8 D. Gardent pea has 15 linkage groups, and Neurospora has 8
One key to Mendel's success was choosing to observe ________ traits, which exhibit one of two possible phenotypes
Fill in the blank(s) with correct word
____ is a mineral.
A. Water B. Sodium C. Ascorbic acid D. Niacin
Historically, which of the following was instilled into the eyes of newborn infants to prevent gonococcal infections?
A. formaldehyde B. mercurochrome C. silver nitrate D. phenol E. triclosan