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

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

____ is a mineral. 

A. Water B. Sodium C. Ascorbic acid D. Niacin

Biology & Microbiology

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

Biology & Microbiology