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TLS Online TPP Program

#Question id: 35161

The “one-cell spacing rule” in stomatal development means:

#XL - R Botany
  1. Two stomata are always separated by at least one non-stomatal cell
  2. Stomata always occur in pairs
  3. Patterning is regulated by positional signals from neighboring cells
  4. Guard cells never touch each other in a normal leaf epidermis
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TLS Online TPP Program

#Question id: 3919

#XL - Q Biochemistry

Most of the RNA polymerase activity in eukaryotic cells occurs in the
TLS Online TPP Program

#Question id: 3920

#XL - Q Biochemistry

The genes that encode proteins are transcribed by RNA polymerase __.
TLS Online TPP Program

#Question id: 3921

#XL - Q Biochemistry

Which observation is not evidence that supports the theory that mitochondria and chloroplasts originate from symbiotic bacteria?
TLS Online TPP Program

#Question id: 3922

#XL - Q Biochemistry

The σ70 subunit in E. coli RNA polymerase acts as a/an __.
TLS Online TPP Program

#Question id: 3923

#XL - Q Biochemistry

The transcription of __ RNA accounts for most of the transcriptional activity of a cell.
TLS Online TPP Program

#Question id: 3924

#XL - Q Biochemistry

Characteristics of ligands involved in transcription include: