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TLS Online TPP Program

#Question id: 35547

Which of the following statements regarding photoperiodism in plants are correct?

#XL - R Botany
  1. Short-day plants flower only when the night is longer than a critical duration.
  2. Long-day plants can flower under continuous light conditions.
  3. Phytochrome is the primary pigment involved in photoperiodic perception.
  4. Day-neutral plants respond to changes in photoperiod.
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TLS Online TPP Program

#Question id: 3918

#XL - Q Biochemistry

Which of the following is true, concerning rho?
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.