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TLS Online TPP Program

#Question id: 7306

A plant scientist was hired by a greenhouse operator to devise a way to force iris plants to bloom in the short days of winter. Iris normally blooms as a long-day (short-night) plant. Which of the following has the best chance of creating iris blooms in winter?

#SCPH28 | Zoology
  1. Artificially increase the period of darkness in the greenhouse.
  2. Increase the temperature to more closely follow summer temperatures.
  3. Alternate four hours of darkness with four hours of light repeatedly over each 24-hour period.
  4. Interrupt the long winter nights with a brief period of light.
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TLS Online TPP Program

#Question id: 8691

#SCPH05 I Biotechnology

Use the following information to answer the question.



Applying the principle of parsimony to the trait "ability to fly," which of the two phylogenetic trees is better?
TLS Online TPP Program

#Question id: 4947

#SCPH06 I Botany

The first genes on Earth were probably
TLS Online TPP Program

#Question id: 10588

#SCPH28 | Zoology

Following is survival ship curve of species


Which of the following is correct?


TLS Online TPP Program

#Question id: 3653

#SCPH01 Biochemistry

Cyclobutane pyrimidine dimers are formed by -------------from adjacent pyrimidines on one strand by cyclization of the double-bonded C5 and C6carbon atoms of each base to give a cyclobutane ring.
TLS Online TPP Program

#Question id: 2083

#SCPH01 Biochemistry

Sphingolipids are considered amphipathic glycolipids if: