Which gene is added downstream from the left border to prevent unwanted vector DNA past the left border from being incorporated into transgenic plants.

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#Question id: 11822

#Unit 6. System Physiology – Plant

The rate-limiting step in the Ethylene biosynthetic pathway is____

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#Question id: 28171

#Unit 5. Developmental Biology

Which of the following statements is incorrect about specification of the cell ?

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#Question id: 12593

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland and MacArthur and Wilson's island biogeography principles to answer the following questions.

Which island would likely exhibit the most impoverished species diversity?

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#Question id: 29111

#Unit 8. Inheritance Biology

A plant with purple flowers is crossed with a plant with white flowers, and the F1 are self-fertilized to produce 105 F2 progeny with purple flowers and 45 with white flowers.

A scientist hypothesized that there are two genes with identical functions that control the dominant trait. The scientist also proposed that the two genes are not linked. The scientist carried out a chi-square test to test the hypothesis. Which one of the following options is the correct chi-square value obtained by the scientist?

TLS Online TPP Program

#Question id: 26440

#Unit 3. Fundamental Processes

Choose the correct statement 

a. Long patch repair system is accomplished by Lig1, FEN1, Pol ζ ε, and APE1 

b. Long patch repair system is accomplished by Lig3, FEN1, Pol ξ β ,APE1 & lyase action

c. Short patch repair system is accomplished by Lig3, FEN1, Pol  ξ β,APE1 & lyase action

d. Short patch repair system is accomplished by Lig1, FEN1, Pol ζ ε, , and APE1