Which is the first factor to bind at the promoter of eukaryotic genes?

a. RNA polymerase

b. TFIIA

c. TFIIB

d. TFIID 

e. TATA box–binding protein

TLS Online TPP Program

#Question id: 3020

#Unit 2. Cellular Organization

During which phase of the bacterial growth curve does the total number of viable cells decline?

TLS Online TPP Program

#Question id: 23971

#Unit 8. Inheritance Biology

The phenotypic consequences of a deletion depend on which genes are located in the deleted region. If the deletion includes the centromere,

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#Question id: 11033

#Unit 7. System Physiology – Animal

The velocity of blood flow is the lowest in capillaries because ________.

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#Question id: 19097

#Unit 6. System Physiology – Plant

Erwinia is a pathogen that deploy__

a) Attacking Initial biotrophic phase and extensive plant tissue damage at later stages or even death

b) Intimate intracellular contact with plant cells and minimal plant cell damage

c) Releases pectic enzyme that dissolve the cell wall

TLS Online TPP Program

#Question id: 33482

#Unit 2. Cellular Organization

Find true and false statements

A. In general, mutations occur at the same rate in both exons and introns, 

B. Exon mutations are eliminated more effectively by selection.

C. Introns may more freely accumulate point substitutions and other changes.