What is a reasonable length for an RNA primer in E. coli?

TLS Online TPP Program

#Question id: 10562

#Unit 6. System Physiology – Plant

The direction and rate of water flow across a membrane are determined by

TLS Online TPP Program

#Question id: 2762

#Unit 2. Cellular Organization

After a diagnostic sequencing analysis of an individual’s DNA, you find that this person has a number of microsatellite triplet repeats within a region of their huntingtin gene. Specifically, these CAG repeats code for long stretches of:

TLS Online TPP Program

#Question id: 2157

#Unit 2. Cellular Organization

Which of the following is not a metabolic derivative of cholesterol?

a. dolichol                  

b. vitamin D               

c. bile acids    

d. v-SNARE molecules                     

e. NSF

TLS Online TPP Program

#Question id: 12409

#Unit 6. System Physiology – Plant

The Chemical Structure of ABA Determines Its Physiological Activity, 15 carbon compound 

a) The orientation of the carboxyl group at carbon 2 determines the cis and trans isomers of ABA. Nearly all the naturally occurring ABA is in the cis form

b) S enantiomer is the natural form; commercially available synthetic  ABA is a mixture of approximately equal amounts of the S and R forms.

c) The S enantiomer is the only one that is active in fast responses to ABA, such as stomatal closure

d) In long-term responses, such as seed maturation, only R-enantiomers are active

e) In contrast to the cis and trans isomers, the S and R forms cannot be interconverted in the plant tissue

Which of the following is the correct prediction about the active form  of ABA?

TLS Online TPP Program

#Question id: 28083

#Unit 6. System Physiology – Plant

What will be quantum yield when 1O2 as a photochemical product is formed per 10 Quanta absorbed