Match the following:

A. DNA polymerases	i. Alkaline phosphatase	a. RNA-dependent DNA polymerase, used in cDNA synthesis
B. Reverse transcriptase	ii. T4 DNA ligase	b. Thermostable DNA polymerase used in PCR
C. Ligases	iii. AMV-RT	c. Removes 5'-phosphates from DNA and RNA
D. Phosphatases	iv. Taq DNA pol	d. Links 5'-phosphate and 3'-hydroxyl ends via phosphodiester bond

#Question id: 11118

#Biochemistry

The amount of air that can be forcibly exhaled after a tidal expiration is about:

#Question id: 11119

#Biochemistry

Which one of the following is NOT true of inspiration

#Question id: 11275

#Environmental Science

Consumption efficiency is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level which of the following are correct statement ?

A.Consumption efficiencies higher in  forests than grassland

B-In aquatic ecosystems consuption efficiencies of hervivore are greater than terrestrial hervivore

C- Consumption efficiencies for carnivores are typically higher than those of herbivores

D-Primary production consumption is increased where it is high in nutrients such as nitrogen and phosphorus

#Question id: 11276

#Environmental Science

Following statement regarding efficiency at different tropic level for secondary production?

A-high production efficiency individual able to survive at little food

B-production efficiency decrease toward increase tropic level 

C-aquatic herbivore is more efficient grazer than terrestrial grazer

D- Carnivore assimilation efficiency appear to average around 10%

Which above combination are correct?

#Question id: 11537

#Biochemistry

Testosterone is an example of a chemical signal that affects the very cells that synthesize it, the neighboring cells in the testis, along with distant cells outside the gonads. Thus, testosterone is an example of ________.

 I) an autocrine signal

 II) a paracrine signal

 III) an endocrine signal

#Question id: 11537

#Zoology

Testosterone is an example of a chemical signal that affects the very cells that synthesize it, the neighboring cells in the testis, along with distant cells outside the gonads. Thus, testosterone is an example of ________.

 I) an autocrine signal

 II) a paracrine signal

 III) an endocrine signal