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

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#Question id: 8929

#XL - R Botany

An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be

1. a clade.

2. a grade.

3. monophyletic.

4. paraphyletic.

5. polyphyletic.

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#Question id: 11317

#XL - T Zoology

Which of the following phenomena emphasizes the indirect effects of consumer-resource interactions extended through additional trophic levels of the community?

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#Question id: 19645

#XL - P Chemistry

The dihedral angle in the staggered conformation of C2H6 is

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#Question id: 2136

#XL - S Microbiology

When a bacterium such as E. coli is shifted from a warmer growth temperature to a cooler growth temperature, it compensates by:

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#Question id: 1072

#XL - T Zoology

After growth in tissue culture, the infected cells lyse and the virus may be harvested from