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Biological Sciences Interview Questions
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When s subunit dissociates from an initiated RNA polymerase, a) it can bind a core enzyme to reform holoenzyme. b) it hydrolyzes ATP until rebound by core enzyme. c) it leaves behind an elongating species complexed with Rho factor. d) it remains bound to the promoter consensus sequence.

 1 3000

The junction between the two helical portions of tRNA is stabilized by many non-standard base-base interactions between residues in the a) anticodon and CCA ends. b) helical stems of the D and Anticodon stems. c) loops of the Anticodon and Acceptor stem. d) loops of the TYC and D arms.

 1 3278

On the ribosome, mRNA binds ____; the peptidyl transferase reaction occurs ____. a) to the large subunit; on the small subunit. b) to the small subunit; on the large subunit. c) between the subunits; on the large subunit. d) between the subunits; on the small subunit.

 2 5040

According to the fluid mosaic model of cell membranes, which type of molecule spans the membrane from its inner to outer surface? a) cholesterol b) phospholipid c) protein d) triacylglycerol

PH.D Interview,

1 4681

When it functions as a "second messenger", cAMP a) acts outside the cell to influence cellular processes. b) acts "second in importance" to AMP. c) activates all cytosolic protein kinases. d) activates the cAMP-dependent protein kinase.

 1777

The reduction-oxidation (Redox) potentials of NADH and FADH2 show that the following reaction is spontaneous: a) FADH2 + NAD+ --> FAD + NADH b) FADH2 + NADP+ --> FAD + NADPH c) NADH + FAD --> NAD+ + FADH2 d) Reactions a) and b) are both spontaneous

 1 6997

The ATP synthase of bacteria is an Fl-like particle attached to the a) ends of proto-mitochondria. b) inner surface of the cell (or plasma) membrane. c) outer surface of the cell (or plasma) membrane. d) surface of protonic vesicles.

 1 3392

The yield of ATP/glucose unit in glycolysis with glycogen as the glucose source is a) 2.0 b) 2.5 c) 3.0 d) 4.0

 1 3185

Can DeCypher be used for protein struc-ture modeling?

 1679

Define COG and KOG ?

 1 6043

How to Insert Genomic DNA into yeast ?

 1538

What is Phantom Gene Sequence?

 1932

How to Draw a 3D structure of a Protein from its amino acid sequece?

 1 5902

How to Count number of nucleotide substitutions ?

 1794

What is the secondary structure of intron ?

 1671

Un-Answered Questions { Biological Sciences }

What three main parts make up the carpel of a plant?

540

why northern arizona university

930

What are the typical vegetation and the typical fauna of the tropical forests?

71

What are the two main types of endocytosis?

485

Explain what does a beaver build?

517




Explain the growth curve of S. pneumo ?

1605

What are adaptive features of halophytes?

2237

Explain what happens when the cell membrane or plasma membrane ruptures or breaks down?

571

Name the white blood cell which is typically known as the bodys first line of defense?

503

What is the super phosphate of lime?

737

Why algae Spirulina is called the food of the future?

1667

What is the function of csf?

575

What is the importance of genetics?

577

How is the neural tube formed?

1

What is the mode of action for quaternary ammonium compounds?

620

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