When are archenteron and blastopore formed?

1

For what the parabolic dishes are used?

523

Which bacteria do not have a lipopolysaccharide outer layer, but do have teichoic acids attached to their cell walls gram positive or gram negative?

1587

How can you determine the reaction, taking place at constant pressure delta (h)?

629

Can you provide an overview of the properties and characteristics of Protactinium and its placement in the periodic table?

129

How florence flask is used?

478

What is pascal s principle?

560

How much can transient transfection expected from Lipofectamine 2000(Invitrogen)?

1831

Replicon company exam papers

440

My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1101

On what structural level of the enzyme (primary, secondary, tertiary, or quaternary) does the enzyme-substrate interaction depend?

603

Give five examples each of plants that have lateral and that have fiberous roots?

1512

How is air sterilized?

622

In cleared and stained root material you have seen structures that appear to be empty sacs in the epidermal cells with ostioles that exit to the soil. Which division are these fungi likely to be from?

1585

Give lewis dot structure for HBrO4?

9256