In sickle cell anemia, a hereditary disease, there is substitution of one amino acid by other in one of the four-polypeptide chains of hemoglobin. In this case, are all of the structural levels of the protein modified?

1278

Genetic load means ?

1864

How to calculate mean doubling times for adhesion cells ?

1935

What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids?

284

Explain contamination of cell culture by another cell type ?

1932

Explain how are ecological interactions classified?

287

How to do Petrifilm?

2000

What is formula for photosynthesis?

935

In 3d-series, which two elements exhibit an anomalous configuration?

1075

What is the property of Alkaline earth metal Ions?

1100

What is yolk sac? How is it formed?

1

How does the intensity of facilitated diffusion vary in relation to the concentration of the moved substance? What is the limiting factor?

904

Explain about the Vi anten of salmonella ?

2433

"Tell me about a job that you found particularly satisfying. What did you like about it?

3179

Concerning the presence of nucleus what is the difference between animal and bacterial cells?

967