Biology Questions

Leprosy is the disease which effects skin.

Nutritional genomics is a science studying the effects of food and food constituents on gene expression and the relationship between human genome, nutrition and health. It is also known as nutrigenomics. It also studies how genetic variations affect the nutritional environment.

Lysogeny can result in all of the following except Immunity to reinfection by any phage. Lysogeny means phage DNA is incorporated in Host cell DNA. 

Phlebotomy is the process of making an incision in a vein with a needle. The person who performs that is called as Phlebotomist.

Given below are tubes color for which test test which one is used is given clearly. They are ::

Grey-Top Tube - Potassium Oxalate. This tube is used primarily for glucose tolerance testing.

Lavender-Top Tube - EDTA: EDTA is the anticoagulant used for most hematology procedures. Its primary use is for the CBC and individual components of the CBC. The larger (6ml) tube is used for blood bank procedures.

Red-Top Tube - This tube has no anticoagulant and is used for many chemistry tests, drug levels, and blood bank procedures.

Green-Top Tube - Sodium Heparin or Lithium Heparin

Navy Blue-Top Tube - There are two general types - one with K2 EDTA and one with no anti-coagulant. This tube is used primarily for trace metal analysis.

Serum Separator Tube (SST®) - This tube contains a clot activator and serum gel separator. It has no anticoagulant and is used for many chemistry tests. It cannot be used for certain drug levels or any blood bank procedures.

Yellow-Top Tube - ACD (Sol. A or Sol. B).

Blue-Top Tube - Sodium Citrate (NaCitrate): This tube is primarily used for coagulation studies (PT and PTT). Complete filling of this tube is essential to obtain accurate results.