Biology

How can DNA tests definitively identify individuals when many people have brown eyes or type A blood?

Data Analysis Which size DNA fragment did the child inherit from her mother?  37 mm 850bp Which alleged father, if any, can be definitively ruled out as the child’s biological father?  A.F. #2 Conclusions How are new molecules of DNA synthesized in living cells? What is the function of DNA?   DNA has genetic information […]

How can DNA tests definitively identify individuals when many people have brown eyes or type A blood? Read More »

If each individual has such a small amount of DNA in their cells, how do the bands on the gel contain enough DNA to be visible?

Data Analysis Which size DNA fragment did the child inherit from her mother?  37 mm 850bp Which alleged father, if any, can be definitively ruled out as the child’s biological father?  A.F. #2 Conclusions How are new molecules of DNA synthesized in living cells? What is the function of DNA?   DNA has genetic information

If each individual has such a small amount of DNA in their cells, how do the bands on the gel contain enough DNA to be visible? Read More »

what happened, and how could you avoid these issues in the future?

Experiment 3 Post-Lab Questions 1. What color are the Gram-positive bacteria after Gram staining? Gram-negative bacteria? (5 points) Gram-positive bacteria appear as dark purple or blue due to retaining the primary dye (Crystal Violet) in the cell wall. Gram-negative bacteria appear as red or pink due to decolorizing to accept the counterstain (Safranin). 2. What

what happened, and how could you avoid these issues in the future? Read More »

Did you experience any technical difficulties or atypical results during this experiment?

Experiment 3 Post-Lab Questions 1. What color are the Gram-positive bacteria after Gram staining? Gram-negative bacteria? (5 points) Gram-positive bacteria appear as dark purple or blue due to retaining the primary dye (Crystal Violet) in the cell wall. Gram-negative bacteria appear as red or pink due to decolorizing to accept the counterstain (Safranin). 2. What

Did you experience any technical difficulties or atypical results during this experiment? Read More »

discuss why it might be important for a researcher or a hospital technician to be able to differentiate between Gram-positive and Gram-negative bacteria.

Experiment 3 Post-Lab Questions 1. What color are the Gram-positive bacteria after Gram staining? Gram-negative bacteria? (5 points) Gram-positive bacteria appear as dark purple or blue due to retaining the primary dye (Crystal Violet) in the cell wall. Gram-negative bacteria appear as red or pink due to decolorizing to accept the counterstain (Safranin). 2. What

discuss why it might be important for a researcher or a hospital technician to be able to differentiate between Gram-positive and Gram-negative bacteria. Read More »

What are the advantages of performing a Gram stain vs. a simple stain for visualizing bacteria?

Experiment 3 Post-Lab Questions 1. What color are the Gram-positive bacteria after Gram staining? Gram-negative bacteria? (5 points) Gram-positive bacteria appear as dark purple or blue due to retaining the primary dye (Crystal Violet) in the cell wall. Gram-negative bacteria appear as red or pink due to decolorizing to accept the counterstain (Safranin). 2. What

What are the advantages of performing a Gram stain vs. a simple stain for visualizing bacteria? Read More »