Biology Essays

This lab must be typed. TitleDNA Fingerprinting PurposeWhy are we doing this lab Background 1.What are restriction enzymes 2.When added to a DNA sample, what do restriction enzymes do 3.What do you call the specific sequence of bases the enzyme is searching for 4.What is a restriction digestion 5.What is …

Enzymes act as a catalyst by speeding up or slowing down processes in the body. A protein enzyme has a particular shape that contains an active site. An active site is where a substrate fits into place to have its bonds either built or broken. At which time the products …

Many infectious diseases caused by infectious agents, including bacteria, fungi, viruses and parasites, have plagued human existence. Thus the identification of bacteria becomes all the more important in the search for medicines and cure. Identification of bacteria is a multistep process because while some preliminary guesses can be made from …

What is the morphology and gram reaction of this pathogen (2) E. coli, including E. coli O157H7 is a gram-negative bacillus. What do (i) O157 and (ii) H7 attached to the name of this bacterium represent (2). The O157 is the serotype antigen that identifies the E. coli strain, and …

The pineapple is a tropical plant and fruit. It is an example of a multiple fruit: multiple, spirally-arranged flowers along the axis, each produce a fleshy fruit that becomes pressed against the fruits of adjacent flowers, forming what appears to be a single fleshy fruit. Pimeapples are the only eration …

Introduction In July 2006, L’Oréal welcomed The Body Shop to its family of brands. L’Oréal places great value on The Body Shop’s exceptional emphasis on being a sustainable and ethical business. It intend that close co-operation between their businesses will result in shared best practice and the identification of opportunities …

CONCLUSION: In this experiment the length of the potato cylinders is affected by osmosis. As the water moves in or out of the potatoes, the potatoes swell or shrink, thereby reducing or increasing in size or length. From the graph it can be inferred that the there is a negatively …

Explain what free energy is and how it can be used to predict the energetic outcome of chemical reactions.Free energy is defined as the energy available to do work in any system. The free energy is denoted by the symbol G. G = H – TS* H: the energy contained …

A number of steps are required to isolate DNA from cellular contents. Describe what happens at each step, and why it acts to separate the parts of the cell. /6 There are three specific steps required to isolate DNA from its cellular contents. The steps used to remove and expose …

I.Introduction Planet of Life: Apes to Man is narrated by Stacy Keach and it was originally produced and presented by the Discovery Channel. This series shows us about the history of evolution on this planet and each episode has a separate chapter in the biography of the world. This series …