Biology Page 2

Introduction The interaction between genetic variation and natural selection is one of the most important concepts in modern biology. The product of this interaction, evolution, which is a change in a populations allele frequency, is responsible for the great complexity and diversity of life seen on earth today. Allele frequencies of a non-evolving population (one…

The subject I will cover is lipids. I will tell you about the description of it s organic compound. I will tell you where it is found. I will tell you what the uses are in plants and animals. I will also tell you about its chemical structure and give examples of types of these…

When studying the grass under a microscope, you can see the chloroplasts containing chlorophyll, which from the Greek language is literally translated as a “green leaf”. This pigment has a green color and gives it to all plants. Under the influence of sunlight in plants, photosynthesis takes place, the main role in which it is…

Several people have puzzled over this question. There is no one single answer to this. Several factors contribute: Tropisms, environment, hormones, biological clocks, and even humans. We are trying to determine the effects of music on plants. It takes all these combined to have a plant that actually grows and a plant that is healthy…

Each spiraling strand is comprised of a sugar phosphate backbone and attached bases connected to a complimentary strand. The complimentary strand is connected by non-covalent hydrogen bonding between paired bases. The bases are adenine, thymine, ctyosine, and gaunine. The fundamental building block of DNA is the nucleotide. The nucleotide has three parts. A nitrogen-containing pyrimidine…

Enzymes are a biological reaction that remains unchanged, most enzymes are chemical of hydrogen peroxide which changes that release energy and build new materials for cells and tissues. Each enzyme has its own specific shape, but without enzymes, the digestive system will take weeks and weeks to digest food. When the enzyme changes shape it…

The ability to reproduce human beings without sexual reproduction is no longer only an idea to be explored in sci-fi movies and books. After over forty years of research and development, human cloning is quickly becoming a reality. Cloning captured the publics attention when Scottish scientists startled the world in July of 1996 when they…

What causes moldy bread and foods? How can you stop it? If you understand what fermentation is and how yeast survive you can answer these questions. Fermentation is the conversion of pyruvic acid into other compounds such as lactic acid or ethyl alcohol. Fermentation occurs when cells do not have oxygen. Some Organisms that use…

Tions have been predicted to alter the selectivity of the chloride ion channels.4 Mutations that are in the first NBF are predominant in CFTR. As previously mentioned, 70 percent of the mutations arising in CF cases are deletions of three base pairs in exon #10. These three base pairs give rise to phenylalanine and a…

Twenty-five years ago, scientists thought that cloning was virtually impossible. In the last five years, the science of cloning, has come to realization. What is a clone? A clone is a duplicate – much like a photocopy is a duplicate, or copy, of a document (Kolate, 238). A good example of copies that occur in…