Sc160 Basic Biology Assignment 08 Paper

SC160.3.1 Basic BiologyAssignment 3_03June 16th2016All living things are composed of cells, they share several characteristics. Organisms are coordinated structure that consists of one or more cells. Even a simple single cell organisms are complex as inside each cell atoms made up molecules; these in tern makes up cell organelles. Organisms can respond to diverse stimuli. For example plants tends to grow in the direction of the light. Even bacteria can move forward or away from chemical. A single cell organisms reproduce by first duplicating their DNA. Then they divide it equally as the cell prepares to formnew cells.There are two major categories of cells, these includes eukaryotic cells and prokaryotic cells. Eukaryotic cells can be further distinguished as animal cells or plant cells. Prokaryotic cells are atype of cell lacking a nucleus and other organelles, these cells are found only in the domains Bacteria and Archaea. Eukaryotic cells have a membrane enclosed nucleus and other membrane enclosed organelles. The nucleus in the eukaryotic cell holds the majority of the genetic material and controls all activity within the cell, similar to that of a master blueprint. DNA replication which can be defined as the process where two identical copies are created fromone original DNA strand occurs within the nucleus of the cell. The movement of the MRNA happens in the ribosomes.Ribosomes are cells that helps in the production of protein, they are responsible to link amino acids together. When cells need to produce protein (mRNA) is created in the nucleus. There are

Lanado GibsonAC1405766SC160.3.1 Basic Biology SC160 Assignment 08June 21st, 2016DNA is labeled as the genetic blueprint of life, simply because it contains the instructionsthat govern the development of an organism. DNA is made up of something called repetitive DNA, which is of particular use in forensic DNA analysis.Inside this region of DNA are unique repeating patterns that can be used to differentiate one person from another. These patterns are known as short-tandem repeats (STRs), they can be measured to define the DNA profile of an individual. One example of how DNA is used within forensic science isif a person touched an object or weapon, skin cells may have been left behind. This low-level DNA is sometimes referred to as "touch DNA", low-level DNA samples are helpful when examining an object where retrieving a fingerprint would be difficult. Another example is liquid blood or blood stains that can be collected from a crime scene; forensic scientist can used the DNA from the blood samples to determine who blood is it to help solve a case. Forensic scientist can also collect and analyze DNA from hair samples that could be left behind or near a crime scene. These small DNA samples are very helpful to forensic scientist in connecting missing pieces. Population evolution is defined by the changes a population experience over time. These changes can affect all organisms within a population whether they are single microorganisms or

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