Genetics Essays

What is cloning? Cloning in biotechnology refers to processes used to create copies of DNA fragments (molecular cloning), cells (cell cloning), or organisms. It describes the processes used to create an exact genetic replica of another cell, tissue or organism. The copied material, which has the same genetic makeup as …

Biotechnology pertains to any technology that employs biological materials or processes in order to generate or construct a desired or expected product.  Genetic engineering is a category of biotechnology that uses techniques to alter the genetic information of a biological entity.  Biotechnological methods are extensively used in the field of …

            Pedigree analysis can be done in order to determine the probability of an offspring inheriting a specific gene, like that of cystic fibrosis.  In the given activity, since a friend’s cousin has cystic fibrosis, then it can be deduced that their grand parent can only be a heterozygous (Cc) …

In every base pairing, a Purine always pairs with a Pyrimidine. In DNA replication, the DNA strands pair with its complementary base. A purine pairs with a Pyrimidine. The Purines are: Adenine (A) and Guanine (G).  they have a larger molecular structure than pyrimidines. The pyrimidines are Cytosine (C) and …

            The manner in which genes that are related in function are grouped together do have an advantage in that it is possible to have an off-on switch that is capable to control the functions of the genes. Taking for instance an E. coli cell must make tryptophan for itself …

Opening             The case of the state of California versus O.J. Simpson was probably one of the major cases of the 1990s. Even today there is still a disagreement as to whether OJ Simpson was guilty or innocent.  Many believe O.J. Simpson was guilty, but because he had the money …

The mechanism for evolution is called Natural Selection to distinguish it from Artificial Selection. Evolution occurs at the population level because genetics don’t change. The frequencies of different genetic types (genotypes) within a population do change over time & can create new species. There is genetic variation in all populations; …

A. DNA Extraction Virtual Lab [2 marks] Question 1 [1.0 mark] Isolate nucleated cells into eppendorf tube (correct starting step). Add 500 ul 10% SDS and 55 ul proteinase K (10 mg/ml stock). Incubate at 37ºC with gentle mixing or rocking. Add 1.4 ml saturated NaCl solution (approximately 6M). Spin …

1. After more than three decades in prison, a man in Florida was set free Thursday after a DNA test showed he did not kidnap and rape a 9-year-old-boy in 1974. James Bain, 54 was 19 when he was convicted on charges of kidnapping, burglary and strong-arm rape. Now he …

DNA replication is a biological process that occurs in all living organisms and copies their DNA; it is the basis for biological inheritance. The process starts when one double-stranded DNA molecule produces two identical copies of the molecule. The cell cycle (mitosis) also pertains to the DNA replication/reproduction process. The …