Premium Essay

Week5Assignmentsci230

In:

Submitted By drob8585
Words 403
Pages 2
Associate Program Material

DNA Worksheet

Answer the following in at least 100 words:

1. Describe the structure of DNA.

A DNA molecule which is abbreviation for deoxyribonucleic acid is made up of very long chains of monomers and polymers that are called nucleotides. These two chains in particular which composes of DNA strain are then formed by the grouping of the nucleotides into the polynucleotides. The nucleotide is made up of a nitrogenous base, of sugar and of a phosphate group. In the DNA case, there are four nucleotides that are found along the DNA chain, the four nucleotides ate (T) thyme, (A) adenine, (C) cytosine, and (G) guanine. These four nucleotides are joined together by their covalent bonds, or more specific, the phosphates and the sugar which composes the sugar/phosphate back bone of the polynucleotide.

2. How does an organism’s genotype determine its phenotype?

The genotype of an organism is the genetic makeup of that organism, it is the nucleotide bases in the organism’s DNA. The phenotype is considered the physical traits of the organism which comes from the actions of the broad variety of proteins. The body of an organism is made up by the structural proteins and the metabolic activities are catalyzed by the enzymes. The synthesis of the proteins is specified by the DNA. However, a protein is not directly built by a gene, but dispatches the instructions to do so in the form of the RNA, which in turn programs the synthesis of the protein.

3. Describe each stage of the flow of information starting with DNA and ending with a trait.

DNA and RNA are long linear polymers that carry information in a form that can be passed from one generation to the next. In order to carry on a trait to the next generation the RNA polymerase has to bind with the promoter of the gene, which then opens the DNA double

Similar Documents