Dna Worksheet

Associate Program Material

DNA Worksheet

Answer the following in at least 100 words:

1. Describe the structure of DNA.

DNA is a polymer, which is a chemical compound or a mixture of compounds consisting of repeating structural units. These repeating structures are created through polymerization. The monomer, meaning one part, units of DNA are nucleotides. Each nucleotide consists of a five carbon sugar, also known as deoxyribose, and nitrogen containing base attached to the sugar, and do phosphate group. There is for different types of nucleotides. There is for different types of nucleotides. They differ in the nitrogenous base. The four types are shortened to just one letter: A- adenine, G- guanine, C- cytosine, and T- thymine. Adenine and G-guanine are purines. A purine is a neterocyclic aromatic organic compound. These purines are the larger of the two bases found in the DNA. Cytosine and thymine are pyrimidines. These are similar aromatic neterocyclic organic compounds.

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

I genotype is the genes present in your body. It is the organism’s full hereditary information. The phenotype is the composite organisms observable characteristics are traits. The genotypes are transcribed into mRNA (messenger RNA), wearing these molecules that can be generic information from DNA to the ribosome, an example of one of the traits would be morphology, or behavior. It is the organisms physical properties that determine whether or not pitching well served by and have reproductive output. Whereas physical properties are inherited as a secondary consequence of the inheritance of genes. It is the genes that cause a trait and the phenotype is that observable expression of the genes.

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

The cells divide they pass on three things, they are matter, energy, and genetic information. Generic information is enclosed with DNA. Generic information flows from DNA, to RNA, to protein. Cells express their genetic information selectively. In the course of natural development. The structure of a chromosome changes during the cell cycle, and the chromosome numbers change during the lifecycle. Cells express genetic information into ways, transcription into RNA in the nucleus, and transitioning to protein in the cytoplasm. When this is her genes, the genotypes determine phenotype, through mRNA which conveys genetic information from DNA to the ribosomes. Through this process we are able to see observable traits.