ipl-logo

T2 Bacteriophages Lab Report

393 Words2 Pages

protein. The experiment uses two sets of T2 bacteriophages. DNA has P but no S and Protein has S but not P. They also knew that something from T2 phage entered E. coli cells and directed the bacteria to produce more phage. They assumed that the genetic material was the material that entered the cell. So they set out to determine the chemical nature of the material. In separate experiments they infected E. coli cells with 35S or 32P labeled phage. By analyzing the products they determined that 32P entered the cell. Thus DNA must be the genetic material. As you known that the structure of DNA is a double-helix polymer consists of two polynucleotide chains strands wound around each other. Polymer - linked chain of subunits. Bonds between the base …show more content…

The nucleotide of DNA consists of a deoxyribose sugar molecule to which is attached a phosphate group and one of four nitrogenous bases: two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). The nucleotides are linked together by covalent bonds between the phosphate of one nucleotide and the sugar of the next, forming a phosphate-sugar backbone. The sugar phosphate backbone is identical in every DNA molecule. DNA within the cell must be able to replicate itself. At this time, the cells is divided, the two strands of DNA also split and one strand be used as a template. This process is carried out by enzymes called DNA polymerases. Moreover, DNA chromosomes are depicted as X-shaped structures and when replicated chromosomes are highly condensed and appear in an X shape. In the nucleus, DNA forms a complex with proteins which is translated by mRNA and mRNA is created from DNA by the process transcription. This complex is called chromatin and is formed when the DNA wraps around nuclear proteins. In conclusion, with the chemical structure of DNA is very complex and researchers such as Oswald Avery, Frederick Griffith and Hershey-Chase has conducted experiments using

Show More
Related
1030 Words | 5 Pages

Purpose: DNA, also known as deoxyribonucleic acid is found in all living organisms. It was what holds genetic information. DNA is a genetic code that is composed of four components adenine, guanine, cytosine, and thymine also referred to as bases. These components make-up DNA and form a double through the base pairing of adenine to thymine and guanine to cytosine. Adenine is a purine nucleobase, a six-membered nitrogen ring fused to a five-membered nitrogen ring.

Read More
787 Words | 4 Pages

Then helicase opens the helix of DNA, proteins bind to the single strand to stabilize it. As DNA unwinds, topoisomerase are released. This replication requires primers; DNA polymerase does synthesizing of DNA. As the leading strand is continuously synthesized and the lagging strand is synthesize

Read More
232 Words | 1 Pages

The two base pairs are four of the small molecules that make up the DNA. The other two are the Phosphate molecule and the five carbon sugar called the deoxyribose. Nucleotides are the basic building blocks of a DNA. It is made up of one sugar molecule, one phosphate molecule and one of

Read More
1937 Words | 8 Pages

helix because of the repulsion water molecules present in cells have on them. Each DNA has its proper structure because of some structures that can appear in the strand due to this high affinity between the bases. We can talk about the Harpin structures or the Cruciform structures. Harbin structures are little folds on one strand of DNA due to the bases associating with themselves and not with the opposite strand. Cruciform structures follow the same procedure but are symmetrical to both side (the 5’-> 3’ and the 3’->5’).

Read More
482 Words | 2 Pages

These genetic instructions are essential instructions for the growth, function, and reproduction of the organisms. Nucleotides, the monomers of DNA, are composed of one of four distinct nitrogen-containing bases—adenine, thymine, cytosine, or guanine—and

Read More
958 Words | 4 Pages

However, the monomers in DNA chains are nucleotides[15], whereas monomers in proteins are amino acids.[16] A phosphate group, a deoxyribose, and a base form a nucleotide. The phosphate group of a nucleotide joins with the hydroxyl group of an adjacent nucleotide, resulting in a phosphodiester covalent bond, forming a water molecule and a single stranded polynucleotide. Complementary base pairing between two polynucleotide chains are essential in forming double-stranded DNA. These chains are held together by the hydrogen bonds formed by complementary base

Read More
1358 Words | 6 Pages

So, if a molecule of RNA forms a shape of DNA then it would perform function of DNA i.e.

Read More
171 Words | 1 Pages

Deoxyribonucleic acid (DNA) is a molecule that contains the essential genetic instructions/codes that are used in the development, functioning and reproduction of all living organisms. DNA is a nucleic acid, which, alongside proteins and carbohydrates forms the three major macromolecules that are essential for all forms of life. DNA consists of two biopolymer strands, which coil together to form a ‘double helical structure’. These two strands are known as polynucleotides as they are made up of several smaller nucleotide units. DNA consists of a linear polymer consisting of three types of molecule: an organic ‘aromatic flat base’ connected to a sugar called ‘ribose’, with an inorganic ‘phosphate linker’.

Read More
829 Words | 4 Pages

DNA Strand: Unlike DNA replication where both strands are replicated only one strand is transcribed, transcription also occurs in the 5'-3- direction. The strand that is transcribed is known as the template strand, the anti-sense strand or the non-coding strand. The DNA strand that isn't transcribed will however be the same as the newly synthesized RNA strand (except it will have Uracil instead of Thymine). For this reason the non-template DNA strand is often called the coding strand or sense strand. As both strands can be transcribed separately, each strand contains different sets of genes.

Read More
648 Words | 3 Pages

The first step, transcription, happens in the nucleus, which holds our DNA. A membrane called the nuclear envelope surrounds the nucleus, and its job is to create a room within the cell to both protect the genetic information and to house all the molecules that are involved in processing and protecting that info. This membrane is actually a set of two lipid bilayers, so there are four sheets of lipids separating the inside of the nucleus from the cytoplasm. The space between the two bilayers is known as the perinuclear space.

Read More
576 Words | 3 Pages

DNA (deoxyribonucleic acid) holds genetic information inside of all living organisms as the sole component of chromosomes. DNA embraces the information that is kept as a code which is prepared by four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). DNA is known as a double helix structure, a thread-like chain of nucleotides that uses growth, development functioning and reproduction for living organisms and viruses. Five important facts that I found out about DNA is that: 1. 99 percent of DNA is shared by every other human being.

Read More
322 Words | 2 Pages

The backbone of the polynucleotide chain consists of an alternating series of pentose (sugar) and phosphate residues, via 5'-3'

Read More
639 Words | 3 Pages

It is a twisting ladder, which is actually two strands that twist around each other. The strands are called polynucleotides. Polynucleotides are made out of nucleotides. Watson and another partner, Francis Crick, proved that a DNA molecule is able to duplicate itself, explains https://www.biography.com/people/james-d-watson-9525139 and https://geneed.nlm.nih.gov/topic_subtopic.php?tid=15&sid=16. Without being able to duplicate DNA molecules, organisms would not be able to grow.

Read More
573 Words | 3 Pages

Three billion bases occur within each of us, and it is the arrangement of this linear string that encompasses all the information required to build and maintain an organism; it is our genetic blueprint. Consequently, these strands are capable of self reproduction, a.k.a. a self-replicating molecule (Genetics Home Reference, 2018). See DNA double helix structure in Figure 1. Figure 1: DNA structure (Genetics Home Reference, 2018).

Read More
646 Words | 3 Pages

DNA is made up of nucleotides, and the nucleotides contain a phosphate group, a 5-carbon sugar, and a nitrogenous base. There are four bases for DNA. They are Adenine (A), Cytosine (C), Guanine (G), and Thymine (T). The sequence of these bases determines DNA’s genetic code. According to Genetic Alliance, epigenome is a series of chemical tags that lie on top of your genes, and tell your body which genes to read and how often to read them.

Read More

More about T2 Bacteriophages Lab Report

Open Document