Essays Tagged: "Cytosine"

DNA What is it?

rogenous bases. The first two, adenine and guanine, are double-ringed purine compounds. The others, cytosine and thymine, are single-ringed pyrimidine compounds. (Miller, 141) Four types of DNA nucleo ... pecific. Adenine is always linked to thymine by two hydrogen bonds, and guanine is always linked to cytosine by three hydrogen bonds. This is known as base pairing. (Miller, 143)The DNA of an organism ...

(6 pages) 202 0 2.0 Mar/1997

Subjects: Science Essays > Genetics & Genome Projects


eotide contains. The nitrogenous bases that are contained in DNA are adenine, thymine, guanine, and cytosine. The sugar group that is attached to the sugar-phosphate backbone is deoxyribose. Each nucl ...

(5 pages) 204 3 4.8 Feb/2003

Subjects: Science Essays > Genetics & Genome Projects

The structure of the nucleic acids DNA and RNA.

n-containing bases. There are 4 different types of bases, adenine (a), guanine (g), thymine (g) and cytosine (c) but in RNA thymine is replaced with uracil (u). Each base is complementary to another a ... d so DNA is made up of complementary base pairs. Adenine and Guanine are Purine whereas Thymine and Cytosine are Pyrimidines. Purines have two ring strucutres and pyrimidines have only one ring. Becau ...

(3 pages) 106 0 0.0 Apr/2003

Subjects: Science Essays > Biology

DNA lab write-up. Includes Introduction. Contains materials used in lab, and the steps taken.

ases are made up of 2 different types of Purines, Adenine and Guanine, and Pyrimidines, Thymine and Cytosine. The Purines have 5 nitrogen atoms; the Pyrimidines contain 2, therefore receiving the term ... oxyribose). Thymine, Tfor short, always bonds with Adenine (A). While Guanine (G) always bonds with Cytosine (C). DNA also codes for your protein, what proteins to make, and how to make them. However, ...

(3 pages) 66 1 3.7 Aug/2003

Subjects: Science Essays > Biology


idine bases. DNAcontains four such bases the purines adenine (A) and guanine(G) and the pyrimidines cytosine (C) andthymine (T). The RNA molecule, markedly similar to DNA, usually consists of a single ...

(4 pages) 91 1 3.0 Nov/2003

Subjects: Science Essays > Biology

The Fragile X syndrome and Duchenne muscular dystrophy (DMD) disease comparation

ir's chromosomes (DNA), which are coiled in a spiral ladder type through nucleotide hydrogen bases (cytosine-c, guanine-g, thymine-t, adenine-a) (fig1 below). Human cells have 46 chromosomes (fig 2 be ...

(14 pages) 88 3 2.4 Nov/2003

Subjects: Science Essays > Biology

FIlm Analysis of Gataca, Concentration in ethics.

. "Gattaca" is derived from the chemicals that make p the DNA chain (guanine, adenine, thymine, and cytosine.) This becomes very important when combined with the tag line "There is no gene for the hum ...

(7 pages) 73 1 3.5 Feb/2004

Subjects: Art Essays > Film & TV Studies > Film Review and Analysis


eotides of DNA vary only in their organic base. They have adenine (A), guanine (G), thymine (T), or cytosine (C). DNA is made up of three components: an organic base, a phosphate molecule, and a sugar ...

(6 pages) 120 0 1.7 Mar/2004

Subjects: Science Essays > Biology

Anatomy notes on dna and rna- very descriptive

g block of nucleic acid)-nucleobase,sugar,phosphate group.Adenine and Guaninie- purine. Double ringsCytosine/Thymine- pyrimidine-single ringsAdenine/thymine/cytosine/guanine -DNAAdening/uracil/cytosin ...

(2 pages) 32 0 3.5 Oct/2004

Subjects: Science Essays > Genetics & Genome Projects

Notes explaining the structure of DNA, replication process of DNA, how mutations work in DNA, and the Polymerase chain reaction process

a pentose sugar called deoxyribose-The different kinds of bases are adenine, thymine, guanine, and cytosine-In DNA, there is a 1:1 ratio of nucleotide bases: number of adenine = number of thymine and ... ratio of nucleotide bases: number of adenine = number of thymine and number of guanine = number of cytosine-DNA consists of 2 strands in a shape called a double helix -Double helix is 2-nm in ...

(3 pages) 63 0 2.0 Feb/2005

Subjects: Science Essays > Genetics & Genome Projects


bose (a simple sugar)ii. phosphate groupiii. nitrogen baseWhich can be either Adenine (A)Guanine (G)Cytosine (C)Thymine (T)iv. A bonds only with T and C only bonds with G because , :A and G are Purine ... ingle ring). Purines always bond with pyrimidines.Adenine and Thymine have two bonding sites, while Cytosine and Guanine have three bonding sites (for the hydrogen bond)v. Two long chains of nucleotid ...

(5 pages) 71 0 2.5 Mar/2005

Subjects: Science Essays > Biology

James Watson, Francis Crick, Maurice Wilkins and Rosalind Franklin

by hydrogen bonds between pairs of organic bases--adenine (A) with thymine (T) and guanine (G) with cytosine (C). Modern biotechnology also has its basis in the structural knowledge of DNA--in this ca ...

(4 pages) 32 0 5.0 May/2005

Subjects: Science Essays > Biology


te groups.Each sugar molecule is covalently linked to one of four possible bases, Adenine, Guanine, Cytosine and Thymine. A and G are larger molecules (called purines) and C and T are smaller molecule ... ds following the rules of complementary base pairing: adenine (A) to thymine (T) and guanine (G) to cytosine (C).Two strands of DNA are obtained from one, having produced two daughter molecules which ...

(1 pages) 56 0 1.0 May/2005

Subjects: Science Essays > Biology

DNA, nucleotides, chromosomes, nitrogen bases and genes: Structures/Funtions of each.

four nitrogenous bases. These bases are paired together: Adenine (A) is paired with Thymine (T) and Cytosine (C) is with Guanine (G).Funtion: The sequence of nucleotides in the DNA determines individu ...

(2 pages) 32 0 0.0 Mar/2006

Subjects: Science Essays > Biology

Genetic engineering -

f the ladder. The code is spelled out by four chemicals: adenine (A), thymine (T), guanine (G), and cytosine (C). A pairs with T, and G pairs with C to form the ladder (Lemonick 46-47).How Scientists ...

(4 pages) 19 0 5.0 Feb/2008

Subjects: Science Essays > Genetics & Genome Projects

DNA is material that makes up chromosomes that contain the

uence of bases, also called nucleotides. A base is one of four chemicals that are adenine, guanine, cytosine and thymine. The two strands of DNA are connected at each base. Each base will only bond wi ... th one other base, as follows: Adenine will only bond with thymine, and guanine will only bond with cytosine. The chemical structure of everyone's DNA is the same. The only difference between people o ...

(1 pages) 962 0 0.0 Feb/2008

Subjects: Science Essays > Biology

Structure of DNA

trand or side of the DNA. The bases or "rungs" are made up of either Adenine (A) and Thymine (T) or Cytosine (C) and Guanine (G). The attachment of the strands by the bases is specific as Adenine can ... . The attachment of the strands by the bases is specific as Adenine can only join with Thymine, and Cytosine can only join with Guanine. Since this base pairing is specific, if one knows the sequence ...

(4 pages) 184 1 5.0 Jun/2008

Subjects: Science Essays

History and Discovery of DNA

truction of the other half. The four nucleotides in DNA contain the bases adenine (A), guanine (G), cytosine (C) and thymine (T).The people responsible for the discovery of the double-helical structur ... he 1940’s Erwin Chargaff noticed a pattern in the amounts of the four bases: adenine, guanine, cytosine, and thymine. He took samples of DNA of different cells and found that the amount of adenin ...

(4 pages) 28 0 5.0 Jul/2008

Subjects: Science Essays > Genetics & Genome Projects

Studies Conducted in Single Nucleotide Polymorphism in B GalT-I

every 100 to 300 bases along the human genome, on average, where two of every three SNPs substitute cytosine with thymine.Variations in the DNA sequences of humans can affect how humans develop diseas ...

(7 pages) 1229 0 0.0 Apr/2009

Subjects: Science Essays > Biotechnology

Usher Syndrome. What Causes It. How It Happens

hromosomes in the cell nucleus. It is made of four bases adenine (A), thymine (T), guanine (G), and cytosine (C). Adenine and thymine always bond together and guanine and cytosine always bond together ...

(3 pages) 27 0 0.0 May/2010

Subjects: Humanities Essays > Health & Medicine > Diseases