Dna and Dna Nucleotides Nitrogenous Essay

Submitted By bella50100

Words: 447

Pages: 2

Open Document

10.2 Vocabulary
Nucleotide- in a nucleic-acid chain, a sub- unit that consists of a sugar, a phos- phate, and a nitrogenous base
Deoxyribose- a five-carbon sugar that is a component of DNA nucleotides
Nitrogenous base- an organic base that contains nitrogen, such as a purine or pyrimidine; a subunit of a nucleotide in DNA and RNA
Purine- a nitrogenous base that has a dou- ble-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine
Pyrimidine- a nitrogenous base that has a single-ring structure; one of the two gen- eral categories of nitrogenous bases found in DNA and RNA; thymine, cyto- sine, or uracil
Base-pairing rules- the rules stating that cytosine pairs with guanine and adenine pairs with thymine in DNA, and that ade- nine pairs with uracil in RNA
Complementary base pair- the nucleotide bases in one strand of DNA or RNA that are paired with those of another strand; adenine pairs with thymine or uracil, and guanine pairs with cytosine
Base sequence- is the order of the nucleotide bases (bond pairs) in the DNA molecule. The order is where the information is stored in the molecule.
10.2 Review
1. Both gave a x ray of a diffraction of a DNA crystal
2. Phosphate, sugar, nitrogen base
3. Covalent bonds connect the sugars and phosphates, hydrogen bonds connect the nitrogenous bases.
4. They are complimentary because of the specific matching of base pairs. Adenine-Thymine and Guanine-Cytosine
5. State the base pairing rules
6. How do the base pairing rules relate to the structure of DNA.
10.3 Vocabulary
DNA replication- the process of making a copy of DNA
Helicase- an enzyme that separates DNA strands
Replication fork- a Y-shaped point

Dna Quiz

d. DNA. ANS: D DIF: 1 OBJ: 10-4.1 2. The primary function of DNA is to a. make proteins. b. store and transmit genetic information. c. control chemical processes within cells. d. prevent mutations. ANS: B DIF: 2 OBJ: 10-2.4 3. All of the following are true about the structure of DNA except a. short strands of DNA are contained in chromosomes inside the nucleus of a cell. b. every DNA nucleotide contains a sugar, a phosphate group, and a base. c. DNA consists of two strands of nucleotides joined…

Words 343 - Pages 2

Quiz Review Dna Amp Rna Essay

DNA AND RNA REVIEW Which of these diagrams shows the structure of a nucleotide? A C B D Name two nucleic acids. DNA and RNA Identify the part of the nucleotide labeled A. Identify the part of the nucleotide labeled B. Identify the part of the nucleotide labeled C. A phosphate group B nitrogenous base C deoxyribose or ribose adenine, thymine, Name two nitrogenous bases. guanine, cytosine, or uracil For the following definitions, give the vocabulary word(s): • segment of DNA that…

Words 987 - Pages 4

Ap Biology Pre Test

does DNA stand for? A. Deoxyribonucleic Acid B. Deoxyrinonucleic Acid C. Deoxyribonucleic Antacid D. Deoxyrinonucleic Antacid 2. What makes up the nucleotides of DNA? A. Sugar, Phosphatase and Nitrogenous base B. Ribose Sugar, Phosphate and Nitrogenous base C. Sugar, Phosphate and Nickle base D. Deoxyribose Sugar, Phosphate and Nitrogenous base 3. Which of the following best describes a DNA molecule? A. double helix B. contains ribose C. made of amino acids D. contains Uracil 4. Why is DNA important…

Words 1201 - Pages 5

Research: Dna and Amino Acids Essay

DNA and Protein Synthesis 1. The Swiss biochemist who in 1868 discovered DNA was a) Friedrich Miescher. b) Robert Feulgen. c) Alfred Mirsky. d) Max Delbruck. 2. The experiment in which it was shown that DNA is the genetic material in bacteriophages is the a) Meselson-Stahl experiment. b) Franklin-Wilkins experiment. c) Hershey-Chase experiment. d) Delbruck-Luria experiment. 3. The x-ray crystallography studies of Franklin and Wilkins showed that a) DNA contains only four…

Words 1942 - Pages 8

Essay on protein synthesis

found in certain positions in the chromosomes (see figure 1). Chromosomes are threadlike strands of DNA and protein. Chromosomes are located in the nucleus of most living cells carrying genetic information in the form of genes (see figure 2). Alleles determine the genotype of an organism. The Genotype shows what alleles an organism has by letters either being upper or lower case (see figure 3). These DNA codings determine different traits that the parents can pass on to their offspring. A trait is a…

Words 1291 - Pages 6

plant photosynthesis Essay

Lab Exercise DNA Extraction 10/30/13 DNA in all organisms is found primarily in chromosomes. Eukaryotic cells, like those found in humans, contain several linear chromosomes. Prokaryotic cells, such as bacteria, contain one large circular chromosome. DNA is composed of building blocks called nucleotides, each made up of a five-carbon sugar (deoxyribose), a phosphate group, and a nitrogenous base. The four kinds of nucleotides differ only in their nitrogenous bases. It is…

Words 825 - Pages 4

Molecular Biology: The Study Of Heredity At The Molecular Level

level. 2 ) bacteriophages- Viruses that only infect bacteria. 3) nucleotides- Nucleic acids consisting of long chains of monomers. 4) polynucleotide- A nucleotide polymer. 5) sugar-phosphate backbone- A repeating pattern of sugar-phosphate-sugar-phosphate. 6 )DNA 7) pyrimidines- Adenine and cytosine. 8) purines- Thymine and guanine. 9) uracil- A nitrogenous base found only in RNA not DNA. 10) Double Helix- The structure of DNA 11) semiconservative model- A model that suggest that daughter molecules…

Words 369 - Pages 2

BSC2010 exam review Essay

BSC: Exam 3 (chapters 16-20) Before lecture Questions: Q: “A discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA (or RNA, in some viruses).”  A: gene Q: If one strand of a DNA molecule has the sequence of bases 5'-GATTACA-3', the other complementary strand would have the sequence  3'-CTAAGTG-5' The two strands of the double helix are complementary, each the predictable counterpart of the other  Adenine (A) always pairs with Thymine (T); and Guanine…

Words 3041 - Pages 13

Essay on Genetics: Dna and Dna Molecule

cell contains __________chromosome(s). 2. The basic building block of a DNA molecule is the__________________________ 3. The observable physical traits of an organism are collectively referred to as its ______________________ 4. An organism's genetic makeup is its_____________________________ 5. The nitrogenous bases found in DNA are ____________, ______________,_____________and ______________. 6. In a DNA molecule thymine is always paired with ______________and guanine is always…

Words 647 - Pages 3

The structure of DNA and the process of gene expression Essays

the structure of DNA and the process of gene expression. Genes are made up of DNA, a structure of which was proposed in 1953 by Watson and Crick based on X-ray crystallography studies conducted by themselves and others. The structure of DNA has to be simple enough that an identical replica is formed during each cell division, as well as having enough variability in the structure to produce the large variety of genes found in the chromosomes. DNA is made of two chains of nucleotides wrapped around…

Words 966 - Pages 4