Nucleic acids (核酸)
... Watson & Crick’s double helix model: Two helical DNA chains wind around the same axis to form a right-handed double helix. (两条 DNA链绕同一中心轴成右手双螺旋) The two DNA strands: Held by H-bonds formed between specific base pairs (两条DNA链靠彼此碱基间所成 氢键结合) Complementary (两条DNA链互补) Antiparallel (两条DNA链反向平行) 3 ...
... Watson & Crick’s double helix model: Two helical DNA chains wind around the same axis to form a right-handed double helix. (两条 DNA链绕同一中心轴成右手双螺旋) The two DNA strands: Held by H-bonds formed between specific base pairs (两条DNA链靠彼此碱基间所成 氢键结合) Complementary (两条DNA链互补) Antiparallel (两条DNA链反向平行) 3 ...
Study Guide for DNA Structure and Replication
... Understand that DNA replication occurs prior to cell division to ensure that both daughter cells receive identical copies of the original DNA molecule Explain why, for each of the two new DNA molecules, one strand is from the original DNA molecule, and the other strand is formed from individual ...
... Understand that DNA replication occurs prior to cell division to ensure that both daughter cells receive identical copies of the original DNA molecule Explain why, for each of the two new DNA molecules, one strand is from the original DNA molecule, and the other strand is formed from individual ...
File - Biology withMrs. Ellsworth
... 2. In order for DNA to begin replication __Hydrogen__ ___Bonds_______ between nitrogen bases must break. 3. DNA has ___2___ strands. 4. DNA nucleotides consist of 3 parts: a. _Nitrogen___ ____Bases____ b. __Phosphate____ ___Groups______ & c. __Deoxyribose____ ___Sugars____ 5. Nitrogen bases in the D ...
... 2. In order for DNA to begin replication __Hydrogen__ ___Bonds_______ between nitrogen bases must break. 3. DNA has ___2___ strands. 4. DNA nucleotides consist of 3 parts: a. _Nitrogen___ ____Bases____ b. __Phosphate____ ___Groups______ & c. __Deoxyribose____ ___Sugars____ 5. Nitrogen bases in the D ...
DNAandReplication Exam Qs.doc
... production of a new strand. As new DNA strands are produced, nucleotides can only be added in the 5’ to 3’ direction. Use the figure in part (a) and your knowledge of enzyme action and DNA replication to explain why new nucleotides can only be added in a 5’ to 3’ direction. ...
... production of a new strand. As new DNA strands are produced, nucleotides can only be added in the 5’ to 3’ direction. Use the figure in part (a) and your knowledge of enzyme action and DNA replication to explain why new nucleotides can only be added in a 5’ to 3’ direction. ...
N.S. 100 Lecture 3c - PPT Biochemistry Part 3 Assignment Page
... proteins with active sites. Active site attracts substrate(s) ...
... proteins with active sites. Active site attracts substrate(s) ...
Making a DNA model - bendigoeducationplan
... cytosine (C) and they link together in pairs (A with T, C with G) to form a rung. The order of the bases and rungs creates a kind of code for the DNA information. WH AT DO E S DNA DO ? All living things contain DNA. Let’s work from the large to the small. Your body is made up of many different chemi ...
... cytosine (C) and they link together in pairs (A with T, C with G) to form a rung. The order of the bases and rungs creates a kind of code for the DNA information. WH AT DO E S DNA DO ? All living things contain DNA. Let’s work from the large to the small. Your body is made up of many different chemi ...
Chapter 5: Structure and Function of Macromolecules
... Hydrogenating turns unsaturated into saturated (e.g. peanut butter) ...
... Hydrogenating turns unsaturated into saturated (e.g. peanut butter) ...
Lecture 2 DNA to Protein
... the strands start with a free 5’-hydroxyl group and end with a 3’-hydroxyl. • The strands run antiparallel 5’-3’ vs 3’-5’ with the appropriate nucleotides pairing A-T, C-G. • The two stranded, antiparallel, complementary DNA molecule forms the double helix. • One strand, the sense or coding strand, ...
... the strands start with a free 5’-hydroxyl group and end with a 3’-hydroxyl. • The strands run antiparallel 5’-3’ vs 3’-5’ with the appropriate nucleotides pairing A-T, C-G. • The two stranded, antiparallel, complementary DNA molecule forms the double helix. • One strand, the sense or coding strand, ...
EXERCISE 1: Fred Griffith and Transformation
... 21. What technique did Rosalind Franklin use to study the DNA molecule? 22. What important piece of information did Franklin’s work add to the puzzle regarding the structure of the DNA molecule? 23. Rosalind Franklin died of ovarian cancer before the Nobel prize was awarded for her work—subsequently ...
... 21. What technique did Rosalind Franklin use to study the DNA molecule? 22. What important piece of information did Franklin’s work add to the puzzle regarding the structure of the DNA molecule? 23. Rosalind Franklin died of ovarian cancer before the Nobel prize was awarded for her work—subsequently ...
Structure of DNA - McCarter Biology
... 2. Use the left half (original hemoglobin sequence given in table above) of your model and add new DNA nucleotides to form a new right side. 3. Build a second DNA model by adding new nucleotides to the right half of the original strand. 4. How do the two DNA molecules formed in replication compare? ...
... 2. Use the left half (original hemoglobin sequence given in table above) of your model and add new DNA nucleotides to form a new right side. 3. Build a second DNA model by adding new nucleotides to the right half of the original strand. 4. How do the two DNA molecules formed in replication compare? ...
Protein Synthesis Webquest
... ii. This codon signals for which amino acid? b. mRNA codon: G G C i. What is the complementary tRNA anticodon? ii. This codon signals for which amino acid? c. mRNA codon: U C C i. What is the complementary tRNA anticodon? ii. This codon signals for which amino acid? 21. How do you know when the prot ...
... ii. This codon signals for which amino acid? b. mRNA codon: G G C i. What is the complementary tRNA anticodon? ii. This codon signals for which amino acid? c. mRNA codon: U C C i. What is the complementary tRNA anticodon? ii. This codon signals for which amino acid? 21. How do you know when the prot ...
Slide 1
... traits or how they are expressed in the organisms. This sequence, that controls a given trait, is known as a gene. ...
... traits or how they are expressed in the organisms. This sequence, that controls a given trait, is known as a gene. ...
Protein Synthesis and Gene Expression Common Assessment Review
... 14. How does the DNA in your intestinal cells compare to the DNA in your lung cells? All body cells have the exact copy of DNA… the same 46 chromosomes with all the same genes 15. Why don’t stomach cells grow hair even though they contain the same genes as hair follicle cells? Even though all cells ...
... 14. How does the DNA in your intestinal cells compare to the DNA in your lung cells? All body cells have the exact copy of DNA… the same 46 chromosomes with all the same genes 15. Why don’t stomach cells grow hair even though they contain the same genes as hair follicle cells? Even though all cells ...
PROTEIN SYNTHESIS
... • Double helix • Nucleotides – Dexyribose (5 carbon sugar) – Phosphate – Nitrogen base (A,T,C,G) ...
... • Double helix • Nucleotides – Dexyribose (5 carbon sugar) – Phosphate – Nitrogen base (A,T,C,G) ...
BSC 1005 Chapter 10 Practice Test
... 22. Once viruses are detected, the number of viruses increases rapidly. This is because __________. (a) bacterial viruses are released slowly from the host cells (b) lysogeny produces large numbers of bacteriophages (c) DNA viruses reproduce more rapidly than RNA viruses (d) the host cell speeds th ...
... 22. Once viruses are detected, the number of viruses increases rapidly. This is because __________. (a) bacterial viruses are released slowly from the host cells (b) lysogeny produces large numbers of bacteriophages (c) DNA viruses reproduce more rapidly than RNA viruses (d) the host cell speeds th ...
artificial hybridization of dna strands and embedded systems
... substance that is found in the nucleus of cells, which stores the basic code of all life translated as biological instructions. The structure of the double helix of DNA was proposed and described by J. Watson and F. Cook in 1953. Nowadays this model is still fundamental in biological analysis indica ...
... substance that is found in the nucleus of cells, which stores the basic code of all life translated as biological instructions. The structure of the double helix of DNA was proposed and described by J. Watson and F. Cook in 1953. Nowadays this model is still fundamental in biological analysis indica ...
DNA - The Double Helix
... is deoxyribose. Color all the phosphates pink (one is labeled with a "p"). Color all the deoxyriboses blue (one is labeled with a "D") . The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines - adenine and guanine. The pyrimidines are thymine and cytosine. The b ...
... is deoxyribose. Color all the phosphates pink (one is labeled with a "p"). Color all the deoxyriboses blue (one is labeled with a "D") . The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines - adenine and guanine. The pyrimidines are thymine and cytosine. The b ...
Station 1: Draw the nucleotide below and then label the
... A-T-A-A-T-C-G-A-G-A-G-A-T-T-C-A-A-T-C-G T-A-T-T-A-G-C-T-C-T-C-T-A-A-G-T-T-A-G-C ______________________________ If there are 20% of a random strand of DNA is composed of adenine bases, what percent of the DNA is guanine? 80%_______ Gunaine (G) ...
... A-T-A-A-T-C-G-A-G-A-G-A-T-T-C-A-A-T-C-G T-A-T-T-A-G-C-T-C-T-C-T-A-A-G-T-T-A-G-C ______________________________ If there are 20% of a random strand of DNA is composed of adenine bases, what percent of the DNA is guanine? 80%_______ Gunaine (G) ...
Biology DNA - The Double Helix Review Sheet Recall that the
... 4. DNA can be found in what organelles? ______________________________________________ 5. What two scientists established the structure of DNA? ________________________________________ 6. Replication is called “semi-conservative” because half of the original strand is _______________________ 7. What ...
... 4. DNA can be found in what organelles? ______________________________________________ 5. What two scientists established the structure of DNA? ________________________________________ 6. Replication is called “semi-conservative” because half of the original strand is _______________________ 7. What ...
DNA - Bio by Aguayo
... Sides made of pentose (5-sided) sugars attached to phosphate groups by phosphodiester bonds Pentose sugar called Deoxyribose Steps or rungs of DNA made of 4 nitrogen-containing bases held together by weak hydrogen bonds Purines (double carbon-nitrogen rings) include adenine (A) and guanine (G) Pyrim ...
... Sides made of pentose (5-sided) sugars attached to phosphate groups by phosphodiester bonds Pentose sugar called Deoxyribose Steps or rungs of DNA made of 4 nitrogen-containing bases held together by weak hydrogen bonds Purines (double carbon-nitrogen rings) include adenine (A) and guanine (G) Pyrim ...
DNA
... Nitrogenous base; these bases are classified based on their chemical structures into two groups: Purine; double ringed structure (Adenine and Guanine). Pyrimidine; single ring structures (cytosine and thymine). ...
... Nitrogenous base; these bases are classified based on their chemical structures into two groups: Purine; double ringed structure (Adenine and Guanine). Pyrimidine; single ring structures (cytosine and thymine). ...
DNA Molecule Worksheet
... Note that that the bases attach to the sides of the ladder at the sugars and not the phosphate. The DNA helix is actually made of repeating units called nucleotides. Each nucleotide consists of three molecules: a sugar (deoxyribose), a phosphate which links the sugars together, and then one of the f ...
... Note that that the bases attach to the sides of the ladder at the sugars and not the phosphate. The DNA helix is actually made of repeating units called nucleotides. Each nucleotide consists of three molecules: a sugar (deoxyribose), a phosphate which links the sugars together, and then one of the f ...
Biology
... a. gain a better understanding of the processes of DNA replication, transcription, and translation b. gain a better understanding of how scientists are able to manipulate DNA and the various uses this technology has developed c. continue making proper scientific measurements and calculations d. defi ...
... a. gain a better understanding of the processes of DNA replication, transcription, and translation b. gain a better understanding of how scientists are able to manipulate DNA and the various uses this technology has developed c. continue making proper scientific measurements and calculations d. defi ...
Chapter 5
... bonds that form between the –OH group on the 3′ carbon of one nucleotide and the phosphate on the 5′ carbon on the next – These links create a backbone of sugarphosphate units with nitrogenous bases as ...
... bonds that form between the –OH group on the 3′ carbon of one nucleotide and the phosphate on the 5′ carbon on the next – These links create a backbone of sugarphosphate units with nitrogenous bases as ...
Biology DNA Extraction
... First, you need to find something that contains DNA. Since DNA is the blueprint for life, everything living contains DNA. For this experiment, we like to use Strawberries. Ripe strawberries are an excellent source for extracting DNA because they are easy to pulverize and contain enzymes called pecti ...
... First, you need to find something that contains DNA. Since DNA is the blueprint for life, everything living contains DNA. For this experiment, we like to use Strawberries. Ripe strawberries are an excellent source for extracting DNA because they are easy to pulverize and contain enzymes called pecti ...
DNA nanotechnology
DNA nanotechnology is the design and manufacture of artificial nucleic acid structures for technological uses. In this field, nucleic acids are used as non-biological engineering materials for nanotechnology rather than as the carriers of genetic information in living cells. Researchers in the field have created static structures such as two- and three-dimensional crystal lattices, nanotubes, polyhedra, and arbitrary shapes, as well as functional devices such as molecular machines and DNA computers. The field is beginning to be used as a tool to solve basic science problems in structural biology and biophysics, including applications in crystallography and spectroscopy for protein structure determination. Potential applications in molecular scale electronics and nanomedicine are also being investigated.The conceptual foundation for DNA nanotechnology was first laid out by Nadrian Seeman in the early 1980s, and the field began to attract widespread interest in the mid-2000s. This use of nucleic acids is enabled by their strict base pairing rules, which cause only portions of strands with complementary base sequences to bind together to form strong, rigid double helix structures. This allows for the rational design of base sequences that will selectively assemble to form complex target structures with precisely controlled nanoscale features. A number of assembly methods are used to make these structures, including tile-based structures that assemble from smaller structures, folding structures using the DNA origami method, and dynamically reconfigurable structures using strand displacement techniques. While the field's name specifically references DNA, the same principles have been used with other types of nucleic acids as well, leading to the occasional use of the alternative name nucleic acid nanotechnology.