Lesson 3
... DNA to form a base pair. Adenine and thymine bind together to form the A-T base pair. Likewise, guanine and cytosine come together to form the G-C base pair. The bases are joined together by weak hydrogen bonds, and it is this hydrogen bonding that produces DNA's familiar double helix shape. Whatev ...
... DNA to form a base pair. Adenine and thymine bind together to form the A-T base pair. Likewise, guanine and cytosine come together to form the G-C base pair. The bases are joined together by weak hydrogen bonds, and it is this hydrogen bonding that produces DNA's familiar double helix shape. Whatev ...
DNA - The Double Helix - BIOLOGY
... double helix (color the title black), which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar 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 r ...
... double helix (color the title black), which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar 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 r ...
Chapter 25: Molecular Basis of Inheritance
... a tumor, an abnormal mass of cells. Carcinogenesis, the development of cancer, is a gradual process. Cancer cells lack differentiation, form tumors, undergo angiogenesis and ...
... a tumor, an abnormal mass of cells. Carcinogenesis, the development of cancer, is a gradual process. Cancer cells lack differentiation, form tumors, undergo angiogenesis and ...
Slide 1
... Ex: Hold DNA out straight so that it has no Writhe, add of take out twist, then let fold up (Twist goes into Writhe). Normal DNA is negatively supercoiled, -0.06 = 6 turns for every 100 taken out. Why? Helps unwind DNA– makes it easier to uncoil, separate strands. Enzymes which do this called Topois ...
... Ex: Hold DNA out straight so that it has no Writhe, add of take out twist, then let fold up (Twist goes into Writhe). Normal DNA is negatively supercoiled, -0.06 = 6 turns for every 100 taken out. Why? Helps unwind DNA– makes it easier to uncoil, separate strands. Enzymes which do this called Topois ...
DNA extraction from cheek cells protocol I mailed to you
... What is the only characteristic that differs between these segments of DNA from a plant, a mammal and a bacterium? ...
... What is the only characteristic that differs between these segments of DNA from a plant, a mammal and a bacterium? ...
Bio 102 Practice Problems
... Multiple choice: unless otherwise directed, circle the one best answer. 1. Experiments by Avery, McCarty and MacLeod were consistent with the hypothesis that DNA is the genetic material. However, at the time many scientists still didn't believe that DNA was the genetic material for a variety of logi ...
... Multiple choice: unless otherwise directed, circle the one best answer. 1. Experiments by Avery, McCarty and MacLeod were consistent with the hypothesis that DNA is the genetic material. However, at the time many scientists still didn't believe that DNA was the genetic material for a variety of logi ...
Show Me Your DNA And I`ll Tell You Your Eye Color
... ScienceDaily (Mar. 9, 2009) — More and more information is being gathered about how human genes influence medically relevant traits, such as the propensity to develop a certain disease. The ultimate goal is to predict whether or not a given trait will develop later in life from the genome sequence a ...
... ScienceDaily (Mar. 9, 2009) — More and more information is being gathered about how human genes influence medically relevant traits, such as the propensity to develop a certain disease. The ultimate goal is to predict whether or not a given trait will develop later in life from the genome sequence a ...
Test Answers - WordPress.com
... Note: If the genotype is cc, the genotype in respect of gene R is immaterial, as no colour can form. 5. D In mammals, ‘sex-linked’ generally means ‘X-linked’ and the chromosome does not carry an allele of the gene in question. Tortoiseshell fur requires both Xb and Xg alleles to be present. In a mal ...
... Note: If the genotype is cc, the genotype in respect of gene R is immaterial, as no colour can form. 5. D In mammals, ‘sex-linked’ generally means ‘X-linked’ and the chromosome does not carry an allele of the gene in question. Tortoiseshell fur requires both Xb and Xg alleles to be present. In a mal ...
2421_Ch9.ppt
... cDNA (complementary DNA) - eukaryotic genes cannot be easily cloned in bacteria due to the presence of introns (stretches of DNA inside a gene which do not code for protein -- the coding parts are called exons) ...
... cDNA (complementary DNA) - eukaryotic genes cannot be easily cloned in bacteria due to the presence of introns (stretches of DNA inside a gene which do not code for protein -- the coding parts are called exons) ...
BL414 Genetics Spring 2006 Lecture 1 Outline January 18, 2006
... always arranged in a base pair with thymine and the guanosine is always paired with cytosine. Therefore, the two strands are complementary to each other. ...
... always arranged in a base pair with thymine and the guanosine is always paired with cytosine. Therefore, the two strands are complementary to each other. ...
Name
... ________________ into a complementary sequence of _______________. Location: Transcription occurs in the _________________. Why does Transcription Occur? The information on the ________ (which remains in the ___________) must somehow get out to the cell, where ____________ are made, so a single-stra ...
... ________________ into a complementary sequence of _______________. Location: Transcription occurs in the _________________. Why does Transcription Occur? The information on the ________ (which remains in the ___________) must somehow get out to the cell, where ____________ are made, so a single-stra ...
221_exam_3_2003
... Multiple choice. (1 point each) Choose the one best answer to each of the following questions. ____ Most prokaryotic promoters have a two-part consensus sequence that consists of a A. promoter and terminator B. promoter and operator C. activator and operator D. –10 and –35 region ____ Natural transf ...
... Multiple choice. (1 point each) Choose the one best answer to each of the following questions. ____ Most prokaryotic promoters have a two-part consensus sequence that consists of a A. promoter and terminator B. promoter and operator C. activator and operator D. –10 and –35 region ____ Natural transf ...
molbioDay1
... (yellow fluorescent protein). To do this, we will perform four steps: prepare the insert by copying the YFP insert by PCR, remove the LacZ gene from the backbone with restriction enzyme digestion, ligate the YFP gene in its place on the backbone and transform E. coli via electroporation to express t ...
... (yellow fluorescent protein). To do this, we will perform four steps: prepare the insert by copying the YFP insert by PCR, remove the LacZ gene from the backbone with restriction enzyme digestion, ligate the YFP gene in its place on the backbone and transform E. coli via electroporation to express t ...
PowerPoint Notes on Chapter 9
... Step 1 DNA helicases open the double helix by breaking the hydrogen bonds that link the complementary nitrogen bases between the two strands. The areas where the double helix separates are called replication forks. ...
... Step 1 DNA helicases open the double helix by breaking the hydrogen bonds that link the complementary nitrogen bases between the two strands. The areas where the double helix separates are called replication forks. ...
Multiple Choice. ______1. Which of the following molecules
... c. They are the units of transcriptional regulation in prokaryotes. d. All of the above are true; none is false. ______37. In the absence of substance M, a hypothetical LM operon is turned off. If substance M is abundant, it can bind to the repressor, which permits the polymerase to begin transcribi ...
... c. They are the units of transcriptional regulation in prokaryotes. d. All of the above are true; none is false. ______37. In the absence of substance M, a hypothetical LM operon is turned off. If substance M is abundant, it can bind to the repressor, which permits the polymerase to begin transcribi ...
dna condensation and how it relates to phase
... known, along with the DNA sequence of its site of action (5), the operator. The lac repressor is a tetrametic protein with four identical subunits of 360 amino acids each, giving a total molecular weight of 154,000. The lac operator sequence is about 25-30 base pairs long. With the wealth of informa ...
... known, along with the DNA sequence of its site of action (5), the operator. The lac repressor is a tetrametic protein with four identical subunits of 360 amino acids each, giving a total molecular weight of 154,000. The lac operator sequence is about 25-30 base pairs long. With the wealth of informa ...
Ch. 20 Biotechnology
... clone the “foreign” (human) DNA in plasmids and put them into bacteria to replicate millions of copies ...
... clone the “foreign” (human) DNA in plasmids and put them into bacteria to replicate millions of copies ...
DNA and Heredity
... Is noncoding DNA purely structural? Is it an evolutionary holdover? Does it indicate something we don’t understand? ...
... Is noncoding DNA purely structural? Is it an evolutionary holdover? Does it indicate something we don’t understand? ...
DNA and Protein Synthesis
... What actual structures make up the sides of the ladder? • Deoxyribose sugar • Phosphate ...
... What actual structures make up the sides of the ladder? • Deoxyribose sugar • Phosphate ...
Chapter 13 DNA Technology
... - “sticky ends” (single chain segments or tails created on the cut piece of DNA….easily bind to complementary strands of DNA. ** Pieces of DNA cut with the same restriction enzyme can bind to form a new sequence of nucleotides…..therefore, DNA HAS BEEN TRANSFERRED OR ISOLATED!!!!!!! See fig.13-1 on ...
... - “sticky ends” (single chain segments or tails created on the cut piece of DNA….easily bind to complementary strands of DNA. ** Pieces of DNA cut with the same restriction enzyme can bind to form a new sequence of nucleotides…..therefore, DNA HAS BEEN TRANSFERRED OR ISOLATED!!!!!!! See fig.13-1 on ...
Biology 102 Lecture 11: DNA
... Virtually all cell function is a result of proteins and their interactions ...
... Virtually all cell function is a result of proteins and their interactions ...
DNA polymerase
The DNA polymerases are enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two identical DNA strands from a single original DNA molecule. During this process, DNA polymerase “reads” the existing DNA strands to create two new strands that match the existing ones.Every time a cell divides, DNA polymerase is required to help duplicate the cell’s DNA, so that a copy of the original DNA molecule can be passed to each of the daughter cells. In this way, genetic information is transmitted from generation to generation.Before replication can take place, an enzyme called helicase unwinds the DNA molecule from its tightly woven form. This opens up or “unzips” the double-stranded DNA to give two single strands of DNA that can be used as templates for replication.