LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 1. a) The small fragments of DNA, produced during replication are called as --------------b) The enzyme catalyzing the synthesis of RNA from DNA is --------------------. 2. Give the structure of RNA polymerase. 3. Name the two antibiotics which act as ionophores for potassium (k+) ions. 4. What is t ...
... 1. a) The small fragments of DNA, produced during replication are called as --------------b) The enzyme catalyzing the synthesis of RNA from DNA is --------------------. 2. Give the structure of RNA polymerase. 3. Name the two antibiotics which act as ionophores for potassium (k+) ions. 4. What is t ...
DNA - The Double Helix - BIOLOGY
... Recall that the nucleus is a small spherical, dense body in a cell. It is often called the "control center" because it controls all the activities of the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribon ...
... Recall that the nucleus is a small spherical, dense body in a cell. It is often called the "control center" because it controls all the activities of the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribon ...
DNA Lab Techniques
... of a group of genetically identical cells • May be produced by asexual reproduction (mitosis) ...
... of a group of genetically identical cells • May be produced by asexual reproduction (mitosis) ...
Ch. 20 Biotechnology Reading Guide 9th Edition
... a. What is the source of the gene of interest? b. Explain why the plasmid is engineered with ampR and lacZ. c. Why are both the gene of interest and the plasmid cut with the same restriction enzyme? d. What is the role of DNA ligase in this process? e. After transformation has occurred, why are some ...
... a. What is the source of the gene of interest? b. Explain why the plasmid is engineered with ampR and lacZ. c. Why are both the gene of interest and the plasmid cut with the same restriction enzyme? d. What is the role of DNA ligase in this process? e. After transformation has occurred, why are some ...
DNA Replication
... a. Sides of ladder are made up of sugar & phosphate groups b. Steps of ladder are made up of nitrogen base pairs (A-T & C-G) -- Applied Chargaff’s rules c. Base pairs (steps) are held together by weak hydrogen bonds d. Sequence (order) of nitrogen bases determines the genetic instructions / “genetic ...
... a. Sides of ladder are made up of sugar & phosphate groups b. Steps of ladder are made up of nitrogen base pairs (A-T & C-G) -- Applied Chargaff’s rules c. Base pairs (steps) are held together by weak hydrogen bonds d. Sequence (order) of nitrogen bases determines the genetic instructions / “genetic ...
Comments on DNA Analysis
... who by chance would have the DNA profile which is common to the known person and the evidence – That number is approximately 1 in X (often a very large number) – Numbers are typically presented for several racial/ethnic groups ...
... who by chance would have the DNA profile which is common to the known person and the evidence – That number is approximately 1 in X (often a very large number) – Numbers are typically presented for several racial/ethnic groups ...
DNA History, Structure, Packaging PPT
... The History of DNA Structure James Watson and Francis Crick University of Cambridge -1953 Worked on problem of making a DNA molecule model that was double stranded but also had the specific A - T and G - C base ...
... The History of DNA Structure James Watson and Francis Crick University of Cambridge -1953 Worked on problem of making a DNA molecule model that was double stranded but also had the specific A - T and G - C base ...
Abstract - IJCMAAS
... molecular biology tests. Most of the laboratories are using kit based DNA extraction methods, which is expensive. We compared the kit based DNA extraction with a conventional technique of DNA extraction based on the Perchlorate technique. Material and Method: DNA was extracted on 60 samples by the k ...
... molecular biology tests. Most of the laboratories are using kit based DNA extraction methods, which is expensive. We compared the kit based DNA extraction with a conventional technique of DNA extraction based on the Perchlorate technique. Material and Method: DNA was extracted on 60 samples by the k ...
Name
... d. each new double helix consists of 1 old & 1 new strand. 12. In E. coli the error rate of DNA replication is approximately a. 1 per 1,000 nucleotides. b. 1 per 1,000,000 nucleotides. c. 1 per 1,000,000,000 nucleotides. d. 1 per 1,000,000,000,000 nucleotides. 13. Eukaryotic replication bubbles open ...
... d. each new double helix consists of 1 old & 1 new strand. 12. In E. coli the error rate of DNA replication is approximately a. 1 per 1,000 nucleotides. b. 1 per 1,000,000 nucleotides. c. 1 per 1,000,000,000 nucleotides. d. 1 per 1,000,000,000,000 nucleotides. 13. Eukaryotic replication bubbles open ...
DNA Structure and Analysis
... deoxyribose carbon 3′ end hydroxyl attached to 3′ deoxyribose carbon ...
... deoxyribose carbon 3′ end hydroxyl attached to 3′ deoxyribose carbon ...
Daily TAKS Connection: DNA
... Adenine from DNA complements Uracil in RNA Thymine from DNA complements Adenine in ...
... Adenine from DNA complements Uracil in RNA Thymine from DNA complements Adenine in ...
Composition and structure of DNA and RNA and differences
... a cytotoxic effect by intercalating into the narrow grove and interfering with DNA synthesis. ...
... a cytotoxic effect by intercalating into the narrow grove and interfering with DNA synthesis. ...
Genetic Engineering
... Sometimes we want new varieties of an organism, so we induce mutation. Mutations are the main source of genetic variation, it’s how new traits form Breeders can use radiation and chemicals to force mutations to occur. Most of the time these mutations are harmful to the organism, but occasiona ...
... Sometimes we want new varieties of an organism, so we induce mutation. Mutations are the main source of genetic variation, it’s how new traits form Breeders can use radiation and chemicals to force mutations to occur. Most of the time these mutations are harmful to the organism, but occasiona ...
Chapter 13 Notes
... Offspring are homozygous for most traits Pure breeds-is a selected group of organisms within a species that has been bred because of a specific characteristic they portrait Hybrids plants can increase productivity of food for humans because it is usually bigger in size and has more nutrients Gen ...
... Offspring are homozygous for most traits Pure breeds-is a selected group of organisms within a species that has been bred because of a specific characteristic they portrait Hybrids plants can increase productivity of food for humans because it is usually bigger in size and has more nutrients Gen ...
DNA Structure with Coloring Activity
... The nucleus is a small spherical, dense body in a cell. It is often called the "control center" because it controls all the activities of the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid) ...
... The nucleus is a small spherical, dense body in a cell. It is often called the "control center" because it controls all the activities of the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid) ...
CP Biology Day 1 - Calhoun City Schools
... 2. From the templates provided by your teacher, cut out the pattern for the chemical bases sugars, and phosphates listed above (note – there are more than these on the templates, only cut out the amount listed in the materials section). 3. Arrange the cut outs on your table to form the pattern descr ...
... 2. From the templates provided by your teacher, cut out the pattern for the chemical bases sugars, and phosphates listed above (note – there are more than these on the templates, only cut out the amount listed in the materials section). 3. Arrange the cut outs on your table to form the pattern descr ...
Trends in Biotechnology
... libraries, and expression libraries. How are they constructed? What are the libraries looking for? How they are ...
... libraries, and expression libraries. How are they constructed? What are the libraries looking for? How they are ...
DNA repair
DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. In human cells, both normal metabolic activities and environmental factors such as UV light and radiation can cause DNA damage, resulting in as many as 1 million individual molecular lesions per cell per day. Many of these lesions cause structural damage to the DNA molecule and can alter or eliminate the cell's ability to transcribe the gene that the affected DNA encodes. Other lesions induce potentially harmful mutations in the cell's genome, which affect the survival of its daughter cells after it undergoes mitosis. As a consequence, the DNA repair process is constantly active as it responds to damage in the DNA structure. When normal repair processes fail, and when cellular apoptosis does not occur, irreparable DNA damage may occur, including double-strand breaks and DNA crosslinkages (interstrand crosslinks or ICLs).The rate of DNA repair is dependent on many factors, including the cell type, the age of the cell, and the extracellular environment. A cell that has accumulated a large amount of DNA damage, or one that no longer effectively repairs damage incurred to its DNA, can enter one of three possible states: an irreversible state of dormancy, known as senescence cell suicide, also known as apoptosis or programmed cell death unregulated cell division, which can lead to the formation of a tumor that is cancerousThe DNA repair ability of a cell is vital to the integrity of its genome and thus to the normal functionality of that organism. Many genes that were initially shown to influence life span have turned out to be involved in DNA damage repair and protection.