Unit 1: Cells - Loudoun County Public Schools
... 1. Understand the history of DNA. a) Understand the contributions of all scientists that led to the development of the Double Helix structure by Watson, Crick, Franklin and Chargaff. 2. Explain how the genetic code is contained in DNA a) DNA is a macromolecule (polymer) made up of repeating subunits ...
... 1. Understand the history of DNA. a) Understand the contributions of all scientists that led to the development of the Double Helix structure by Watson, Crick, Franklin and Chargaff. 2. Explain how the genetic code is contained in DNA a) DNA is a macromolecule (polymer) made up of repeating subunits ...
pdf version
... system, which operates at the level of molecular ʻcapsʼ named telomeres, prevents cells from treating chromosome ends like accidental DNA breaks and ʻrepairingʼ them. Joining chromosome ends would, indeed, lead to tumor formation. This study, carried out by Cyril Ribeyre and led by David Shore, prof ...
... system, which operates at the level of molecular ʻcapsʼ named telomeres, prevents cells from treating chromosome ends like accidental DNA breaks and ʻrepairingʼ them. Joining chromosome ends would, indeed, lead to tumor formation. This study, carried out by Cyril Ribeyre and led by David Shore, prof ...
Set 2
... fertilization, to produce a zygote and then an embryo. Most plants produce both male and female gametes, while some produce one or the other only. Pollen contains the male gametes and is found on the stamen. Ovules contain the female gametes and are found in the pistil. Pollination occurs when polle ...
... fertilization, to produce a zygote and then an embryo. Most plants produce both male and female gametes, while some produce one or the other only. Pollen contains the male gametes and is found on the stamen. Ovules contain the female gametes and are found in the pistil. Pollination occurs when polle ...
Biology 303 EXAM II 3/16/99 NAME
... 12. Hfr bacterial cells exhibit the highest levels of gene transfer because 1. they contain two distinct F factors. 2. they induce the production of significantly more sex pili than normal F+ cells. 3. rather than existing as an isolated plasmid, the F factor is incorporated within the main chromoso ...
... 12. Hfr bacterial cells exhibit the highest levels of gene transfer because 1. they contain two distinct F factors. 2. they induce the production of significantly more sex pili than normal F+ cells. 3. rather than existing as an isolated plasmid, the F factor is incorporated within the main chromoso ...
File - Mr Murphy`s Science Blog
... 3. List the four base pairs which make up DNA ? _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ __________________________________________ ...
... 3. List the four base pairs which make up DNA ? _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ __________________________________________ ...
File
... DNA molecules can build an exact copy of itself. This is called replication. (ATP is the energy source) Replication is important for reproduction and must occur every time a cell divides. That way each cell has a complete set of instructions for making proteins. ...
... DNA molecules can build an exact copy of itself. This is called replication. (ATP is the energy source) Replication is important for reproduction and must occur every time a cell divides. That way each cell has a complete set of instructions for making proteins. ...
and Post-assessment multiple choice questions
... D. Cells that did not take up the plasmid will survive on the medium. E. Each colony began with one antibiotic resistant cell and all cells in the colony are resistant to the antibiotic ampicillin. 12. Which of the following statements concerning development of antibiotic resistance is FALSE? A. It ...
... D. Cells that did not take up the plasmid will survive on the medium. E. Each colony began with one antibiotic resistant cell and all cells in the colony are resistant to the antibiotic ampicillin. 12. Which of the following statements concerning development of antibiotic resistance is FALSE? A. It ...
DNA Structure Copy Cats Protein Nucleic Acids RANDOM!
... Which nucleic acid brings amino acids to the ribosome to help make proteins? ...
... Which nucleic acid brings amino acids to the ribosome to help make proteins? ...
Selective Breeding and Genetic Engineering
... according to size Recombinant DNA: Creating DNA molecules (plasmids) with portions from more than one organism Polymerase Chain Reaction (PCR): Creating multiple copies of a short segment of DNA in a test tube ...
... according to size Recombinant DNA: Creating DNA molecules (plasmids) with portions from more than one organism Polymerase Chain Reaction (PCR): Creating multiple copies of a short segment of DNA in a test tube ...
Lecture 2 PSY391S John Yeomans
... the genes. What an opportunity! • Most of these genes are found in lower animals such as mice. • Behavioral effects of single genes can be studied in mice and humans. ...
... the genes. What an opportunity! • Most of these genes are found in lower animals such as mice. • Behavioral effects of single genes can be studied in mice and humans. ...
Gene expression An organism`s genome is the complete set of
... set of genes in each of its cells. Given an organism, every one of its cells has a copy of the exact same genome, but ◆ not all its cells express the same genes ◆ different genes express under different conditions Measure the levels of the various mRNAs in a cell in a specific state ⇒ gene expressio ...
... set of genes in each of its cells. Given an organism, every one of its cells has a copy of the exact same genome, but ◆ not all its cells express the same genes ◆ different genes express under different conditions Measure the levels of the various mRNAs in a cell in a specific state ⇒ gene expressio ...
Name:
... 1. __ Found the proportion of Adenine to be equal to that of Thymine, and the proportion of Cytosine to be equal to that of Guanine. __ Proposed the Theory of Natural Selection. __ The father of modern genetics. __ Disproved the theory of spontaneous generation with his experiment involving flies an ...
... 1. __ Found the proportion of Adenine to be equal to that of Thymine, and the proportion of Cytosine to be equal to that of Guanine. __ Proposed the Theory of Natural Selection. __ The father of modern genetics. __ Disproved the theory of spontaneous generation with his experiment involving flies an ...
Aim: What is the structure of the DNA molecule?
... which make up a chromosome. Chromosomes are found in the nucleus of a cell. (Therefore DNA is in the nucleus) There are 46 pairs of chromosomes in the human cell. DNA is an instruction manual for all the processes that the organism does. DNA has all the information needed to make ...
... which make up a chromosome. Chromosomes are found in the nucleus of a cell. (Therefore DNA is in the nucleus) There are 46 pairs of chromosomes in the human cell. DNA is an instruction manual for all the processes that the organism does. DNA has all the information needed to make ...
Identification of fertility genes required for microgametogenesis in
... The process of microgametogenesis occurs within the developing pollen. It depends on two rounds of meiosis of microspore, and sporophitic functions provided by the surrounding anther tissues. Employing our rice T-DNA insertional mutant library, we identified three mutants exhibit a phenotype of comp ...
... The process of microgametogenesis occurs within the developing pollen. It depends on two rounds of meiosis of microspore, and sporophitic functions provided by the surrounding anther tissues. Employing our rice T-DNA insertional mutant library, we identified three mutants exhibit a phenotype of comp ...
Proein Synthesis Note Fill-in
... 50. A ribosome is made of _____________% of rRNA and _____________% of proteins. 51. A ribosome contains 2 sites for tRNA to bind called _____ and ______. 52. Sketch and label a ribosome. Include the attachment sites and the mRNA in your drawing. 53. What is the purpose of translation? 54. What 4 th ...
... 50. A ribosome is made of _____________% of rRNA and _____________% of proteins. 51. A ribosome contains 2 sites for tRNA to bind called _____ and ______. 52. Sketch and label a ribosome. Include the attachment sites and the mRNA in your drawing. 53. What is the purpose of translation? 54. What 4 th ...
The Nucleus, Chromosomes and Genes
... Cell death or a change in its functioning. In the worst cases the change in function leads to cancer. This is when a cell start to undergo uncontrollable division to create a tumour. B) If the mutation is in a sperm or egg cell All the cells in the new embryo will possess the mutation. Often this re ...
... Cell death or a change in its functioning. In the worst cases the change in function leads to cancer. This is when a cell start to undergo uncontrollable division to create a tumour. B) If the mutation is in a sperm or egg cell All the cells in the new embryo will possess the mutation. Often this re ...
The Great Divide
... 1. What is the full name of the chemical substance represented by the letters DNA? 2. The smallest molecules that make up DNA are called _____. 3. Name the two pairs of nitrogen bases that make up the ‘rungs’ of DNA. 4. What gives each person a unique DNA code? 5. Describe two characteristics of a ...
... 1. What is the full name of the chemical substance represented by the letters DNA? 2. The smallest molecules that make up DNA are called _____. 3. Name the two pairs of nitrogen bases that make up the ‘rungs’ of DNA. 4. What gives each person a unique DNA code? 5. Describe two characteristics of a ...
college-prep biology fall final exam review
... The differences between DNA and RNA The roles of DNA helicase, DNA polymerase, and RNA polymerase The roles of mRNA, tRNA, and rRNA in protein synthesis The definitions and processes of transcription and translation The definition of a codon and an understanding of the genetic code chart ...
... The differences between DNA and RNA The roles of DNA helicase, DNA polymerase, and RNA polymerase The roles of mRNA, tRNA, and rRNA in protein synthesis The definitions and processes of transcription and translation The definition of a codon and an understanding of the genetic code chart ...
Document
... 1. RNA-only genes produce functional RNA’s (tRNA, rRNA, miRNA, and more) 2. Protein-coding genes produce mRNA’s (17.3) 3. Transcription makes an RNA copy of a gene (17.4, 17.7) 4. Transcription begins when transcription factors bind to the promoter of a gene (17.8) G. Translation is the process of a ...
... 1. RNA-only genes produce functional RNA’s (tRNA, rRNA, miRNA, and more) 2. Protein-coding genes produce mRNA’s (17.3) 3. Transcription makes an RNA copy of a gene (17.4, 17.7) 4. Transcription begins when transcription factors bind to the promoter of a gene (17.8) G. Translation is the process of a ...
Extrachromosomal DNA
Extrachromosomal DNA is any DNA that is found outside of the nucleus of a cell. It is also referred to as extranuclear DNA or cytoplasmic DNA. Most DNA in an individual genome is found in chromosomes but DNA found outside of the nucleus also serves important biological functions.In prokaryotes, nonviral extrachromosomal DNA is primarily found in plasmids whereas in eukaryotes extrachromosomal DNA is primarily found in organelles. Mitochondrial DNA is a main source of this extrachromosomal DNA in eukaryotes. Extrachromosomal DNA is often used in research of replication because it is easy to identify and isolate.Extrachromosomal DNA was found to be structurally different from nuclear DNA. Cytoplasmic DNA is less methylated than DNA found within the nucleus. It was also confirmed that the sequences of cytoplasmic DNA was different from nuclear DNA in the same organism, showing that cytoplasmic DNAs are not simply fragments of nuclear DNA.In addition to DNA found outside of the nucleus in cells, infection of viral genomes also provides an example of extrachromosomal DNA.