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Slide 1
Slide 1

... nucleotides instead of the two strands found in DNA 2. RNA nucleotides contain the fivecarbon sugar ribose rather than the sugar deoxyribose, which is found in DNA nucleotides 3. In addition to the A, G, and C nitrogen bases found in DNA, RNA nucleotides can have a nitrogen base called uracil (U) ...
RNA polymerase
RNA polymerase

... nucleotide pair is called a base-pair substitution. • Some base-pair substitutions have little or no impact on protein function. • In silent mutations, alterations of nucleotides still indicate the same amino acids because of redundancy in the genetic code. • Other changes lead to switches from one ...
The interpretation of bioinformation
The interpretation of bioinformation

... BIOINFORMATION ...
Made-to-order Molecules A new invention acts as a molecular 3
Made-to-order Molecules A new invention acts as a molecular 3

... When the fly changed direction, even in total darkness, neuronal activity shifted from one part of the ellipsoid body to another, much like the needle of a compass. “We think we have a window into the fly’s internal model of its world,” says Vivek, who believes ellipsoid body neurons may share chara ...
The Human Genome Project
The Human Genome Project

... Summary of Studying the Human Genome  Scientists can read the base sequences in DNA with tools that cut, separate, and replicate DNA base by base.  The Human Genome Project was an effort to sequence base pairs of human DNA and identify human genes. ...
Standardized Test Prep Gene Technologies and Human Applications
Standardized Test Prep Gene Technologies and Human Applications

... Standardized Test Prep ...
Enhancing and Evolving to “Perfection”? Unit Study Guide 2013
Enhancing and Evolving to “Perfection”? Unit Study Guide 2013

... 5. Explain HOW penicillin affects bacterial cells AND WHY penicillin affects bacteria without harming your cells (see Section 1.18, pp. 30-31, and Chapter 28, p 783. See also pages 414-415 of Biology: A Guide to the Natural World. 2nd Ed., the red Krogh textbook). __________________________________ ...
DNA Deoxyribose Nucleic Acid
DNA Deoxyribose Nucleic Acid

... Which of the following correctly describes the components of DNA? A. DNA is made up of nucleotides consisting of the sugar deoxyribose, a phosphate, and one of four nitrogenous bases. B. DNA is made up of nucleotides consisting of the sugar ribose, a carbon ring, and one of four phosphorus bases. C ...
Gene Expression
Gene Expression

... • what monomers make up nucleic acids (DNA and RNA)? ...
Lynch Syndrome
Lynch Syndrome

... The human body is made of small living units called cells. Cells in the body contain millions of genes. Genes are the basic structural and functional units of heredity. ...
Plant Nuclear Genome Size Variation
Plant Nuclear Genome Size Variation

Heterocyclic compounds with biological meaning NEW
Heterocyclic compounds with biological meaning NEW

... DNA structure • DNA consists of two helical chains wound around the same axis in a right-handed fashion aligned in an antiparallel fashion. • There are 10.5 base pairs, or 36 Å, per turn of the helix. • Alternating deoxyribose and phosphate groups on the backbone form the outside of the helix. • Th ...
What is a mutation?
What is a mutation?

... Mutations to control genes can transform one body part into another. Scientists have studied flies carrying Hox mutations that sprout legs on their foreheads instead of antennae! ...
You should be able to find the information necessary to answer
You should be able to find the information necessary to answer

... ‘polar’ means. Provide two examples of how the polar nature of water contributes to the biologically important properties of water. ...
Lecture 20  DNA Repair and Genetic Recombination
Lecture 20 DNA Repair and Genetic Recombination

Unit V DNA RNA Protein Synthesis
Unit V DNA RNA Protein Synthesis

... Genes are the units that determine inherited characteristics, such as hair color and blood type. Genes are lengths of DNA molecules that determine the structure of polypeptides (the building blocks of proteins) that our cells make. The sequence of nucleotides in DNA determines the sequence of amino ...
Click www.ondix.com to visit our student-to
Click www.ondix.com to visit our student-to

... detected in prokaryotes. Bacterial expression vectors are usually plasmids with strong promoters, ribosome-binding sites, and transcription terminators. Eukaryotic proteins are made by inserting cDNA into an expression vector. Also, antibodies can be used to screen clones from expression-vector cDNA ...
Molecular Genetics
Molecular Genetics

... Bacillus subtilis (bacterium) ...
bio 30 ch 18 molecular genetics review
bio 30 ch 18 molecular genetics review

... b) More than 1 sequence is possible since some amino acids are coded for by more than 1 codon. c) Variability in mRNA due to mutation can still produce the same amino acid sequence since some amino acids are coded for by up to 6 different codons. 5. 1. DNA replication produces two double stranded mo ...
Ch._3_Powerpoint.pptx
Ch._3_Powerpoint.pptx

... In meiosis one cell divides into 4 new cells Each cell has half the number of chromosomes as the parent cell ...
Genomics
Genomics

... match between a query sequence and a subject sequence is the number of subject sequences in a completely random database that would have the same match score or better. The random database must be the same size as the one you are using. – Really bad matches have e-values of 1 or more: An e-value of ...
DNA PPT - Lyndhurst School District
DNA PPT - Lyndhurst School District

... Cells are made up of many structures, many of these will be covered in another unit on cells. What we need to focus on is the NUCLEUS. RIBOSOME: Site where proteins are made ...
Enantiomeric conformation controls rate and yield of photoinduced
Enantiomeric conformation controls rate and yield of photoinduced

Review Questions for Ch 1
Review Questions for Ch 1

... DNA differs from RNA in several ways. The sugar found DNA is deoxyribose rather than the ribose found in RNA. DNA carries the genetic information needed for protein construction whereas RNA is directly involved in protein construction. DNA and RNA share three of their four bases. Both have adenine ( ...
Phylogenetic DNA profiling : a tool for the investigation of poaching
Phylogenetic DNA profiling : a tool for the investigation of poaching

... individuals to kingdoms. The analysis relies on the comparison of heritable traits. Pre-“DNA,” morphological, biochemical and immunological markers were used to determine relationships, however with the development of sophisticated molecular genetic technology emphasis has shifted towards the utilis ...
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Nucleic acid double helix



In molecular biology, the term double helix refers to the structure formed by double-stranded molecules of nucleic acids such as DNA. The double helical structure of a nucleic acid complex arises as a consequence of its secondary structure, and is a fundamental component in determining its tertiary structure. The term entered popular culture with the publication in 1968 of The Double Helix: A Personal Account of the Discovery of the Structure of DNA, by James Watson.The DNA double helix polymer of nucleic acids, held together by nucleotides which base pair together. In B-DNA, the most common double helical structure, the double helix is right-handed with about 10–10.5 base pairs per turn. This translates into about 20-21 nucleotides per turn. The double helix structure of DNA contains a major groove and minor groove. In B-DNA the major groove is wider than the minor groove. Given the difference in widths of the major groove and minor groove, many proteins which bind to B-DNA do so through the wider major groove.
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