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practice exam 3_answer key
... 13. During which phase of mitosis does the nuclear envelope re-form? a. anaphase b. metaphase c. prophase d. telophase e. none of the above 14. The creation of genetically identical offspring by a single parent, without the participation of sperm and egg, is called a. asexual reproduction b. sexual ...
... 13. During which phase of mitosis does the nuclear envelope re-form? a. anaphase b. metaphase c. prophase d. telophase e. none of the above 14. The creation of genetically identical offspring by a single parent, without the participation of sperm and egg, is called a. asexual reproduction b. sexual ...
DNA notes - Chapel Hill
... sugar-phosphate backbone. Two nitrogen bases of the nucleotides face inward and form the rungs of the helix ladder. Adenine always binds to thymine. Cytosine always binds to guanine.. ...
... sugar-phosphate backbone. Two nitrogen bases of the nucleotides face inward and form the rungs of the helix ladder. Adenine always binds to thymine. Cytosine always binds to guanine.. ...
Class: 12 Subject: Biology Topic: Principles of
... 1. Polytene chromosome was first observed by A. Stevens and Wilson B. Heitz and Batier C. Balbiani D. Khorana Ans. C 2. Which one is soluble RNA A. tRNA B. mRNA C. rRNA D. snRNA Ans. A Solution: tRNA’s are short-chain RNA molecules present in the cell (in at least 20 varieties, each variety apable o ...
... 1. Polytene chromosome was first observed by A. Stevens and Wilson B. Heitz and Batier C. Balbiani D. Khorana Ans. C 2. Which one is soluble RNA A. tRNA B. mRNA C. rRNA D. snRNA Ans. A Solution: tRNA’s are short-chain RNA molecules present in the cell (in at least 20 varieties, each variety apable o ...
Unit 9 Test Review
... • A. A sequence of nucleotides on rRNA that corresponds to an amino acid • B. A sequence of nucleotides on mRNA that corresponds to an amino acid • C. A sequence of nucleotides on tRNA that corresponds to an amino acid • D. A sequence of nucleotides on DNA that corresponds to an amino acid ...
... • A. A sequence of nucleotides on rRNA that corresponds to an amino acid • B. A sequence of nucleotides on mRNA that corresponds to an amino acid • C. A sequence of nucleotides on tRNA that corresponds to an amino acid • D. A sequence of nucleotides on DNA that corresponds to an amino acid ...
Ethanol precipitation of DNA with salts
... of counterions lowers the effective charge density and relieves the repulsion between the strands. As for the effect of salt on hydrogen bonds; the hydrogen bonds formed between bases in duplex DNA contribute little to the stability of the duplex. For an interaction to stabilize the duplex, the inte ...
... of counterions lowers the effective charge density and relieves the repulsion between the strands. As for the effect of salt on hydrogen bonds; the hydrogen bonds formed between bases in duplex DNA contribute little to the stability of the duplex. For an interaction to stabilize the duplex, the inte ...
Document
... How is RNA different than DNA? •Ribose Sugar •Uracil for Thymine •Single strand •not self replicating •found all over the cell ...
... How is RNA different than DNA? •Ribose Sugar •Uracil for Thymine •Single strand •not self replicating •found all over the cell ...
Unit 4
... group than ribose, the sugar component of RNA, which ribose is the sugar component of RNA. List the nitrogen bases found in DNA, and distinguish between pyrimidine and purine. The nitrogen bases are adenine, guanine, cytosine, and thymine. A pyrimidine , in which cytosine and thymine belong to, have ...
... group than ribose, the sugar component of RNA, which ribose is the sugar component of RNA. List the nitrogen bases found in DNA, and distinguish between pyrimidine and purine. The nitrogen bases are adenine, guanine, cytosine, and thymine. A pyrimidine , in which cytosine and thymine belong to, have ...
Document
... The information is translated from the language of RNA—nucleotides—to the language of proteins—amino acids The RNA instructions are written as a series of three-nucleotide sequences on the mRNA called codons The genetic code of mRNA is the amino acids and “start” and “stop” signals that are coded f ...
... The information is translated from the language of RNA—nucleotides—to the language of proteins—amino acids The RNA instructions are written as a series of three-nucleotide sequences on the mRNA called codons The genetic code of mRNA is the amino acids and “start” and “stop” signals that are coded f ...
DNA Replication
... Components of DNA • NUCLEOTIDE – Phosphate group-phosphodiester bond – 5-Carbon sugar-deoxyribose – nucleic acid (1 of the nucleic acids) • Guanine-Purine • Cytosine-Pyrimidines • Adenine-Purine • Thymine-Pyrimidines • Held by hydrogen bonds • One end of chain with free 5’ phosphate group • Other e ...
... Components of DNA • NUCLEOTIDE – Phosphate group-phosphodiester bond – 5-Carbon sugar-deoxyribose – nucleic acid (1 of the nucleic acids) • Guanine-Purine • Cytosine-Pyrimidines • Adenine-Purine • Thymine-Pyrimidines • Held by hydrogen bonds • One end of chain with free 5’ phosphate group • Other e ...
Sem2 Final SG 12 Part1
... 3. What evidence do we have to support the theory of evolution by natural selection? 4. Describe the 3 key ingredients that lead to biological evolution. 5. What are homologous structures and what do they tell us about how organisms evolved? Protein Synthesis 6. What are transcription and translatio ...
... 3. What evidence do we have to support the theory of evolution by natural selection? 4. Describe the 3 key ingredients that lead to biological evolution. 5. What are homologous structures and what do they tell us about how organisms evolved? Protein Synthesis 6. What are transcription and translatio ...
D. Cell Specialization: Regulation of Transcription Cell
... there must be a molecular mechanism that keeps a cell differentiated. ...
... there must be a molecular mechanism that keeps a cell differentiated. ...
The Unseen Genome
... species. Although researchers don't know what makorin1 does, they do know that mice have lots of makorin1 pseudogenes and that none of them can make proteins. But if pseudogenes do nothing, why were these mice dying when they lost one? For some reason, makorin1--and apparently only makorin1 all but ...
... species. Although researchers don't know what makorin1 does, they do know that mice have lots of makorin1 pseudogenes and that none of them can make proteins. But if pseudogenes do nothing, why were these mice dying when they lost one? For some reason, makorin1--and apparently only makorin1 all but ...
1 Chapter 13: DNA, RNA, and Proteins Section 1: The Structure of
... IV. The Information in DNA A. The information in DNA is contained in the order of the bases, while the base-pairing structure allows the information to be copied B. Nitrogenous Bases 1. Each nucleotide has the same sugar and phosphate backbone 2. Bases are what is different (1 of 4) a. ...
... IV. The Information in DNA A. The information in DNA is contained in the order of the bases, while the base-pairing structure allows the information to be copied B. Nitrogenous Bases 1. Each nucleotide has the same sugar and phosphate backbone 2. Bases are what is different (1 of 4) a. ...
Genomics – The Language of DNA
... Alu elements consist of a sequence of 300 base pairs containing a site that is recognized by the restriction enzyme AluI. They appear to be reverse transcripts of 7S RNA, part of the signal recognition particle. Most SINEs do not encode any functional molecules and depend on the machinery of active ...
... Alu elements consist of a sequence of 300 base pairs containing a site that is recognized by the restriction enzyme AluI. They appear to be reverse transcripts of 7S RNA, part of the signal recognition particle. Most SINEs do not encode any functional molecules and depend on the machinery of active ...
495-Ze15
... replication, namely, strand separation and synthesis of new chains using parent chains as templates. The information containing in DNA molecule is transcribed into base sequence of RNA single chain macromolecule, than (during translation) this information is used for synthesis of protein chains, con ...
... replication, namely, strand separation and synthesis of new chains using parent chains as templates. The information containing in DNA molecule is transcribed into base sequence of RNA single chain macromolecule, than (during translation) this information is used for synthesis of protein chains, con ...
Gene Expression
... • Transcription moves coded information from DNA to the ribosome by creating an mRNA copy of a gene. • In translation, a ribosome “reads” the mRNA code and uses the information to assemble a chain of amino acids to make a protein. ...
... • Transcription moves coded information from DNA to the ribosome by creating an mRNA copy of a gene. • In translation, a ribosome “reads” the mRNA code and uses the information to assemble a chain of amino acids to make a protein. ...
Transcription and Processing
... a. What does this sequence represent? b. What do you predict will be the effect of such a mutation? Explain. Answer: a. The original sequence represents the –35 and –10 consensus sequences (with the correct number of intervening spaces) of a bacterial promoter. Sigma factor, as part of the RNA polym ...
... a. What does this sequence represent? b. What do you predict will be the effect of such a mutation? Explain. Answer: a. The original sequence represents the –35 and –10 consensus sequences (with the correct number of intervening spaces) of a bacterial promoter. Sigma factor, as part of the RNA polym ...
Key for Exam 1 Part 1 - Evolutionary Biology
... and DNA has four (D) RNA is a single strand polynucleotide and DNA is a double strand (E) RNA molecules are smaller than chromosomal DNA molecules 35. In the double helix of DNA, what belongs on the complimentary DNA strand opposite adenine? (A) thyamine (B) adenine (C) cytosine (D) guanine (E) urac ...
... and DNA has four (D) RNA is a single strand polynucleotide and DNA is a double strand (E) RNA molecules are smaller than chromosomal DNA molecules 35. In the double helix of DNA, what belongs on the complimentary DNA strand opposite adenine? (A) thyamine (B) adenine (C) cytosine (D) guanine (E) urac ...
Translation
... Shine Dalgarno box = Ribosome binding site Signal sequence in prokaryotic mRNA ~4-14 bp upstream from start codon Ribosome binding site to initiate translation 16s rRNA is part of 30S subunit **You will look for a “SD score” as one measure of a good start codon prediction. ...
... Shine Dalgarno box = Ribosome binding site Signal sequence in prokaryotic mRNA ~4-14 bp upstream from start codon Ribosome binding site to initiate translation 16s rRNA is part of 30S subunit **You will look for a “SD score” as one measure of a good start codon prediction. ...
DNA RNA Protein
... • In prokaryotes, ribosomes bind to specific translation initiation sites. There can be several different initiation sites on a messenger RNA: a prokaryotic mRNA can code for several different proteins. Translation begins at an AUG codon, or sometimes a GUG or UUG. The modified amino acid N-formyl m ...
... • In prokaryotes, ribosomes bind to specific translation initiation sites. There can be several different initiation sites on a messenger RNA: a prokaryotic mRNA can code for several different proteins. Translation begins at an AUG codon, or sometimes a GUG or UUG. The modified amino acid N-formyl m ...
Chapt 16: Other RNA Processing 16.1 Ribosomal RNA Processing
... • mRNA in eukaryotes frequently requires splicing, but does not undergo any trimming from ends • rRNA genes of both eukaryotes and bacteria are transcribed as larger precursors; must be processed to yield rRNAs of mature size • Several different rRNA molecules are embedded in a long, precursor; each ...
... • mRNA in eukaryotes frequently requires splicing, but does not undergo any trimming from ends • rRNA genes of both eukaryotes and bacteria are transcribed as larger precursors; must be processed to yield rRNAs of mature size • Several different rRNA molecules are embedded in a long, precursor; each ...
Chapter 25 Molecular Basis of Inheritance
... - James Watson and Francis Crick, determine the structure of DNA and build a model -sit explains how DNA, the genetic material, can vary from species to species and even from individual to individual -discovered the way DNA replicates so that daughter cells and offspring can receive a copy - a polyn ...
... - James Watson and Francis Crick, determine the structure of DNA and build a model -sit explains how DNA, the genetic material, can vary from species to species and even from individual to individual -discovered the way DNA replicates so that daughter cells and offspring can receive a copy - a polyn ...
Nucleic acid tertiary structure
![](https://commons.wikimedia.org/wiki/Special:FilePath/3IGI_v1.png?width=300)
The tertiary structure of a nucleic acid is its precise three-dimensional structure, as defined by the atomic coordinates. RNA and DNA molecules are capable of diverse functions ranging from molecular recognition to catalysis. Such functions require a precise three-dimensional tertiary structure. While such structures are diverse and seemingly complex, they are composed of recurring, easily recognizable tertiary structure motifs that serve as molecular building blocks. Some of the most common motifs for RNA and DNA tertiary structure are described below, but this information is based on a limited number of solved structures. Many more tertiary structural motifs will be revealed as new RNA and DNA molecules are structurally characterized.