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Lecture #8 Date
Lecture #8 Date

... abnormally long stretches of tandemly repeated nucleotide triplets within the affected gene. – Fragile X syndrome is caused by hundreds to thousands of repeats of CGG in the leader sequence of the fragile X gene.  Problems at this site lead to mental retardation. – Huntington’s disease, another neu ...
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... Hybridization – Cross btw dissimilar organisms- often involves crossing individuals of different species – create animals with characteristics of BOTH species ...
Molecular Genetics - The Bronx High School of Science
Molecular Genetics - The Bronx High School of Science

... • How does the ribosome use the mRNA and tRNA to synthesize proteins • Ribosome allows tRNA to bind with codon (triplet of bases on mRNA) if bases are ...
Centre for Cellular and Molecular Biology
Centre for Cellular and Molecular Biology

... It has been explained to me and I have understood that: ...
41040-2-12118
41040-2-12118

... controlled, experimental conditions. By observing consequences of such an intervention scientists can verify existing hypothesis and form new ones about the role of that particular gene, both in terms of phenotype and the expression levels of other genes. Although very advantageous, gene silencing h ...
Model organisms: the genes we share
Model organisms: the genes we share

... Model organisms: the genes we share Introduction In this activity you will discover why scientists use different organisms to study human genetics and human disease. Model organisms can be used to test hypotheses or treatments such as new drugs. With model organisms, answers to scientific questions ...
The Good, the bad and the ugly of Genetic Engineering
The Good, the bad and the ugly of Genetic Engineering

... Contains cells from fetus DNA or protein can be isolated and examined ...
DNA Replication Paper Clip Activity
DNA Replication Paper Clip Activity

... opposite to T, and C is opposite of G. You should have six clips left. Save them for later. ...
221_exam_2_2002
221_exam_2_2002

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Chapter 3 – Nucleic Acids and Protein Synthesis
Chapter 3 – Nucleic Acids and Protein Synthesis

... • To examine the structure of DNA • To compare the structure of DNA and RNA • To discuss the differences and similarities between mRNA and tRNA • To examine the role of the nucleus and nucleolus during RNA synthesis • To study the synthesis of proteins ...
AGB Definitions
AGB Definitions

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Plant Biotechnology
Plant Biotechnology

... strength of cotton 1.5%; insertion of a single gene > strength 60%!) ...
DNA
DNA

... • Genes are DNA –encoded information that specifies particular proteins; each gene is made of a specific sequence of nucleotides. • Genes are composed of coding and noncoding sequences. – Coding sequences are exons (code for amino acids) – Noncoding sequences are introns (intervening) ...
Powerpoint Presentation: Gene Transfer
Powerpoint Presentation: Gene Transfer

... mRNA from cells making the desired protein is extracted  Reverse transcriptase used to make cDNA  cDNA used to make gene probes  Gene located on a chromosome  Gene sequenced  Gene bracketed by sequences cut by a restriction enzyme  Gene cut out using restriction enzyme ...
DNA intro review - Ms Kim`s Biology Class
DNA intro review - Ms Kim`s Biology Class

... 7. Chargaff's rule states that the DNA of any species contains equal amounts of __________________ & ____________ and also equal amounts of __________________ & ____________________ 8. In DNA, thymine is complementary to ________________ ; cytosine is complementary to _____________ 9. In a strand of ...
Can environmental factors acting on an organism cause inherited
Can environmental factors acting on an organism cause inherited

... causes the offspring to distinguish between maternally and paternally inherited alleles. This can sometimes lead to the offspring expressing one of the two alleles but not both, this process is known as monoallelic expression. At the molecular level, imprinting has been known to involve DNA known as ...
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... individually, and the peptides bound together after translation. ...
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... accredited with the discovery of the structure of DNA 41. What is a dihybrid cross? Genetic test looking at two traits simultaneously ...
NAME DNA, RNA, and PROTEINS - BGHS-GRAVES-2011
NAME DNA, RNA, and PROTEINS - BGHS-GRAVES-2011

... ___________________ Carries the DNA code from nucleus to cytoplasm ___________________ Made by the nucleolus ___________________ Adds the correct amino acid to the growing protein chain ___________________ Combines with proteins to form ribosomes ...
江 苏 大 学 试 题 (A)卷
江 苏 大 学 试 题 (A)卷

... male-sterile line crossed with pollen from a wild-type (not sterile) line give all male-sterile plants. Some lines of corn carry a dominant allele of a different, nuclear gene. This "restorer" (or Rf) allele restores pollen fertility in male-sterile lines. If a male-sterile plant is crossed with pol ...
DNA Structure
DNA Structure

... • 1957: Meselson and Stahl labeled bacterial DNA with 15N 2 new DNA (1 old strand/1 new strand) ...
DNA and genetic information
DNA and genetic information

... • DNA polymerase can’t finish the 5’ ends • DNA would get 10 bases shorter each time replicated • Telomeres are “expendable” repetitive (TTAGGG) sequences at end of chromosomes • Telomerase restores telomers, present in germ-line cells and cancerous cells ...
handout for 6-27-13
handout for 6-27-13

... a. general functions b. how can proteins be so diverse? c. diagrams/example of protein structure and function d. DNA sequence to protein function e. design of new proteins KEY VOCABULARY Amino Acid Base (in DNA or RNA) DNA Polymerase Genetic Code Ribosome RNA Polymerase Transcription Translation DIS ...
DNA-Genetics Assessment Guide
DNA-Genetics Assessment Guide

... Word problems with descriptions of parents Information about the structure of DNA, cell cycle and genetics ...
Introduction to Genetics
Introduction to Genetics

... How do chromosomes become double stranded? Answer: DNA replication • During the life of the cell, each chromosome of DNA makes a copy of itself • This must occur prior to cell division to insure each daughter cell gets a complete set ...
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Helitron (biology)

A helitron is a transposon found in eukaryotes that is thought to replicate by a so-called ""rolling-circle"" mechanism. This category of transposons was discovered by Vladimir Kapitonov and Jerzy Jurka in 2001. The rolling-circle process begins with a break being made at the terminus of a single strand of the helitron DNA. Transposase then sits at this break and at another break where the helitron targets as a migration site. The strand is then displaced from its original location at the site of the break and attached to the target break, forming a circlular heteroduplex. This heteroduplex is then resolved into a flat piece of DNA via replication. During the rolling-circle process, DNA can be replicated beyond the initial helitron sequence, resulting in the flanking regions of DNA being ""captured"" by the helitron as it moves to a new location.
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