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Discovering the material for heredity: DNA
Discovering the material for heredity: DNA

... redundancy of the genetic code. Example: The mutation that changes AUU to AUC still codes for the same amino acid, isoleucine. Thus, the polypeptide created would be identical to that made by the un-mutated form of the gene. ...
GENETICS
GENETICS

... Gregor Mendel, an Austrian monk, worked out the basic patterns of simple inheritance in 1860, long before chromosomes or genes were associated with inheritance. Mendel’s work correctly identified the existence of the units of inheritance now known as genes. ...
BIOL10005: Genetics and the Evolution of Life
BIOL10005: Genetics and the Evolution of Life

... The method of DNA replication where the new molecule of DNA has one strand which comes from the parent molecule and one strand which is newly synthesised Nucleotides or nucleotide sequences that are able to base pair, for example G and C are complementary, as are A and T One of the two types of nitr ...
BINF 730 Biological Sequence Analysis Lecture 1 Biological
BINF 730 Biological Sequence Analysis Lecture 1 Biological

... • RNA does not form a double helix • RNA may have a complex three-dimensional structure ...
student notes protein synthesis mutation
student notes protein synthesis mutation

... a. base sequence in DNA determines the base sequence in the RNA molecule 4. transcription ends at the ________________________________ ______on the DNA molecule a. indicates the end of a ___________or a group of genes 5. m-RNA, t-RNA and r-RNA may be made ...
Genetics Unit Study guide
Genetics Unit Study guide

... What is a tetrad? During which phase are they present? What is crossing over? During which phase does it occur? What is the structure that moves chromosomes during nuclear division? ...
Control of Gene Expression
Control of Gene Expression

Topic 3 The Chemistry of Life - wfs
Topic 3 The Chemistry of Life - wfs

... 3. The exposed bases of each strand are then paired with an available nucleotide by complementary base pairing. The result is two strands where only one was first present. 4. DNA polymerase is an enzyme that allows the connection between nucleotides lined up by basepairing. 5. This replication is ca ...
BIOLOGY I Study Guide # 5: Topic – Genetics 1 Name: Define:
BIOLOGY I Study Guide # 5: Topic – Genetics 1 Name: Define:

... 15. The sequencing of human chromosomes 21 and 22 showed that a. some regions of chromosomes do not code for proteins. b. all of the DNA of chromosomes codes for proteins. c. different chromosomes have the same number of genes. 16. Which of the following form(s) a Barr body? a. the Y chromosome in a ...
Molecular Genetics Review
Molecular Genetics Review

... Leading strand vs. lagging strand Okazaki fragments Pro vs. Eukaryotic replication ...
Gen660_Week4a_HGT_2014
Gen660_Week4a_HGT_2014

... DNA Transfer A. Transformation: direct uptake of naked DNA • Donor and recipient do NOT need to co-exist in the same time/space • Can occur across distantly related species • Efficiency depends on ‘competency’ of recipient Some species readily take up DNA Other species have transient (e.g. stress/st ...
1) Definition of the gene
1) Definition of the gene

... MOST GENES: A COPY FROM THE MATERNAL DNA, AND FROM THE PATERNAL DATA. ...
The Chromosome Theory of Inheritance
The Chromosome Theory of Inheritance

... F2: mutant allele must be located on the ...
RNA-Unit 6 cont.
RNA-Unit 6 cont.

...  61 code for amino acids (20 possibilities)  1 codes to start = AUG = methionine ...
Chapter 7 Extending Mendelian Genetics
Chapter 7 Extending Mendelian Genetics

... follow a set of patterns that can be easily recorded in pedigrees.  A Pedigree is a chart that can help trace the phenotypes and genotypes in a family for a particular trait.  Autosomal traits are easily traced since the traits will follow a Mendelian punnett square.  Sex linked traits leave a di ...
gene duplication
gene duplication

... but most genes actually code for multiple proteins because they join different “exons” the executable or coding portions of a gene together to make different proteins. This process is called alternative splicing. ...
Heredity and Genetics Vocabulary
Heredity and Genetics Vocabulary

... Selective breeding – Only mating organisms with desirable traits. Clone – An organism that is genetically identical to the parent organism DNA – Deoxyribonucleic acid – The molecule that is the base of all chromosomes Four bases of DNA – Adenine and Thymine; Guanine and Cytosine Heredity – The passi ...
Multiple Choice
Multiple Choice

... a. each with two new strands. b. one with two new strands and the other with two original strands. c. each with one new strand and one original strand. d. each with two original strands. ____ 4. During mitosis, the a. DNA molecules unwind. b. histones and DNA molecules separate. c. DNA molecules bec ...
Tutorial_12 (2014)
Tutorial_12 (2014)

... • BLAT on DNA is designed to quickly find sequences of 95% and greater similarity of length 25 bases or more. • BLAT is not BLAST. DNA BLAT works by keeping an index of the entire genome in memory. The index consists of all overlapping 11-mers stepping by 5. • Protein BLAT works in a similar manner ...
File
File

... structure of the ___________________ “coded” by that gene. Each chromosome contains thousands of genes, each one controlling the structure of one protein or enzyme made by the cell. ...
Proteomes, Genes and Junk DNA
Proteomes, Genes and Junk DNA

... The entire range of genes of an organism (or a species) comprises its genome. Since the genes specify the organism's proteins, the genome specifies the proteome – the entire range of proteins of an organism (or a species). Other RNAs It seems that many types of RNA other than mRNA and tRNA are impor ...
Notes Unit 4 Part 7
Notes Unit 4 Part 7

... completely complementary strand of RNA known as mRNA  exons = DNA sequences that ________ for proteins *** What would be the base sequence of mRNA if DNA is CGTAATTGCGCA?*** D. Translation = the decoding of the __________ message into a ________________  Translation occurs on _______________. If p ...
Discovery of Introns
Discovery of Introns

... T antigen at all! The expected deletion of an interior segment of the T antigen does not occur. If these antigen proteins reflect their genes, this doesn’t make any sense at all, as both t and T are read from the same nucleotides in the same reading frame (see chapter 13). How can it be a deletion a ...
Transcription & Translation
Transcription & Translation

... At one end of the tRNA molecule are three bases that make up an anti-codon (complimentary to a codon) ...
Barbara McClintock
Barbara McClintock

... By Kalim Kassim and Tim Milsom ...
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Gene



A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term ""having a gene"" (e.g., ""good genes,"" ""hair colour gene"") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.The concept of a gene continues to be refined as new phenomena are discovered. For example, regulatory regions of a gene can be far removed from its coding regions, and coding regions can be split into several exons. Some viruses store their genome in RNA instead of DNA and some gene products are functional non-coding RNAs. Therefore, a broad, modern working definition of a gene is any discrete locus of heritable, genomic sequence which affect an organism's traits by being expressed as a functional product or by regulation of gene expression.
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