Chapter 12 Notes
... Hemophilia: Sex-linked. Missing factor 9 the protein need for blood to clot. Down’s Syndrome: Nondisjunction of the 21st chromosome. Trisomy 21. Developmentally ...
... Hemophilia: Sex-linked. Missing factor 9 the protein need for blood to clot. Down’s Syndrome: Nondisjunction of the 21st chromosome. Trisomy 21. Developmentally ...
rss_genetics_lesson
... probability of genetic combinations • Example: When two heterozygous brown eyes mate . . . B ...
... probability of genetic combinations • Example: When two heterozygous brown eyes mate . . . B ...
Chapter 12 Cell Cycle Functions of cell division. . Phases of the cell
... 1. Know the chromosomal theory of inheritance. 2. Why Drosophila melanogaster is a good experimental organism for genetic studies? What was the result of Morgan's experiment on Drosophila melanogaster? 4. Explain why sex-linked diseases are more common in human males. 5. Why linked genes do not asso ...
... 1. Know the chromosomal theory of inheritance. 2. Why Drosophila melanogaster is a good experimental organism for genetic studies? What was the result of Morgan's experiment on Drosophila melanogaster? 4. Explain why sex-linked diseases are more common in human males. 5. Why linked genes do not asso ...
Cell reproduction PPT
... use original parent strand as “template” add new matching bases synthesis enzyme = DNA polymerase ...
... use original parent strand as “template” add new matching bases synthesis enzyme = DNA polymerase ...
Meiosis I - My Teacher Site
... Prophase I - typically occupies more than 90% of the time required for meiosis ...
... Prophase I - typically occupies more than 90% of the time required for meiosis ...
BACTERIAL GENETICS
... 1) Homologous recombination: in which two pieces of DNA that has extensive homologous regions pair up and exchange pieces by the process of breakage and reunion 2) Non homologous recombination in which little if any homology is necessary What is Gene Therapy? Gene therapy is the insertion of genes ...
... 1) Homologous recombination: in which two pieces of DNA that has extensive homologous regions pair up and exchange pieces by the process of breakage and reunion 2) Non homologous recombination in which little if any homology is necessary What is Gene Therapy? Gene therapy is the insertion of genes ...
Human Heredity: Chapter 14
... • Entire set or sets of chromosomes fail to separate • Fatal in animals • In plants, leads to larger, hardier plants ...
... • Entire set or sets of chromosomes fail to separate • Fatal in animals • In plants, leads to larger, hardier plants ...
English 9 - Edmentum Support
... Salting of fish leads to diffusion of water from the salt into the fish, making it juicier and helping in preservation of the fish. Salting of fish leads to diffusion of water out of the fish, causing removal of water, making the fish drier, and thus helping in preservation. Salting of fish leads to ...
... Salting of fish leads to diffusion of water from the salt into the fish, making it juicier and helping in preservation of the fish. Salting of fish leads to diffusion of water out of the fish, causing removal of water, making the fish drier, and thus helping in preservation. Salting of fish leads to ...
94 Didn`t you notice the conversation between the grandmother and
... The Branch of Science that Transforms the Living World The genetic revolution that was started by Gregor Mendel in pea plants has developed to such an extent that today it influences all sections of society. The knowledge we have gained about genes and the technology that alters genetic structure ar ...
... The Branch of Science that Transforms the Living World The genetic revolution that was started by Gregor Mendel in pea plants has developed to such an extent that today it influences all sections of society. The knowledge we have gained about genes and the technology that alters genetic structure ar ...
Genetics of AHC - Alternating Hemiplegia of Childhood Foundation
... inherited from a parent, but is a new mutation in a child. Mutations can occur in the creation of the egg or sperm or when the embryo is created. Changes the recurrence risk ...
... inherited from a parent, but is a new mutation in a child. Mutations can occur in the creation of the egg or sperm or when the embryo is created. Changes the recurrence risk ...
Chapter 11: Intro. to Genetics
... • Polygenic traits- traits formed by two or more traits. – Example: skin color…more than four different genes control this trait ...
... • Polygenic traits- traits formed by two or more traits. – Example: skin color…more than four different genes control this trait ...
Molecular Biology
... • Telomere problem: Ends of chromosomes difficult to copy - lose a little DNA each time The good news: telomeres do not code for anything The bad news: telomeres are only so long. ...
... • Telomere problem: Ends of chromosomes difficult to copy - lose a little DNA each time The good news: telomeres do not code for anything The bad news: telomeres are only so long. ...
DNA Packaging and Ch..
... An organism’s task in managing its DNA: 1.) Efficient packaging and storage, to fit into very small spaces (2.3 million times smaller) 2.) Requires “de-packaging” of DNA to access correct genes at the correct time (gene expression). 3.) Accurate DNA replication during the Sphase of the cell-cycle. ...
... An organism’s task in managing its DNA: 1.) Efficient packaging and storage, to fit into very small spaces (2.3 million times smaller) 2.) Requires “de-packaging” of DNA to access correct genes at the correct time (gene expression). 3.) Accurate DNA replication during the Sphase of the cell-cycle. ...
Genetics-HEREDITY Unit Overview
... Mendel crossed a true-breeding plant that produced green seeds with a true-breeding plant that produced yellow seeds to produce an F1 generation. The entire F1 generation produced yellow seeds. Then he crossed the F1 offspring with each other to produce the F2 generation. From the F2 generation, he ...
... Mendel crossed a true-breeding plant that produced green seeds with a true-breeding plant that produced yellow seeds to produce an F1 generation. The entire F1 generation produced yellow seeds. Then he crossed the F1 offspring with each other to produce the F2 generation. From the F2 generation, he ...
View PDF
... 4.6 million bases = 4,400 genes, 1/1000th DNA in Human somatic cells. DNA fills nucleoid-dense region of DNA. In addition have plasmids ( several dozen genes). Divide by binary fission. Fig. 18.14 Replication of Bacterial DNA-single origin of replication and synthesis in both directions. Bacteria ca ...
... 4.6 million bases = 4,400 genes, 1/1000th DNA in Human somatic cells. DNA fills nucleoid-dense region of DNA. In addition have plasmids ( several dozen genes). Divide by binary fission. Fig. 18.14 Replication of Bacterial DNA-single origin of replication and synthesis in both directions. Bacteria ca ...
Chapter 7 Study Guides
... 10. What does a karyotype show about chromosomes? Changes in chromosomes such as loss or gain of part of a chromosome. ...
... 10. What does a karyotype show about chromosomes? Changes in chromosomes such as loss or gain of part of a chromosome. ...
GENETICS NOTES OUTLINE wksht
... 5. The long-eared allele (L) is dominant to the short-eared allele (l). Cross a homozygous long ear with a homozygous short-ear. Then cross the F1 generation and give the F2 results. ...
... 5. The long-eared allele (L) is dominant to the short-eared allele (l). Cross a homozygous long ear with a homozygous short-ear. Then cross the F1 generation and give the F2 results. ...
Handout
... made up of phosphate-linked deoxyribose sugar groups, each of which bears a side group of one of the four ...
... made up of phosphate-linked deoxyribose sugar groups, each of which bears a side group of one of the four ...
Ch. 7 PowerPoint Notes
... • One cell gets almost all of the cytoplasm – The other is called a polar body • Can divide again, but will not survive ...
... • One cell gets almost all of the cytoplasm – The other is called a polar body • Can divide again, but will not survive ...
Genetic Engineering
... Use bacterium to transfer a plasmid into the plant cells They can also remove the cell wall and allow the DNA to enter directly ...
... Use bacterium to transfer a plasmid into the plant cells They can also remove the cell wall and allow the DNA to enter directly ...
Genetics Teacher Notes
... • Radiation, organic chemicals, or even viruses may cause chromosomes to break, leading to mutations. • Types of chromosomal mutations: inversion, translocation, deletion, and duplication. ...
... • Radiation, organic chemicals, or even viruses may cause chromosomes to break, leading to mutations. • Types of chromosomal mutations: inversion, translocation, deletion, and duplication. ...
Figures from Chapter 3
... Sickle-Cell Anemia • Incomplete dominance – carriers show signs of having recessive trait – Will not have the disease, but sickling episodes ...
... Sickle-Cell Anemia • Incomplete dominance – carriers show signs of having recessive trait – Will not have the disease, but sickling episodes ...
Chromosome
A chromosome (chromo- + -some) is a packaged and organized structure containing most of the DNA of a living organism. It is not usually found on its own, but rather is complexed with many structural proteins called histones as well as associated transcription (copying of genetic sequences) factors and several other macromolecules. Two ""sister"" chromatids (half a chromosome) join together at a protein junction called a centromere. Chromosomes are normally visible under a light microscope only when the cell is undergoing mitosis. Even then, the full chromosome containing both joined sister chromatids becomes visible only during a sequence of mitosis known as metaphase (when chromosomes align together, attached to the mitotic spindle and prepare to divide). This DNA and its associated proteins and macromolecules is collectively known as chromatin, which is further packaged along with its associated molecules into a discrete structure called a nucleosome. Chromatin is present in most cells, with a few exceptions - erythrocytes for example. Occurring only in the nucleus of eukaryotic cells, chromatin composes the vast majority of all DNA, except for a small amount inherited maternally which is found in mitochondria. In prokaryotic cells, chromatin occurs free-floating in cytoplasm, as these cells lack organelles and a defined nucleus. The main information-carrying macromolecule is a single piece of coiled double-stranded DNA, containing many genes, regulatory elements and other noncoding DNA. The DNA-bound macromolecules are proteins, which serve to package the DNA and control its functions. Chromosomes vary widely between different organisms. Some species such as certain bacteria also contain plasmids or other extrachromosomal DNA. These are circular structures in the cytoplasm which contain cellular DNA and play a role in horizontal gene transfer.Compaction of the duplicated chromosomes during cell division (mitosis or meiosis) results either in a four-arm structure (pictured to the right) if the centromere is located in the middle of the chromosome or a two-arm structure if the centromere is located near one of the ends. Chromosomal recombination during meiosis and subsequent sexual reproduction plays a vital role in genetic diversity. If these structures are manipulated incorrectly, through processes known as chromosomal instability and translocation, the cell may undergo mitotic catastrophe and die, or it may unexpectedly evade apoptosis leading to the progression of cancer.In prokaryotes (see nucleoids) and viruses, the DNA is often densely packed and organized. In the case of archaea by homologs to eukaryotic histones, in the case of bacteria by histone-like proteins. Small circular genomes called plasmids are often found in bacteria and also in mitochondria and chloroplasts, reflecting their bacterial origins.