Chapter 14 notes
... dominant alleles, that are expressed even if a recessive allele is present. Examples: achondroplasia, Huntington’s disease, hypercholesterolemia Co-dominant alleles (2 dominant alleles) cause other disorders. Example Sickle Cell Anemia Go over all the disorders in your textbook. ...
... dominant alleles, that are expressed even if a recessive allele is present. Examples: achondroplasia, Huntington’s disease, hypercholesterolemia Co-dominant alleles (2 dominant alleles) cause other disorders. Example Sickle Cell Anemia Go over all the disorders in your textbook. ...
T1_studyguide_2011_12
... 10. Prokaryotic- bacteria, lacks a nucleus; Eukaryotic- has a nucleus, us. Lessons RST 11. Non-living particle made up of genetic material and protein. 12. Host cell ...
... 10. Prokaryotic- bacteria, lacks a nucleus; Eukaryotic- has a nucleus, us. Lessons RST 11. Non-living particle made up of genetic material and protein. 12. Host cell ...
name
... Earth’s Early History (Chapter 19) 1. Gases in the early atmosphere are? 2. Miller & Urey Apparatus – what did they produce? ...
... Earth’s Early History (Chapter 19) 1. Gases in the early atmosphere are? 2. Miller & Urey Apparatus – what did they produce? ...
Inheritance matching
... This describes the genetic makeup of an individual regarding a particular characteristic, e.g, Ff, ff. ...
... This describes the genetic makeup of an individual regarding a particular characteristic, e.g, Ff, ff. ...
Meiosis The main reason we have meiosis is for sexual reproduction
... on which cell division we're going through (we need two cell divisions to get to four cells total). We use the terms “Meiosis I” and “Meiosis II” to refer to these. [OVERHEAD, fig. 8.13, p. 138 - 139] Starts almost the same way as mitosis, with an interphase. Chromosomes are not visible, but have be ...
... on which cell division we're going through (we need two cell divisions to get to four cells total). We use the terms “Meiosis I” and “Meiosis II” to refer to these. [OVERHEAD, fig. 8.13, p. 138 - 139] Starts almost the same way as mitosis, with an interphase. Chromosomes are not visible, but have be ...
Medical Genetics 2013
... D. One or more close relatives are affected by the same rare tumor E. Two or more independent primary tumors in a single individual 3. Why is familial retinoblastoma known to be inherited as an autosomal dominant trait when the responsible gene is recessive? A. This recessive gene needs only one cop ...
... D. One or more close relatives are affected by the same rare tumor E. Two or more independent primary tumors in a single individual 3. Why is familial retinoblastoma known to be inherited as an autosomal dominant trait when the responsible gene is recessive? A. This recessive gene needs only one cop ...
Nucleus - Control Center of cell
... • Chromatin is a substance that contains DNA and proteins. • each strand of chromatin is one molecule of DNA in the nucleus. • During cell growth DNA uncoils and creates proteins. • Chromatin coils into Chromosomes (x shaped structure) when cells ready to divide ...
... • Chromatin is a substance that contains DNA and proteins. • each strand of chromatin is one molecule of DNA in the nucleus. • During cell growth DNA uncoils and creates proteins. • Chromatin coils into Chromosomes (x shaped structure) when cells ready to divide ...
4.3.5 Sex Chromosomes and Sex Linkage Questions
... 4.3.5 Sex Chromosomes and Sex Linkage Questions e. In the space below, complete a punnet grid to show a cross between a normal male and a carrier female. What is the expected ratio of F1 phenotypes? ...
... 4.3.5 Sex Chromosomes and Sex Linkage Questions e. In the space below, complete a punnet grid to show a cross between a normal male and a carrier female. What is the expected ratio of F1 phenotypes? ...
Biology Final Exam Multiple Choice Identify the choice that best
... a. examples of fossils. b. vestigial structures. c. acquired traits. d. examples of natural variation. ...
... a. examples of fossils. b. vestigial structures. c. acquired traits. d. examples of natural variation. ...
PPT File
... For example, humans have three genes responsible for color vision, all located on the X chromosome. ...
... For example, humans have three genes responsible for color vision, all located on the X chromosome. ...
Biology WarmUp: Meiosis Vocabulary Review 1. What does it
... Biology WarmUp: Meiosis Vocabulary Review 6. In fruit flies, the gene for star eye and speck wing are on the same chromosome, yet offspring from star-eyed, speckwinged parents often inherit star eyes without the speck wings. How is this possible? Make a diagram to illustrate the process that is res ...
... Biology WarmUp: Meiosis Vocabulary Review 6. In fruit flies, the gene for star eye and speck wing are on the same chromosome, yet offspring from star-eyed, speckwinged parents often inherit star eyes without the speck wings. How is this possible? Make a diagram to illustrate the process that is res ...
Mysterious Meiosis
... Homologous pairs partner up Synapsis...Attaches homologous chromosomes tightly together into a tetrad Crossing over occurs now Spindle fibers form, nuclear membrane disappears ...
... Homologous pairs partner up Synapsis...Attaches homologous chromosomes tightly together into a tetrad Crossing over occurs now Spindle fibers form, nuclear membrane disappears ...
Document
... C17. A tetrad contains four spores; an octad contains eight. In a tetrad, meiosis produces four spores. In an octad, meiosis produces four cells, and then they all go through mitosis to double the number to eight cells. C18. In an unordered ascus, the products of meiosis are free to move around. In ...
... C17. A tetrad contains four spores; an octad contains eight. In a tetrad, meiosis produces four spores. In an octad, meiosis produces four cells, and then they all go through mitosis to double the number to eight cells. C18. In an unordered ascus, the products of meiosis are free to move around. In ...
C1. Genetic recombination is a term that refers to a new combination
... C17. A tetrad contains four spores; an octad contains eight. In a tetrad, meiosis produces four spores. In an octad, meiosis produces four cells, and then they all go through mitosis to double the number to eight cells. C18. In an unordered ascus, the products of meiosis are free to move around. In ...
... C17. A tetrad contains four spores; an octad contains eight. In a tetrad, meiosis produces four spores. In an octad, meiosis produces four cells, and then they all go through mitosis to double the number to eight cells. C18. In an unordered ascus, the products of meiosis are free to move around. In ...
ppt_Genetics1
... • Round is dominant to wrinkled in peas • Yellow is dominant to green peas • A dominant trait masks the effect of a recessive trait • Mendel’s scientific work was ignored for about 40 years ...
... • Round is dominant to wrinkled in peas • Yellow is dominant to green peas • A dominant trait masks the effect of a recessive trait • Mendel’s scientific work was ignored for about 40 years ...
eprint_12_11727_866
... During mitosis replicated chromosomes are positioned near the middle of the cytoplasm and then segregated so that each daughter cell receives a copy of the original DNA (if you start with 46 in the parent cell, you should end up with 46 chromosomes in each daughter cell). To do this cells utilize m ...
... During mitosis replicated chromosomes are positioned near the middle of the cytoplasm and then segregated so that each daughter cell receives a copy of the original DNA (if you start with 46 in the parent cell, you should end up with 46 chromosomes in each daughter cell). To do this cells utilize m ...
Chapter 7: Sex Determination and Sex Chromosomes
... milkweed bug and found that the females have 2 X chromosomes, while males have only one X and a smaller heterochromosome called the Y. In the first model, called the Protenor model, the genders are written XX or XO. In the second model, Lygaeus, the genders are written XX or XY. In some cases, the ...
... milkweed bug and found that the females have 2 X chromosomes, while males have only one X and a smaller heterochromosome called the Y. In the first model, called the Protenor model, the genders are written XX or XO. In the second model, Lygaeus, the genders are written XX or XY. In some cases, the ...
7.1 Reinforcement
... different alleles. Both copies of a gene can affect phenotype. Much of what has been learned about human genes comes from studies of genetic disorders. Many genetic disorders are caused by recessive alleles on autosomes. People who have one dominant allele and one recessive, disorder-causing allele, ...
... different alleles. Both copies of a gene can affect phenotype. Much of what has been learned about human genes comes from studies of genetic disorders. Many genetic disorders are caused by recessive alleles on autosomes. People who have one dominant allele and one recessive, disorder-causing allele, ...
UNIT 4 PART1 MODERN GENETICS
... each factor could be one of two kinds. For example, one factor for green pod color and one for yellow pod color. • In a cross, the offspring receives one factor from each parent. • In a hybrid one factor may be hidden, but show itself again in later generations when fertilization brings together two ...
... each factor could be one of two kinds. For example, one factor for green pod color and one for yellow pod color. • In a cross, the offspring receives one factor from each parent. • In a hybrid one factor may be hidden, but show itself again in later generations when fertilization brings together two ...
AP Bio
... • The only possible gametes are AB and ab… • BUT, wierdly, when scored… a few offspring did illustrate the unexpected: A_bb and aaB_ ...
... • The only possible gametes are AB and ab… • BUT, wierdly, when scored… a few offspring did illustrate the unexpected: A_bb and aaB_ ...
Elementary Genetics Powerpoint
... Some traits are dominant while others are recessive You inherit one chromosome from each parent (each with a trait marker) You will exhibit the trait which is dominant ...
... Some traits are dominant while others are recessive You inherit one chromosome from each parent (each with a trait marker) You will exhibit the trait which is dominant ...
Genetics Vocabulary
... DNA — (deoxyribonucleic acid) A specialized molecule that contains the genetic information that allows characteristics to be passed from parents to offspring. The information contained in the DNA molecule provides a “blueprint,” or a set of codes, for building other molecules used by the cell. ...
... DNA — (deoxyribonucleic acid) A specialized molecule that contains the genetic information that allows characteristics to be passed from parents to offspring. The information contained in the DNA molecule provides a “blueprint,” or a set of codes, for building other molecules used by the cell. ...
11-3- Exploring Mendelian Genetics
... individual units known as _____________. In organisms that reproduce sexually, genes are passed from parents to their ____________________. 2. In cases in which 2 or more forms (or _____________) of the gene for a single ___________exist, some forms of the gene may be dominant and others ___________ ...
... individual units known as _____________. In organisms that reproduce sexually, genes are passed from parents to their ____________________. 2. In cases in which 2 or more forms (or _____________) of the gene for a single ___________exist, some forms of the gene may be dominant and others ___________ ...
Chapter 27: Human Genetics Vocabulary
... cY colorblind male 5 Males inherit the gene for color vision from their mother only. Females inherit a gene from both their mother and father. ...
... cY colorblind male 5 Males inherit the gene for color vision from their mother only. Females inherit a gene from both their mother and father. ...
Mendel and Meiosis
... Portions of the chromatid breaks off and attaches to adjacent chromatids on the homologous chromosome Permits the exchange of genetic material between maternal and paternal chromosomes •Occurs during Prophase ...
... Portions of the chromatid breaks off and attaches to adjacent chromatids on the homologous chromosome Permits the exchange of genetic material between maternal and paternal chromosomes •Occurs during Prophase ...
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.