Integrated Science II
... e. Are these gamete cells diploid or haploid? Explain how you know. 3. In Step 4 you combined the two piles together in order to produce an offspring. a. In the real world, what is the name of the process where the male and female gametes combine? b. What is the name of the cell resulting from this ...
... e. Are these gamete cells diploid or haploid? Explain how you know. 3. In Step 4 you combined the two piles together in order to produce an offspring. a. In the real world, what is the name of the process where the male and female gametes combine? b. What is the name of the cell resulting from this ...
Inheritance
... Assortment leads to many possibilities as far as gamete formation goes. For any genome it can be calculated as 2n, where n=the number of chromosome pairs. ...
... Assortment leads to many possibilities as far as gamete formation goes. For any genome it can be calculated as 2n, where n=the number of chromosome pairs. ...
Genetic Keywords - St. Jude Children`s Research Hospital
... change (mutation) is present in one or more genes within the body’s cells. Hereditary: Passed down from one generation to the next within a family. ...
... change (mutation) is present in one or more genes within the body’s cells. Hereditary: Passed down from one generation to the next within a family. ...
Human Genes
... Duchenne muscular dystrophy is a _________________ disorder that results in the weakening and loss of _______________ muscle. It is caused by a defective version of the gene that codes for a ___________ ____________. X-Chromosome Inactivation British geneticist Mary Lyon discovered that in female ce ...
... Duchenne muscular dystrophy is a _________________ disorder that results in the weakening and loss of _______________ muscle. It is caused by a defective version of the gene that codes for a ___________ ____________. X-Chromosome Inactivation British geneticist Mary Lyon discovered that in female ce ...
sickle-shaped
... Prenatal Testing Chorionic villi sampling- performed at 810 weeks. A sample is taken from the villi that extend down into the mother’s uterus. The villi contain the same genetic information as the fetus so the cells can be used to construct a karyotype to detect genetic abnormalities in the fetus. ...
... Prenatal Testing Chorionic villi sampling- performed at 810 weeks. A sample is taken from the villi that extend down into the mother’s uterus. The villi contain the same genetic information as the fetus so the cells can be used to construct a karyotype to detect genetic abnormalities in the fetus. ...
Spring 2011 Midterm Review Answers
... climates – some more desert-like and others more tropical. He observed that the characteristics of many animals and plants varied noticeably among the different islands. His studies of his samples and observations lead him to realize that similar species had adapted to the different climate and ...
... climates – some more desert-like and others more tropical. He observed that the characteristics of many animals and plants varied noticeably among the different islands. His studies of his samples and observations lead him to realize that similar species had adapted to the different climate and ...
GENETIC DISORDERS
... • Down syndrome and spina bifida common tests • Amniocentesis - genetically testing of fetus between weeks 14 to 20 of pregnancy. • Chorionic villus sampling is also used. – Tissue surrounding the fetus is removed and tested. • These tests have risks and are used only if concerns arise ...
... • Down syndrome and spina bifida common tests • Amniocentesis - genetically testing of fetus between weeks 14 to 20 of pregnancy. • Chorionic villus sampling is also used. – Tissue surrounding the fetus is removed and tested. • These tests have risks and are used only if concerns arise ...
II - Wsfcs
... provides some additional explanations about 6 steps needed for mitosis to occur. 1. DNA is copied; this is called DNA ___________________. 2. DNA is wound tightly into compact chromosomes (each with two sister _______________). These compact chromosomes are easier to move than the long thin chromoso ...
... provides some additional explanations about 6 steps needed for mitosis to occur. 1. DNA is copied; this is called DNA ___________________. 2. DNA is wound tightly into compact chromosomes (each with two sister _______________). These compact chromosomes are easier to move than the long thin chromoso ...
File
... 6. Differentiate between genotype and phenotype 7. Differentiate between dominant and recessive 8. Show the inheritance to the F1 generation in a cross involving: • Homozygous parents • Heterozygous parents • Sex determination • Show the genotypes of parents, gametes and offspring ...
... 6. Differentiate between genotype and phenotype 7. Differentiate between dominant and recessive 8. Show the inheritance to the F1 generation in a cross involving: • Homozygous parents • Heterozygous parents • Sex determination • Show the genotypes of parents, gametes and offspring ...
separate PDF document
... gene controls the development of a specific characteristic of the living organism (such as eye color). Each gene has its own position (or "locus") on its chromosome. Some genes have one or more variants that together comprise a group, one variant of which can occur at the gene's locus. An allele ref ...
... gene controls the development of a specific characteristic of the living organism (such as eye color). Each gene has its own position (or "locus") on its chromosome. Some genes have one or more variants that together comprise a group, one variant of which can occur at the gene's locus. An allele ref ...
Unit 4 review questions
... 3. What is a somatic cell? What is the generic term applied to sperm and egg cells? 4. Draw a tetrad. Explain the origin of each chromatid in the tetrad. 5. List and describe the events in meiosis. 6. How do the events of metaphase of mitosis compare to the events in metaphase I of meiosis? Metaphas ...
... 3. What is a somatic cell? What is the generic term applied to sperm and egg cells? 4. Draw a tetrad. Explain the origin of each chromatid in the tetrad. 5. List and describe the events in meiosis. 6. How do the events of metaphase of mitosis compare to the events in metaphase I of meiosis? Metaphas ...
Chapter 14 Human Genetics - Hollidaysburg Area School
... Some of the most obvious traits are impossible to trace to a single gene. This is due to two main reasons: 1. They are polygenic. 2. Many traits are influenced by the environment. For example, improved health practices since the 1800s in the U.S. has caused greater height. Environmental effects ...
... Some of the most obvious traits are impossible to trace to a single gene. This is due to two main reasons: 1. They are polygenic. 2. Many traits are influenced by the environment. For example, improved health practices since the 1800s in the U.S. has caused greater height. Environmental effects ...
CHAPTER 8 (CHOMOSOME MUTATION: CHANGES IN
... 1. Interstitial (Not at the end of the chromosome) 2. Terminal (Near the end of the chromosome) B. Deletions require two breaks in the chromosome followed by loss of the chromosomal segment and rejoining of the ends. C. The deleted fragment is acentric (without a centromere) and will be lost upon mu ...
... 1. Interstitial (Not at the end of the chromosome) 2. Terminal (Near the end of the chromosome) B. Deletions require two breaks in the chromosome followed by loss of the chromosomal segment and rejoining of the ends. C. The deleted fragment is acentric (without a centromere) and will be lost upon mu ...
Genome Shock in Polyploid Plants
... • Polyploids represent a source of genetic novelty upon which selection may act. • Many of the world's most successful crop species are polyploids (bread wheat, coffee, cotton, sugarcane, maize) and often significantly outperform their diploid relatives. ...
... • Polyploids represent a source of genetic novelty upon which selection may act. • Many of the world's most successful crop species are polyploids (bread wheat, coffee, cotton, sugarcane, maize) and often significantly outperform their diploid relatives. ...
7.1 Chromosomes and Phenotype
... • Read the quote in small black text (under • connecting concepts) on page 199. Why is • there such a variation in eye color? ...
... • Read the quote in small black text (under • connecting concepts) on page 199. Why is • there such a variation in eye color? ...
Variation and Genetics.
... • This can lead to the problems of inbreeding as all the animals or plants that are left are genetically closely related to each other. • Also, once an allele has been lost from a population it is gone forever, so if tastes change, or a new disease arrives the old “best” may not be good enough anymo ...
... • This can lead to the problems of inbreeding as all the animals or plants that are left are genetically closely related to each other. • Also, once an allele has been lost from a population it is gone forever, so if tastes change, or a new disease arrives the old “best” may not be good enough anymo ...
Study guide for Chapter3: Cell division and Chapter 4
... Please use the following resources as you complete this study guide: Ttextbook pages C 73-92, C117-119 and C 135-136 1. Define the following terms: Chromosomes, Chromatids, DNA, Cell cycle, Haploid, Diploid Cell Division, Unicellular, Multicellular, Prokaryotic, Eukaryotic, Nucleus, Fertilization, A ...
... Please use the following resources as you complete this study guide: Ttextbook pages C 73-92, C117-119 and C 135-136 1. Define the following terms: Chromosomes, Chromatids, DNA, Cell cycle, Haploid, Diploid Cell Division, Unicellular, Multicellular, Prokaryotic, Eukaryotic, Nucleus, Fertilization, A ...
Chapter 08 Lecture Outline 8.1 Microscopic Examination of
... or too few chromosomes – If such a gamete participates in fertilization, the zygote will have an abnormal number of chromosomes – Nondisjunction can occur in meiosis I – Nonduisjunction can occur in meiosis II ...
... or too few chromosomes – If such a gamete participates in fertilization, the zygote will have an abnormal number of chromosomes – Nondisjunction can occur in meiosis I – Nonduisjunction can occur in meiosis II ...
Congenital & Genetic Disorders
... – Diploid = when one’s chromosomes are in matched pairs – One chromosome in the matched pair ---- from the father – One chromosome in the matched pair from the mother – These sister chromosomes called homologs – Alleles = genes that have the same locus (location) on sister chromosomes – Allele = eac ...
... – Diploid = when one’s chromosomes are in matched pairs – One chromosome in the matched pair ---- from the father – One chromosome in the matched pair from the mother – These sister chromosomes called homologs – Alleles = genes that have the same locus (location) on sister chromosomes – Allele = eac ...
B3_Revision_Posters
... If genes produce incorrect proteins, cells may not function properly. This is the cause of many inherited diseases. ...
... If genes produce incorrect proteins, cells may not function properly. This is the cause of many inherited diseases. ...
Polyploid
Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes. Most species whose cells have nuclei (Eukaryotes) are diploid, meaning they have two sets of chromosomes—one set inherited from each parent. However, polyploidy is found in some organisms and is especially common in plants. In addition, polyploidy occurs in some tissues of animals that are otherwise diploid, such as human muscle tissues. This is known as endopolyploidy. Species whose cells do not have nuclei, that is, Prokaryotes, may be polyploid organisms, as seen in the large bacterium Epulopicium fishelsoni [1]. Hence ploidy is defined with respect to a cell. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Male bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meiosis.Polyploidy refers to a numerical change in a whole set of chromosomes. Organisms in which a particular chromosome, or chromosome segment, is under- or overrepresented are said to be aneuploid (from the Greek words meaning ""not"", ""good"", and ""fold""). Therefore the distinction between aneuploidy and polyploidy is that aneuploidy refers to a numerical change in part of the chromosome set, whereas polyploidy refers to a numerical change in the whole set of chromosomes.Polyploidy may occur due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.Polyploidy occurs in some animals, such as goldfish, salmon, and salamanders, but is especially common among ferns and flowering plants (see Hibiscus rosa-sinensis), including both wild and cultivated species. Wheat, for example, after millennia of hybridization and modification by humans, has strains that are diploid (two sets of chromosomes), tetraploid (four sets of chromosomes) with the common name of durum or macaroni wheat, and hexaploid (six sets of chromosomes) with the common name of bread wheat. Many agriculturally important plants of the genus Brassica are also tetraploids.Polyploidy can be induced in plants and cell cultures by some chemicals: the best known is colchicine, which can result in chromosome doubling, though its use may have other less obvious consequences as well. Oryzalin will also double the existing chromosome content.