Reproduction and Evolution Exam
... b. have corresponding alleles on homologous chromosomes. c. have two sets of chromosomes. d. have pairs of homologous chromosomes. e. all of these 4. Cells with two of each kind of chromosome are described by the term a. haploid. b. triploid. c. polyploid. d. diploid. e. tetraploid. 5. Which of the ...
... b. have corresponding alleles on homologous chromosomes. c. have two sets of chromosomes. d. have pairs of homologous chromosomes. e. all of these 4. Cells with two of each kind of chromosome are described by the term a. haploid. b. triploid. c. polyploid. d. diploid. e. tetraploid. 5. Which of the ...
Steps of Meiosis - Sonoma Valley High School
... align with each other. • Synapsis occurs: pairing of homologues. • Each pair of homologues chromosomes is called a tetrad. – Crossing over occurs. ...
... align with each other. • Synapsis occurs: pairing of homologues. • Each pair of homologues chromosomes is called a tetrad. – Crossing over occurs. ...
CH 14 notes - Lincoln Park High School
... o Homologous chromosomes: pair of chromosomes that have genes for the same traits 1 of each pair comes from each parent Gene: a section of DNA that codes for a specific trait o Somatic cells are diploid (2N): they contain 2 sets of chromosomes in homologous pairs Diploid number for humans is 4 ...
... o Homologous chromosomes: pair of chromosomes that have genes for the same traits 1 of each pair comes from each parent Gene: a section of DNA that codes for a specific trait o Somatic cells are diploid (2N): they contain 2 sets of chromosomes in homologous pairs Diploid number for humans is 4 ...
SBI 3U Genetics Test Review Sheet
... DNA so that they are no longer genetically identical. Random assortment also increases genetic diversity, because it results the set of homologous chromosomes in daughter cells being different than the set ...
... DNA so that they are no longer genetically identical. Random assortment also increases genetic diversity, because it results the set of homologous chromosomes in daughter cells being different than the set ...
Test 5 Notecards
... codominance: both alleles contribute to the offspring’s genotype; ex. Chickens black (BB) + white (WW) produces speckled black and white (BW) multiple alleles: have more than two alleles; ex. Rabbit fur polygenic traits: controlled by two or more genes; ex. Skin color karyotype: picture of human c ...
... codominance: both alleles contribute to the offspring’s genotype; ex. Chickens black (BB) + white (WW) produces speckled black and white (BW) multiple alleles: have more than two alleles; ex. Rabbit fur polygenic traits: controlled by two or more genes; ex. Skin color karyotype: picture of human c ...
Genetics Unit Review Any question that is not “fill in the bl
... answer on another sheet of paper (on the back of the packet is fine). 1. What is your plan for studying? Which nights, what times, for how long, which lesson, how will you study? 2. What is heredity? 3. What scientist made important discoveries that allow us to study genetics?_____________ 4. What o ...
... answer on another sheet of paper (on the back of the packet is fine). 1. What is your plan for studying? Which nights, what times, for how long, which lesson, how will you study? 2. What is heredity? 3. What scientist made important discoveries that allow us to study genetics?_____________ 4. What o ...
File
... Continuous variation is controlled by many genes (Polygenic inheritance) Discrete variation is controlled by a single gene During sexual reproduction, the new member of the species receives 50% genetic information from its mother and 50% genetic information from its father The combining of differe ...
... Continuous variation is controlled by many genes (Polygenic inheritance) Discrete variation is controlled by a single gene During sexual reproduction, the new member of the species receives 50% genetic information from its mother and 50% genetic information from its father The combining of differe ...
10 Biology Exam Review 2015
... 20. Create examples or stories for the terms below: a. artificial Selection Plant and animal breeders can create new strains or breeds of plants and animals by breeding together, generation after generation, individuals having the phenotype desired. For example, to get larger ears of corn, farmers k ...
... 20. Create examples or stories for the terms below: a. artificial Selection Plant and animal breeders can create new strains or breeds of plants and animals by breeding together, generation after generation, individuals having the phenotype desired. For example, to get larger ears of corn, farmers k ...
Mendelian Genetics - FSCJ - Library Learning Commons
... chromosomes. Ex: The different alleles for plant height can be represented by “T” for tall and “t” for short. Sexual reproduction – Entails the union of two gametes to form a single celled zygote. Introduces genetic variation in offspring that allows adaptation to environmental changes. Haploid (n) ...
... chromosomes. Ex: The different alleles for plant height can be represented by “T” for tall and “t” for short. Sexual reproduction – Entails the union of two gametes to form a single celled zygote. Introduces genetic variation in offspring that allows adaptation to environmental changes. Haploid (n) ...
Evolution: Fact and Theory
... Fact: Species change over time. Theory: Species arise from common descent through natural selection Random mutations lead to changes in genes. Changes in genes lead to changes in physical form (phenotype) Physical form best adapted to the environment at the time produce more offspring and ...
... Fact: Species change over time. Theory: Species arise from common descent through natural selection Random mutations lead to changes in genes. Changes in genes lead to changes in physical form (phenotype) Physical form best adapted to the environment at the time produce more offspring and ...
Week 10 - Crossroads Academy
... • Parents – the first lab practical was fully embraced by the students and overall went well – I dare say many students found it fun! (Yay!) I have asked them to correct any tests that were lower than an ‘A’ for 50% credit back. They are welcome to use their notes or any instructional lessons they w ...
... • Parents – the first lab practical was fully embraced by the students and overall went well – I dare say many students found it fun! (Yay!) I have asked them to correct any tests that were lower than an ‘A’ for 50% credit back. They are welcome to use their notes or any instructional lessons they w ...
Heredity Passing It On pp1 and 2
... to replace old or dying cells throughout our bodies. These cells need to be exactly like their parent cells so they are able to continue doing their jobs. If offspring were produced through mitosis, as they often are in single-celled organisms, each offspring would be identical to its parent. In sex ...
... to replace old or dying cells throughout our bodies. These cells need to be exactly like their parent cells so they are able to continue doing their jobs. If offspring were produced through mitosis, as they often are in single-celled organisms, each offspring would be identical to its parent. In sex ...
Biology 3 Study Guide – Exam #3
... This is a list of the general types of things you should be prepared to answer questions on for each chapter. You are still responsible for all material covered in class and should know all of the key terms at the end of the notes for each chapter. Chapter 8 (Cell Division) ...
... This is a list of the general types of things you should be prepared to answer questions on for each chapter. You are still responsible for all material covered in class and should know all of the key terms at the end of the notes for each chapter. Chapter 8 (Cell Division) ...
Remember those chromosomes?
... All those poor Queens were executed for nothing! The King should have been blamed for not producing a male heir. Shame on them! ...
... All those poor Queens were executed for nothing! The King should have been blamed for not producing a male heir. Shame on them! ...
HSLS4-1
... Desired Results Students will be able to… 1. Compare and contrast asexual and sexual types of reproduction that occur on the cellular and multicellular organism levels. Understand how asexual reproduction differs from sexual reproduction. Know the advantages and disadvantages of each. 2. Explain thr ...
... Desired Results Students will be able to… 1. Compare and contrast asexual and sexual types of reproduction that occur on the cellular and multicellular organism levels. Understand how asexual reproduction differs from sexual reproduction. Know the advantages and disadvantages of each. 2. Explain thr ...
genetics Study Guide(fall 2014 for old book)
... What are the 2 key processes involved in sexual reproduction? The names of the stages of meiosis and describe what is happening at each stage Why is it important that the daughter cells resulting in meiosis are haploid? What are homologous chromosomes? Describe the difference between homologous chro ...
... What are the 2 key processes involved in sexual reproduction? The names of the stages of meiosis and describe what is happening at each stage Why is it important that the daughter cells resulting in meiosis are haploid? What are homologous chromosomes? Describe the difference between homologous chro ...
Chapter 10b 2012 File
... • There is no DNA replication beforehand • Starts with 2 - 2n cells; after separating centromes (chromatids) results in 4 – 1n cells ...
... • There is no DNA replication beforehand • Starts with 2 - 2n cells; after separating centromes (chromatids) results in 4 – 1n cells ...
Crossingover and Gene Mapping
... rate. The further apart genes are from each other increases their chance of cross over. The closer genes are, the less likely they are to cross over so they remain on the same chromosome. The genes and the physical characteristics are now different than before crossing-over. This process is another ...
... rate. The further apart genes are from each other increases their chance of cross over. The closer genes are, the less likely they are to cross over so they remain on the same chromosome. The genes and the physical characteristics are now different than before crossing-over. This process is another ...
Mitosis and Meiosis
... generation to generation (inherited or hereditary characteristics) • We have homologous pairs of chromosomes (one from our mother and one from our father) • For every gene on one chromosome there is a corresponding gene on the other.ie. For hair colour or eye ...
... generation to generation (inherited or hereditary characteristics) • We have homologous pairs of chromosomes (one from our mother and one from our father) • For every gene on one chromosome there is a corresponding gene on the other.ie. For hair colour or eye ...
Genetic Engineering - Deans Community High School
... unusual. Instead of matching one another band for band, one x chromosome is found to have a band missing. It is therefore concluded that this is the location of the gene for red/white eye colour. ...
... unusual. Instead of matching one another band for band, one x chromosome is found to have a band missing. It is therefore concluded that this is the location of the gene for red/white eye colour. ...
Exam 4 Review - Iowa State University
... 6.) Looking through a microscope at some dividing cells, you note that the chromosomes are visible and the stage most closely resemble that of the one labeled “A” in figure 1. What stage is it? A) metaphase B) prophase C) anaphase D) G1 E) interphase 7.) Asexual reproduction results in the productio ...
... 6.) Looking through a microscope at some dividing cells, you note that the chromosomes are visible and the stage most closely resemble that of the one labeled “A” in figure 1. What stage is it? A) metaphase B) prophase C) anaphase D) G1 E) interphase 7.) Asexual reproduction results in the productio ...
Ingenious Genes Curriculum Links for AQA GCSE Combined
... cell divides twice to form four gametes, each with a single set of chromosomes • all gametes are genetically different from each other. Gametes join at fertilisation to make a new cell with the normal number of chromosomes. 4.4.3.1 Chromosomes and genes Explain the following terms: gamete, chromosom ...
... cell divides twice to form four gametes, each with a single set of chromosomes • all gametes are genetically different from each other. Gametes join at fertilisation to make a new cell with the normal number of chromosomes. 4.4.3.1 Chromosomes and genes Explain the following terms: gamete, chromosom ...
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.