zuknow learn together

新しい教材を作成

Forest ecology forest tree variation

カード 23枚 作成者: Brock (作成日: 2013/12/03)

  • geneotype

解説面  クリックしてカードを裏返す

アプリをダウンロードして、このコンテンツを学習しよう! AppStore / Google Play

教材の説明:

詳細はありません

公開範囲:

公開

言語:

  • カード表 : 英語
  • カード裏 : 英語
  • このエントリーをはてなブックマークに追加
  • 1

    geneotype

    補足(例文と訳など)

    答え

    • genetic constitution

    解説

  • 2

    phenotype

    補足(例文と訳など)

    答え

    • the observable properties of an organism produced by the genotype together with its environment

    解説

  • 3

    Plasticity of phenotype

    補足(例文と訳など)

    答え

    • -the degree to which a character of a given genotype can be modified (nongenetic) by environmental conditions

    解説

  • 4

    major sources of genetic variation

    補足(例文と訳など)

    答え

    • mutation and recombination of genes

    解説

  • 5

    gene mutation

    補足(例文と訳など)

    答え

    • gene mutations add genetic variablity by increasing the number of alleles ( the different forms of a gene) available for recombination at each locus

    解説

  • 6

    gene flow

    補足(例文と訳など)

    答え

    • =-exchange of genes between different populations =- ex. migrants, in the form of pollen and seed, bring to a population new genetic material form other populations

    解説

  • 7

    Hybridization

    補足(例文と訳など)

    答え

    • when populations involved in gene flow are substantially different (such as species)

    解説

  • 8

    major sources of nongenetic variation

    補足(例文と訳など)

    答え

    • external or physical environment (climatic, landform, soil, biotic factors) and the internal environment of the plant

    解説

  • 9

    Although all cells of a tree have same geneotype

    補足(例文と訳など)

    答え

    • the internal environment of the organism may affect the expression of genes and hence the traits we observe and measure

    解説

  • 10

    the sexula breeding system, dominated by

    補足(例文と訳など)

    答え

    • cross-pollination, characterizes most woody species

    解説

  • 11

    Apomixis

    補足(例文と訳など)

    答え

    • =-any means of reproduction, including vegetative propagation, which does not involve fertilization -most woody species have some form of asexual reproduction or apomixis

    解説

  • 12

    apomixis in angiosperms

    補足(例文と訳など)

    答え

    • -sprouting from basal part of stem (oaks, hickories) and roots (aspens, sweetgum) following fire or cutting

    解説

  • 13

    Gene expression

    補足(例文と訳など)

    答え

    • -environmental factors cause different traits to be expressed '- can allow for rapid 'evolution/changes' in phenotype, -requires genotype to contain the genes necessary for adaptation

    解説

  • 14

    Speciation

    補足(例文と訳など)

    答え

    • -the emergence of a new species, '-long term consequence of variation and reproductive isolation

    解説

  • 15

    Sexual reproduction

    補足(例文と訳など)

    答え

    • always a recombination of genes from both parents

    解説

  • 16

    Asexual reproduction

    補足(例文と訳など)

    答え

    • -how can adaptations occur- mistakes, - benefits- no mate finding, benefit of direct parent energy, '- maintaining genes

    解説

  • 17

    Polyploidy

    補足(例文と訳など)

    答え

    • -Form of hybridization, organisms with 3 or more sets of chromosomes than the lowest # for a genus, '-ex. yellow birch has 84 chromosomes compared to base of 19 for birches, '- individual genes typically not expressed, '- known for ability to colonize harsh conditions (cold/xeric), '- traits from hybridization are kept

    解説

  • 18

    Natural selection

    補足(例文と訳など)

    答え

    • -influences what genes occur most often - based on competition for resources - reproduction

    解説

  • 19

    cline

    補足(例文と訳など)

    答え

    • a gradation in measuable characteristics, continuous or discrete, stepped or smooth, or sloping in various ways

    解説

  • 20

    Clone

    補足(例文と訳など)

    答え

    • the aggregate of stems produced asexually from one sexually produced seedling (aspens

    解説

  • 21

    Photoperiodism

    補足(例文と訳など)

    答え

    • -the response of plants to the timing of light and darkness, biological clock enabling plants to adjust their metabolism to certain seasonal fluctuations

    解説

  • 22

    Bud burst

    補足(例文と訳など)

    答え

    • - flowering and resumption of vegetative growth in spring

    解説

  • 23

    Factors that resist gene flow

    補足(例文と訳など)

    答え

    • -limited disperal of pollen and seeds, '-limited number of breeding trees, '-differences in flowering times of individuals, '-biological and ecological factors that control zygote viability and seedling establishment

    解説

56938

セットの学習コンテンツ

公開初月で
60,000
ダウン
ロード!

無料アプリはこちら!

英単語をウェブサイト
からzuknowに簡単登録

覚えたい単語を選択するだけ!
簡単にzuknowに登録することが
できます

Get the free Chrome Extension

トップ