Steph Biology final

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Author:
mmr2742
ID:
17784
Filename:
Steph Biology final
Updated:
2010-05-04 16:25:01
Tags:
plants
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Description:
plants biology
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  1. ___________ is an asexual propagation technique were
    small pieces of tissue are placed in a sterile culture containing all the
    nutrients, carbohydrates and hormones needed for growth.
    tissue culture
  2. ___ is an example of parthenocarpic fruit.
    Washington Navel Orange
  3. _____ is the development of a fruit without seeds.
    parthenocarpy
  4. Plants produce flowers when they are in the _________ phase.
    adult
  5. The top part of a graft is called the ___________.
    scion
  6. ______is NOT a mode of action of pesticides.
    biological
  7. If John Q. Public discovers a very unique looking holly
    shrub and propagates it by cuttings to produce thousands of young plants, then
    that population or group of plants would be a good example of
    _________________.
    a clone
  8. Two disadvantages of sexual propagation are: ___ & ____.
    • seeds are difficult or slow
    • to germinate and the offspring has genetic variability
  9. _________ is NOT an objective or advantage of pruning.
    decrease productivity
  10. _____ is NOT an advantage of grafting.
    hybrid production
  11. When sections of an Irish potato (tuber) as used for vegetative propogation this is a form of _______________.
    stem cutting
  12. _____is a chemical pinching agent that overcomes apical
    dominance.
    atrinal
  13. ____is the part of the flower containing the pollen grains
    anther
  14. __________ is the number of replicate chromosomes present in the nucleus of a cell.
    ploidy
  15. The egg and sperm nuclei are also called _____________.
    gamenuclei
  16. ____ is a pest is controlled by fungicides.
    sooty mold
  17. _______is NOT a mode of action of pesticides
    biological
  18. Two disadvantages of asexual or vegetative propagation are:
    few offspring from each parent and requires a lot of labor
  19. Fertilization is the union of one male gamete and one female gamete to produce a _____________.
    zygote
  20. ______________is the type of dormancy caused by chemical inhibitors in the fruit wall or seed coat.
    correlated inhibition
  21. Sexual reproduction in higher plants involves the union of several nuclei in a process called __________________ fertilization.
    double
  22. The top part of a graft is called the ___________.
    scion
  23. A ________________ is a mollusk.
    slug
  24. Plants that are ________________________ can not be successfully grafted.
    monocots
  25. To make the canopy of a tree more dense, ________________
    should be used.
    heading back

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