Question | Answer |
The products of meiosis in plants are always which of the following? | spores |
Which of the following is the correct sequence during alternation of generations in a flowering plant? | sporophyte-meiosis-gametophyte-gametes-fertilization-diploid zygote |
Which of the following is true in plants? | Meiosis occurs in sporophytes to produce spore |
All of the following are features of angiosperms except: | a small (reduced) sporophyte |
Based on studies of plant evolution, which flower is not a modified leaf? | receptacle |
All of the following floral parts are directly involved in pollination except the: | sepal |
Floral parts would have the greatest impact on pollination? | Sepal or Petal |
A mutation in which of the following floral parts would have the greatest potential impact on fertilization? | Stamen or carpel |
Which of the following is the correct order of floral organs from the outside to the inside of a complete flower? | sepals, petals, stamens, carpels. |
All of the following are primary functions of flowers except: | photosynthesis |
Meiosis occurs within all of the following flower parts except the... | style |
A perfect flower is fertile but may be either complete or incomplete. Which of the following correctly describes a perfect flower? | It has both stamen and carpels. |
Carpellate flowers.. | develop into fruits |
which of the following types of plants is not able to self-pollinate? | dioecious. |
In flowering plants, pollen is released from the ... | anther |
In the life cycle of an agiosperm, which of the following stages is diploid.. | microsporocyte |
Where does meiosis occur in flowering plants? | megasporocyte and microsporocyte |
Which of the following is a correct sequence of processes that takes place when a flowering plant reproduces? | meiosis, pollination, nuclear fusion, formation of embryo and endosperm |
Which of these is incorrectly paired with its life-cycle generation? | anther- gametophyte |
Which of the following is the correct sequence of events in a pollen sac? | microsporocyte-meiosis-microspores-mitosis-two haploid cells per pollen grain |
Which of the following occurs in an angiosperm ovule? | A megaspore mother cell undergoes meiosis. |
Where and by which process are sperm produced in plants? | Mitosis in male gametophytes |
In which of the following pairs are the two terms equivalent? | embryo sac -- female gametophyte |
Which of the following is the male gametophyte of a flowering plant? | pollen grain |
In flowering plants, a mature male gametophyte contains... | two sperm nuclei and one tube cell nucleus. |
Within the female gametophyte, three mitotic divisions of the megaspore produce.. | three antipodal cells, two polar nuclei, one egg, and two synergids |
The largest cell(s) of the typical angiosperm embryo sac is (are) the.. | central cell |
Which cells, after fertilization, give rise to the embryo plant? | egg cell |
Which cells becomes the triploid endosperm? | polar nuclei |
Which cells guide the pollen tube to the egg cell | tube cell |
What is the relationship between pollination and fertilization in plants? | Pollination brings gametophytes together so that fertilization can occur |
Recent research has shown that pollination requires that carpels recognize pollen gains as "self or non self". For self-incompatibility, the system requires | the rejection of self cells |
As flowers develop, which transition does not occur? | The tube nucleus becomes a sperm nucleus. |
The integuments of an ovule function to do what? | form a seed coat |
A fruit includes | one or more seeds and has fleshy cells rich in sugars. |
What is typically the result of double fertilization in angiosperms? | Both a diploid embryo and a triploid endosperm are formed. |
Which of the following statements regarding the endosperm is false? | It develops from the fertilized egg. |
In angiosperms, products of the terminal cell become the: | proembryo and the coteyledons |
Which of the following statements is correct about the basal cell in a zygote? | It forms the suspensor that anchors the embryo. |
What is the embryonic root called? | radicle |
Which of the following "vegetables" is botanically a fruit? | green beans |
Which of these structures is unique to the seed of a monocot? | coleoptile |
Which of the following statements about fruits is false? | Fruits form from microsporangia and integuments |
Fruits develop from | ovaries |
The first step in germination of a seed is usually | imbibition of water |
When seeds germinate the radicle emerges before the shoot. This allows the seedling to quickly... | obtain a dependable water supply |
Which of the following is not true of the hypocotyl hook? | It is the first structure to emerge from a eudicot seed. |
In plants, which of the following could be an advantage of sexual reproduction as opposed to asexual reproduction? | genetic variation |
Which of the following is true about vegetative reproduction? | It produces clones. |
Which of the following is a true statement about clonal reproduction in plants? | Making cuttings of ornamental plans is a form of fragmentation. |
All of the following could be considered advantages of asexual reproduction in plants except.. | adaptation of change. |
Which of the following statements is true of protoplast fusion? | It can be used to form new plant varieties by combining genomes from two plants. |
Which of the following statements is correct about protoplast fusion? | It can be used to form new plant species. |
The most immediate potential benefits of introducing genetically modified crops include.. | increasing crop yield. |
Which of the following is not a scientific concern relating to creating genetically modified crops? | The monetary costs of growing genetically modified plants are significantly greater than traditional breeding techniques. |
Currently available transgenic plants have been modified for all of the following traits except.. | nitrogen fixation. |
Flowers are made of modified.. | leaves |
Which of these is unique to the flowering plants? | double fertilization. |
What is endosperm? | a food-storing tissue of the seed |
________ is the first event in seed formation | pollination. |
Which of the following statements is true about transgenic plants? | They contain genes from more than one species. |