BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Question
Chapter 27, Problem 9SA
Summary Introduction
Introduction:
Polyploidy occurs when the cells undergo karyokinesis (a division of nucleus) but fail to undergo cytokinesis (a division of cytoplasm). This results in an increase in the haploid sets of chromosomes in the cells. The polyploidy might give rise to triploid, tetraploid, hexaploid organisms. This is only present in plants.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Domesticated banana plants produce seedless fruit because they are______ . a. triploid d. propagated by grafting b. monocots e. treated with colchicine c. endangered f. infected with Phylloxera
The seed coat forms from the______ . a. integuments c. endosperm b. coleoptile d. sepals
Meiosis of cells in pollen sacs forms haploid______ . a. megaspores c. stamens b. microspores d. sporophytes
Chapter 27 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 27 - An animal pollinator may be rewarded by _______...Ch. 27 - The arrival of pollen grains on a receptive stigma...Ch. 27 - Prob. 3SACh. 27 - In flowers, the structures that produce male...Ch. 27 - Seeds are mature _______ ; fruits are...Ch. 27 - Prob. 6SACh. 27 - The three main parts of a typical mature eudicot...Ch. 27 - Prob. 8SACh. 27 - Prob. 9SACh. 27 - Prob. 10SA
Ch. 27 - Prob. 11SACh. 27 - Prob. 12SACh. 27 - Prob. 13SACh. 27 - Which of the following statements is false? a....Ch. 27 - Match the observation with the main hormones.. ___...Ch. 27 - The oat coleoptiles on the left have been...Ch. 27 - Is the seedling shown on the right a monocot or...Ch. 27 - Prob. 3CTCh. 27 - Prob. 4CT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A new plant forms from a stem that broke off of the parent plant. This is an example of_____ . a. nodal cloning c. asexual reproduction b. exocytosis d. tissue culture propagationarrow_forwardAfter double fertilization, a zygote and ________ form. a. an ovule b. endosperm c. a cotyledon d. a suspensorarrow_forwardExposure to______ can trigger seed germination. a. light c. smoke b. cold d. all can be triggersarrow_forward
- The fertilized ovule gives rise to the ________. a. fruit b. seed c. endosperm d. embryoarrow_forwardIt is the hormone which is responsible for stem elongation. * a. Gibberellins b. Ethylene c. Cytokinin d. Abscisic acidarrow_forwardIn the alternation of generations in plants, the gametophyte is _______ and produces gametes by _______. a. haploid; mitosis c. haploid; meiosis b. diploid; mitosis d. diploid; meiosisarrow_forward
- The dominant organism in fern is the ________. a. sperm b. spore c. gamete d. sporophytearrow_forwardIn a plant’s male reproductive organs, development of pollen takes place in a structure known as the ________. a. stamen b. microsporangium c. anther d. tapetumarrow_forwardMost gymnosperm seeds _______________. Select one: a. have attached wings to aid in dispersal b. grow as groups in thick pouches inside of woody cones c. have very little viability d. possess no seed coat e. none of the above answers f. have triploid endosperm, the product of double fertilizationarrow_forward
- Double fertilization results in __________________________. a. a diploid zygote and triploid endosperm in each seed b. a spare sperm nucleus c. two diploid zygotes in every seed d. none of these answers is correct e. three diploid zygotes; one of the three will form will develop into a sporophyte embryo in a seed, one will die and the third will migrate out of the megasporangium and form a separate male plantarrow_forward1. Ovary will become the _____. A.seed coat B.fleshy fruit that can be eaten C.whole seed D.endosperm of the seed E.plant embryo 2. If the testes fail to descend, a male is infertile because sperm cell formation is prevented by _____. A.excessive production of estrogen B.none of the choices C.all of the choices D.lack of testosterone E.relatively high internal body temperature 3. An egg develops to an amphibian without being fertilized by an egg. A.Isogamy B.Sporulation C.Parthenogenesis D.Asexual Reproduction E.Sexual Reproductionarrow_forward18.It stimulates biochemical activities that cause observable physiological responses by organisms. a.Auxin b.Hormone c.Insulin d.Gibberelin 19.Which natural methods of asexual reproduction is exhibited by ginger, fern, iris and sugarcane? a.Bulb b.Runner c.Corm d.Rhizome 24.Unlike animal hormones, plant hormones do NOT have definite target areas. a.True b.False Plant senescence is the process of aging in plants. Which plant hormone delays senescence? a. Cytokinin b. Gibberelin c. Jasmonic acid d. Brassinosteroid The following are functions of the stomata except ____________. a. close or open pores to keep the moisture content developed b. open and close the pores in the leaves for an exchange of gases c. allow the plant to take in carbon dioxide and give out oxygen for photosynthesis d. convey water and dissolved minerals from the roots to the rest of the plantarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
The Plant Kingdom: Characteristics and Classification | Educational Videos for Kids; Author: Happy Learning English;https://www.youtube.com/watch?v=IYxfz1PSfZ0;License: Standard Youtube License