Introduction:
Flowering plants are capable of reproducing by both asexual and sexual mode of reproduction. The asexual mode of reproduction constitutes only mitotic divisions, and in a sexual reproduction, mitosis is followed by meiosis.
Answer to Problem 1MCQ
Correct answer:
Although gametes are produced via mitosis in plants,
Explanation of Solution
Reason for the correct statement:
The diploid cells in plants undergo meiosis in order to produce haploid microspores and megaspores in which, genetic variation takes place as a result of crossing over. These cells then develop into the gametophytes, which produce egg cells and sperm by mitosis.
Option (a) is given as "mitosis; meiosis".
As, “The process of mitosis results in the formation of gametes, sperm and egg cells in the plants, and the process of meiosis leads to genetic variation in the plants”, is the right answer.
Hence, option (a) is correct.
Reasons for the incorrect statements:
Option (b), is given as “meiosis; grafting”.
Grafting is the artificial and asexual method of plant growth in which no gamete formation takes place. Hence, it is a wrong answer.
Option (c), is given as “budding; mitosis”.
Budding is an asexual mode of reproduction in which, no gamete formation takes place, and mitosis does not allow genetic variation. Hence, it is a wrong answer.
Option (d), is given as “binary fission, asexual reproduction”.
Binary fission is an asexual mode of reproduction, and asexual reproduction does not allow gamete formation and genetic variation. Hence, it is a wrong answer.
Hence, the options (b), (c), and (d) are incorrect options.
Gametes are produced via mitosis in plants, and genetic variation is primarily the result of meiosis in plants.
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Chapter 24 Solutions
Biology: Concepts and Investigations
- Genetic variation from meiosis is generated during ________. a. both meiosis I and meiosis II b. meiosis II c. meiosis Iarrow_forwardWhich of the following mechanisms contributes to genetic variation through sexual reproduction via the random orientation of pairs of homologous chromosomes at metaphase of meiosis I? A. crossing over B. random fertilization C. independent assortment of chromosomes D. cytokinesisarrow_forwardMeiosis is a necessary part of sexual reproduction because it_____ . a. divides two nuclei into four new nuclei b. reduces the chromosome number for gametes c. gives rise to new allelesarrow_forward
- Since the seedless bananas are triploid open parentheses 3 n close parentheses, and do not produce viable seeds for reproduction. To grow more seedless banana plants, farmers take a side shoot and replant it. This type of reproduction is asexual because a. mitosis does not occur. b. budding does not occur. c. binary fission does not occur. d. meiosis does not occur.arrow_forwardIn unicellular organisms, mitosis helps in asexual reproduction as it produces an identical copy of the parent cell. Which of the following organisms reproduce through mitosis? A. Bacteria B. Frog C. Hydra D. Sea anemones Which of the following does NOT signifies the application of mitosis? A. Production of sperms and eggs. B. An amoeba reproduces through binary fission while hydra and yeast reproduce through budding. C. You become taller because the bone cells continue to undergo mitosis D. All the daughter cells resulting from the multiple cell divisions will make up the body of the human. Dolly is the first mammal to have been successfully cloned from an adult cell Which of the following statement/s is/are most relevant to the birth of Dolly? I. It suggests that human could be cloned. II. It proves that specialized cells could be used to create an exact copy of the animal they came from. III. It improves the production of milk, meat, and other products from livestock. IV. It…arrow_forwardHomologous chromosomes move toward opposite poles of a dividing cell during a. fertilization b. meiosis II c. meiosis I d. mitosisarrow_forward
- Which type of life cycle has both a haploid and diploid multicellular stage?a. an asexual life cycleb. diploid-dominantc. haploid-dominantd. alternation of generationsarrow_forwardWhich of the following can occur by the process of meiosis but not mitosis? A. Haploid cells fuse to form diploid cells B. Diploid cells form haploid cells C. A diploid cell combines with a haploid cell D. Haploid cells multiply into more haploid cellsarrow_forwardSeedless bananas are triploid , and do not produce viable seeds for reproduction. To grow more seedless banana plants, farmers take a side shoot and replant it. This type of asexual reproduction is called Select one: a. Fragmentation b. Binary fission c. Parthenogenesis d. Buddingarrow_forward
- One unique feature of fertilization in flowering plants compared with animals is: A. the process involves double fertilization B. plant sperm are motile C. nuclear fusion does not take place D. the gametes are diploid, not haploid. E. multiple ovules exist in the ovaryarrow_forwardIn animals, meiosis of germ cells produces gametes. Some plant cells also undergo meiosis, but the resulting cells are not gametes. Explain what the products of plant meiosis are, what they develop into, and how plants produce gametes.arrow_forwardThe law of segregation of chromosomes arises due to events in _________. A. Mitosis and meiosis II B. Mitosis and meiosis I C. Meiosis I only D. Meiosis II onlyarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College