Explain the process by which an attack of hayfever follows exposure to pollen.

Q: Explain the stages involved in the maturation of a microspore into a pollen grain.

A: Pollination is defined as the process of transferring pollen grains (male gamete) from the anther…

Q: Which type of association is found in between entomophilous flower and pollinating agent?

A: Pollination is the process of transferring pollen grains from the male anther of a flower to the…

Q: If there are 4 cells in anthers, what will be the number of pollen grains? A. 4 B. 8 C. 16 D. 32

A: Anther  It is the pollen-producing reproductive organ of a flower. Pollen Grain  These are the male…

Q: _______of the pollen grain divides to form two male gametes. (a) Vegetative cell (b) Generative cell…

A: Plants are organisms with eukaryotic cells having cell walls and are capable of synthesizing their…

Q: The arrival of pollen grains on a receptive stigma is called_____ . a. germination c. pollination b.…

A: Step 1 Pollen grains represent the male reproductive propagule or young male gametophyte which is…

Q: a. What is the difficulty in ridding the epidermal tissues of certaindermatophytes?b. What is…

A: Dermatophyte word is made up of two words - derma, meaning skin and phyton meaning plants. They…

Q: Give description about agents of pollination.

A: The transfer of pollen grains from the anther (male flower) to the stigma of a female flower is…

Q: Label the Cycas Leaf CS

A: Cycas can be outlined as a genus of the plants that belong to the Cycadophyta lineage, which is not…

Q: Label the following: calyx, petals, stamens, and pistil

A:

Q: Explain the germination process of a typical seed (monocot or eudicot) by addressing hormonal…

A: Germination is the process of seeds developing into new plants. All seeds need water, oxygen and the…

Q: What are the categories for dry dehiscent fruit?

A: After the process of fertilization, the ovary develops into a fruit. The wall of the ovary develops…

Q: Arrange the following in correct developmental sequence : Male gamete, Potential pollen mother cell,…

A: Sexual reproduction in flower includes the formation of zygote through the fusion of egg cell and…

Q: The Stoma can be described as areas to make sugars small openings in the leaf light capturing…

A: Answer: Introduction: The outermost layer of the leaf is called the epidermis. It contains of the…

Q: Growth of pollen tube towards embryo sac is (a) chemotropic (b) thigmotaxis (c) geotropic (d) none…

A: Answer is a.) chemotropic.

Q: Explain the changes that occur when a seed germinates, and state the environmental conditions…

A: Seed germination is the process of development of whole plant through the seed, during this process…

Q: What are the three major factors involved in the development of plant diseases?

A: There are 3 major factors involved in the development of plant diseases. Each of them is described…

Q: Describe the alternation-of-generations life cycle,including the role of the sporophyte and…

A: As reproductive life cycles of organisms include an alternation between meiosis and fertilization,…

Q: Photoperiodism is effected by which color of light?

A: Photoperiodism is the duration of light required by plants for photosynthesis.

Q: Explain the role of tapetum in the formation of pollen-grain wall

A: Megasporangium and microsporangium are reproductive structures in higher plants that take part in…

Q: escribe the production of fairy ring of mushrooms and also explains why its diameter is related to…

A: A structure known as mycelium makes up the fungus body in mushrooms. Mycelium is a collection of…

Q: Discuss briefly the following types of aestivation in flowers i) Valvate ii) Twisted iii)…

A: Aestivation refers to arrangement of different parts of flower such as sepals or petals within the…

Q: Identify whether the type of flowers in: -Pistia stratiotes -Calotropis gigantea -Gloriosa superba…

A: Pistia Stratiotes is a a dioecious plant and hence is unisexual. It has spadix type of florescence.…

Q: Does pollen that adheres to the hummingbird rub off when the bird visits a second flower of the same…

A: The hummingbirds are among the smallest groups of birds from the Class Aves belonging to the family…

Q: Explain TWO factors that will influence the germination of seed.

A: Germination is considered a process that marks the growth of a plant from the seed. It is commonly…

Q: Explain the characteristic fragrance of lilac flowers ?

A: Lilacs are easily recognized by their long, often cone-shaped panicles covered in tiny, tubular…

Q: . .is the arrival of pollen on a receptive stigma. ... .

A: A flower is the reproductive part of an angiosperm plant's modified thick shoot. The transfer of…

Q: Define Pollen grain.

A: Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. The…

Q: Name the type of cell division that occurs formation of pollen grains.

A: Cell division (CD), also called cell duplication. It is the mechanism of synthesis of daughter cells…

Q: Drying and aging seeds is a way to enhance seed viability and germination and at the same time to…

A: Introduction  The viability of a seed accession is a measure of how many seeds are alive and capable…

Q: Draw DENDROBIUM FLOWER according to its sexuality

A: Dendrobium genus is the kind of orchids. It is an epiphyte. It is able to absorb the nutrients with…

Q: Identify the response of pollen tube movement towards ovule. A. autotropism B. phototropism C.…

A: As per our guidelines we are supposed to answer only ? One question ( if there are multiple…

Q: Explain the structure of the pollen.

A: Pollen grains are microscopic structures that are responsible for transporting the male reproductive…

Q: Which of the following statement is correct for the pollen tube? (a) It shows chemotactic movement.…

A: Answer: POLLEN TUBE = It is the tube which is produced by male gametophyte of seed plants, they…

Q: ifferentiate signs vs. symptoms of plant

A: A sign of plant disease is physical evidence of the pathogen. For example, fungal fruiting bodies…

Q: Describe the way gibberellin causes plant growth

A: Gibberellin or Gibberellic acid are the groups of hormones present in plants. In-plant it is…

Q: Meiosis of cells in pollen sacs forms haploid______ . a. megaspores c. stamens b. microspores d.…

A: Meiosis is a cell division process that produces four gamete cells while halving the number of…

Q: what are the Hoya wax flower production techniques

A: Hoya wax plant is a flowering plant belongs to a family known as Apocynaceae. The scientific name of…

Q: Enlist the requirements for the sexual propagation by seed.

A: Sexual propagation involves the union of the pollen (male) with the egg (female) to produce a seed.…

Q: It refer to the structures of the pathogen that are found associated with the infected plant (i,e.,…

A: The visible effects of diseases on plants are called symptoms and any detectable changes in color,…

Q: A. Draw MAYANA FLOWER according to its sexuality B. Identify whether it is pistillate, staminate,…

A: Few points to know about Flower . Which are as follows. We know that flowering plant will show…

Q: II. Altemate response C. If statement A is correct and B is wrong. D. If statement A is wrong and B…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: What is the effect of the plant pathogen to the infected or diseased plant?

A: The plants are formed of roots, stem, leaves, fruits and flowers. The conduction system in plants is…

Q: What is the cause of the bleeding in the plants?

A: Bleeding in animals means the haemorrhage or uncontrolled outflow of blood. In plants, this term…

Plant sensory system

The plant sensory system is a sophisticated system that responds to environmental stimuli such as light,temperature, gravity, and touch. Research predicts that plant hormones and signaling mechanisms areresponsible for this regulation system in plants.