--%>
Assignment Help - homework help

Gametes and sexual spores

What is the basic difference between gametes and sexual spores? Do humans exist sexual spores or gametes?

E

Expert

Verified

Sexual spores are structures produced from meiosis with ploidy (that is, number of chromosomes) decrease to a half compared to the spore mother cell.

Spores germinate and provide existence to gametophytes, individuals that by mitosis make gametes. The meiosis which produces sexual spores is termed as sporic meiosis; it is, for instance, the kind of meiosis which takes place in plants.

Gametes are as well cells with half the number of chromosomes of the normal cell of the species, however they are specialized in fecundation, the fusion with other gamete which produces the zygote, a cell with double number of chromosomes than gametic cells.

Gametes can emerge from gametic meiosis or by mitosis in the gametophytes originated from sexual spores. In humans as well in most of animals the meiosis is gametic. There are neither spores nor modification of generations. The male gamete is the sperm cell, and the female gamete is an egg cell.

   Related Questions in Biology

  • Q : What is Vendor Management Vendor

    Vendor Management: Vendors are businesses or individuals which supply services or goods to other businesses or individuals. It is a term used to illustrate the process of finding, doing and qualifying business with vendors. Common activities comprise

    		•
  • Q : Differentiation between endocrine gland

    Write down the differentiation between endocrine gland and exocrine gland?

    		•
  • Q : Freudian Theory of Personality -

    Freud, the father of psychoanalytic theory, proposed that every individual's personality is the product of a struggle among three interacting forces- the id, the ego, and the superego. Freud theorized that there are four universal stages of psycho-sexual development which are decisive in

    		•
  • Q : Substance transport from mother to fetus

    Explain the chief substances which are transferred from mother to fetus through the placenta and from fetus to mother?

    		•
  • Q : Formal Leaders Formal Leaders When a

    Formal Leaders When a person, is appointed in a superior capacity, the natural leadership relation changers in two respects. 1)

    		•
  • Q : Is cell division taking place during

    Is cell division taking place during the whole cell cycle? And also write down a brief explanation of interphase?

    		•
  • Q : Intensity - Perception Factor

    High intensity increases the chances of selection. If the message is bright, if sentences are underlined, it gets more attention than in normal case the greater the intensity of stimulus, the more likely it will be noticed.  

    		•
  • Q : How is the sound vibration captured by

    How is the sound vibration captured by tympanum transmitted through ossicular chain of middle ear?

    		•
  • Q : Significance/ Importance of Management

    Significance/ Importance of Management     are very essential for successful running of an enterprise. It ensures proper use of physical and human resources by deriving the best resu

    		•
  • Q : Trait Studies-Theories of Leadership

    Trait Studies-Theories of Leadership: A) The "great man" approach B) Traits are distinguishing personal characteristics of a leader such as intelligence, values, appearance, etc

    		•