Gametes and sexual spores
What is the basic difference between gametes and sexual spores? Do humans exist sexual spores or gametes?
Expert
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.
How does photosensitivity in the cnidarians, annelids and worms differ from cephalopods, insects, and the vertebrates?
Does DNA duplication take place in the cell division?
Describe the function of the iris and pupil?
Write down the diseases of connective tissue?
Write down the three main parts of the eukaryotic cell?
Define the term zymogens?
When can I walk my puppy in the garden?
a) Browsers, which search through corporate intranets. b) Agents, software that seeks out information. c) "Knowledge maps," indices that classify information and help users determine the location of the information. d) Metadata or electronic card catalogues, which summariz
What do you mean by auto immunity?
1. Why do we have a diverse set of government agencies? That is, why cannot Congress do all the necessary lawmaking that the federal government needs? 2. Why do we have a diverse set of government agencies? That is, why cannot Congress do all the nece
18,76,764
1937635 Asked
3,689
Active Tutors
1419389
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!