Formation of male gametophytes
Explain the formation of the male gametophytes and the male gametes inside the angiosperms?
Expert
In anthers of each of the stamen there exist the pollen sacs. Inside these pollen sacs there exist the microspore mother cells, or the microsporocytes. These cells go through the meiosis forming the microspores. Each microspore through the mitosis makes pollen grain consisting of one generative cell and one tube cell. The pollen grain is known as the male gametophyte. Whenever the pollination takes place and the pollen grain forms the contact with the stigma (the apex of pistil) the tube cell extends its cytoplasm making the pollen tube which grows to the ovary. The generative cell splits making two sperm nuclei (male gametes) which migrate through the pollen tube.
How are ecological interactions categorized?
How the excretory system of annelids is be explained?
Describe the typical characteristic of the epithelia? How dissimilar is it from the connective tissue?
Explain the inflammation?
Give a brief explanation of typical vegetation and typical fauna of temperate forests?
Does glycolysis take place in mitochondria?
Describe the process of Readying the Egg in short?
what are the characteristic of the perceiver
I. Creating and populating a repository of in-house knowledge II. Measuring the dollar-value of chunks of knowledge III. Facilitating the transfer of knowledge Q : Generation X Define the term Generation Define the term Generation X and what are their characteristics in Generation groups of Employees ?
Define the term Generation X and what are their characteristics in Generation groups of Employees ?
18,76,764
1934260 Asked
3,689
Active Tutors
1420342
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!