Formation of male gametes of gymnosperms
Explain the formation of the male gametes of gymnosperms? Explain the relationship between pollen grains and concept of the alternation of generations?
Expert
In the male strobiles (cones) there exist microsporophylls or fertile leaves of strobile which consists of the microsporangia. Inside the microsporagium spore mother cells go through the meiosis and produce the haploid microspores. The microspore wall grows into the winglike projections (in order to facilitate its aerial propagation) and mitosis takes place generating the two cells, the generative cell and the tube cell. The final structure having these elements is the pollen grain. The pollen grain relates to the alternation of the generations as it is the male gametophyte (haploid stage of the life cycle).
Criticisms of Hawthorne Experiments Through the Hawthorne Experiments have opened a new chapter in management by emphasizing the importance of social factors in the
What do you meant by the term gene therapy? Briefly define it.
What are the National and cultural characteristics of Decision making or explain Four dimensions of our mental programming ?
Define the term DNA library and protein sequence database. Briefly define the terms.
what is the historical nature of the glands
Commercial law coursework assignment help Answer each question separately (i.e. not as one continuous essay) You are reminded that you will be assessed on your ability to organize and present information and arguments lo
How different are the concepts of the resting potential, action potential and excitation threshold concerning neurons?
Elucidate the word polyembryony?
How can the blood coagulation (clotting) process be explained?
Define the term protein denaturizing? Is there any modification in the primary structure if a protein is denaturized?
18,76,764
1951420 Asked
3,689
Active Tutors
1434394
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!