Alternation of Generations:
In general with all land plants and certain advanced algae like Laminaria, bryophytes show alternation of generations. Two kinds of organism that is, a haploid gametophyte generation and a diploid sporophyte generation, alternate in the life cycle. The cycle is summed up in the figure shown below:
Figure: Generalized life cycle of a Bryophyte plant exhibiting alteration of generation
The haploid generation is termed as the gametophyte since it undergoes sexual reproduction to generate gametes. The production of gametes includes mitosis; therefore the gametes are too haploid. The gametes fuse to make a diploid zygote that grows into the later generation that is the diploid sporophyte generation. It is termed as sporophyte since it undergoes asexual reproduction to generate spores. The production of spores includes meiosis, and hence there is a return to the haploid situation. The haploid spores give mount to the gametophyte generation.
One of the two generations is always much conspicuous and engages a bigger proportion of the life cycle. This generation is termed as the dominant generation. In each Bryophyte the gametophyte generation is dominant. And in all other land plants the sporophyte generation is dominant. It is habitual to place the dominant generation in the top half of the life cycle figure. The figure given above summed up the life cycle of a usual Bryophyte. The one point that should be remembered here is that gamete production includes mitosis and not meiosis as in animals. Meiosis takes place before the production of spores.
Latest technology based Biology Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Bryophytes homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Bryophytes, project ideas and tutorials. We provide email based Bryophytes homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Bryophytes. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Biology homework help and assignment help services. They use their experience, as they have solved thousands of the Biology assignments, which may help you to solve your complex issues of Bryophytes. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
tutorsglobe.com de-broglie relation assignment help-homework help by online atomic structure tutors
Linear Momentum tutorial all along with the key concepts of Impulse, Newton's Laws of Motion, Conservation of Linear Momentum, Elastic and Inelastic Collision and Applications of Newton's Law
periodic table, tutorial all along with the key concepts of beginning of classification, attempts made by j w dobereiner, attempts made by j w dobereiner, attempts made by john newlands, work of lothar meyer, mendeleev's periodic law
defining national income, www.tutorsglobe.com offers national income accounting assignment help - national income homework help and answering questions to economics by tutor's help.
tutorsglobe.com xerophytes assignment help-homework help by online hydrophytes-mesophytes-xerophytes tutors
tutorsglobe.com short run average cost curves assignment help-homework help by online cost and revenue tutors
tutorsglobe.com rainwater harvest through bore wells assignment help-homework help by online collection of rainwater from terrace tutors
tutorsglobe.com fourth law of lamarckism assignment help-homework help by online lamarckism tutors
tutorsglobe.com biological applications assignment help-homework help by online viscosity tutors
an open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks (pans) with high levels of security is termed as bluetooth.
a wire’s length lying in the magnetic field and where an emf is induced is termed as a coil.
tutorsglobe.com alfred marshall’s definition assignment help-homework help by online nature and scope of economics tutors
We boast a panel of apt Arithmetic Assignment Help tutors offer top-notch solutions at pocket friendly prices and ensures A++ grades.
tutorsglobe.com aggregate demand assignment help-homework help by online simple theory of income determination tutors
It might not be out of place here to understand the mean of the word ‘value’. Since a matter of fact, the word ‘value’ comprises dissimilar meanings for dissimilar persons.
1932532
Questions Asked
3689
Tutors
1441796
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!