«TETRASPORIC» এর সঙ্গে সম্পর্কিত ইংরেজী বই
নিম্নলিখিত গ্রন্থপঞ্জী নির্বাচনে
tetrasporic শব্দটির ব্যবহার খুঁজুন। ইংরেজী সাহিত্যে
tetrasporic শব্দের ব্যবহারের প্রসঙ্গ সম্পর্কিত বই এবং তার থেকে সংক্ষিপ্তসার।
1
Publications - Puget Sound Biological Station
In a later paper he says that Polysiphonia violacea plants which have attained
any considerable size, die at the approach of cold weather while the young
tetrasporic sporelings are dormant during the winter. Thus at Woods Hole
Polysiphonia ...
Puget Sound Biological Station,
1917
2
Asian Pacific Phycology in the 21st Century: Prospects and ...
3). All the plants observed from December 1996 to February 1997 were
vegetative. Tetrasporic plants were first observed on 23 March 1997 and 15.9%
of the plants were tet- rasporic. This percentage occurrence increased to 50% on
13 April ...
3
Krishna's Objective Question Bank in Biology
(C) Tetrasporic Embryo Sacs When all the four megaspore nuclei are involved
the formation of the female gametophyte, the development is said to be
tetrasporic. The tetrasporic embryo sacs are classified on the basis of (i) the
number of ...
N Saxena, S Sharma, S Sharma
4
Oceanography And Marine Biology
germlings or vegetative propagation were found in several years of research,
although individual clones of the species were observed to survive and remain in
the same position for many years. Tetrasporic thalli of this species occur
southward ...
5
Major Evolutionary Transitions in Flowering Plant Reproduction
In several cases, the evolution of different apomorphic female gametophyte
ontogenies (e.g., Fritillaria-type and Penaea-type) has led to identical endosperm
genetic constructs (e.g., tetrasporic pentaploid). In any case, we hope that we
have ...
Spencer C. H. Barrett,
2008
The type of female gametophyte is dependent in part on the pattern of
megasporogenesis, whether tetrasporic, bisporic, or monosporic. The most
common and presumably ancestral type of female gametophyte in the
angiosperms is one that ...
Synergid Vacuoles Endoplasmic Reticulum Mitochondria Filiform Apparatus Fig.
316. Diagrammatic representation. Fig. 314. Development of various types of
tetrasporic embryo sacs. Fig. 317. Quinchamalium chilense : A. Showing
synergid ...
The tetrasporic plant is asexual and diploid and it produces tetrasporangia, the
asexual reproducing bodies. They are spherical structures and may occur singly
or in groups on both the surfaces. The small cell of the surface layer enlarges,
cuts ...
9
Behavioral Adaptation to Interdial Life (Nato Asi Series A, ...
Specificity of grazing on Iridaea cornucopiae Iridaea cornucopiae has three
readily distinguishable stages to its lifecycle: infertile, tetrasporic and carposporic.
These are superficially similar, with a creeping holdfast and a few upright
flattened ...
Guido Chelazzi, Marco Vannini,
1988
10
Flowering Plant Embryology
O monosporic bisporic tetrasporic A B C ure 6.9A-C. Three pathways of
megasporogenesis. A. Monosporic, producing a uninucleate ctional megaspore
after three others degenerate. B. Bisporic, with binucleate dyad forming ctional ...