Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
reviews - assurance engagementsthe objective of financial statements of a review is to enable an auditor to state where on the essential of
definition of auditing according to the international standard on auditing isa no 200 objective and common principles governing an audit of financial
oogenesis in mammals in mammals also the oogonial cells are derived from primordial germ cells the multiplication phase that is all of the oogonial
mechanism of maturationthe basic mechanism of maturation of ovum is more or less similar in all organisms the primordial germ cells that enter into
vitellogenesisvitellogenesis is the stage where much of the oocyte growth occurs the completion of second maturation division meiosis which may occur
oogenesis oogenesis is the formation of ovum from oogonial cells that are formed in the ovary from primordial germ cells and as in spermatogenesis it
tail - structure of the spermthe tail or flagellum is the longest part of the sperm by its movement it causes the sperm to swim with the head forward
middle piece - structure of the spermjust behind the head the small constriction neck carries a distal and a proximal centriole the two lie at right
head - structure of the sperm it exhibits a diversity of shapes in different animal groups eg spherical teleost fishes rod or lance shaped amphibians
spermiogenesis - spermatogenesisat the end of the meiosis the spermatids appear as simple spherical cells with a centrally located nucleus their
spermatogenesis in multicellular organisms the reproductive process commences with the production of gametes the gametes are the sex cells that
future - development biologyfertilization in flowering plants is essential for sustaining life on earth production of most crops depends on the
suspensor - pollen biologythe structure and function of suspensor have not been given adequate attention during the last decade however
embryo - pollen biologythe suspensor cells of young embryos of tropaeolum majus show that the activity of acid phosphatase increases from micropylar
endosperm - pollen biologythe examination of live material of j montana reveals that the division of the primary endosperm nucleus is transverse
pollen biologyfluorescence microscopy coupled with biochemical analysis has helped resolve the differential activity of the enzyme beta-l 3-
production of industrial compoundscultured plant cells retain their metabolic potential and synthesise secondary products of commerce cell cultures
germplasm conservation - plant tissue and organ culturetotipotent plant cells and shoot tips can be freeze-preserved in liquid nitrogen -196 c for
merits of micro propagationthe special merits of micro propagation are1 it considerably increases the rate of multiplication2 high rate of
transplantation - clonal propagationthe shoots or plantlets multiplied on a medium containing organic nutrients show poor photosynthetic capability
shoot multiplication -clonal propagation this is the most important step with respect to the rate of propagation and genetic uniformity of the
clonal propagation most cultivars of ornamental and fruit species and forest trees are highly heterozygous consequently their seed progeny is not
androgenic haploidsandrogenic haploids of some species such as wheat mustard and tobacco can also be raised through isolated microspore pollen
production of disease-free plantsunder normal conditions plants are infected by a wide range of pathogens such as bacteria fungi viruses viroids and
haploid productionthe higher plants are normally diploid with two sets of chromosomes in their somatic cells their haploids with one set of