Flowering plant (angiosperm) gametes develop by mitosis from haploid gametophyte cells that are formed by meiosis from diploid sporocytes. Male gametes are contained within multicellular pollen grains and female gametes within a multicellular embryo sac. Transient callose walls are a conspicuous feature ...
Both males and female gametes are formed by a process known as “gametogenesis” in their respective reproductive organs. During the process of gametogenesis, a diploid (2n) cell undergoes meiosis to produce four haploid (n) cells. In general, the process of gametogenesis usually starts withgameto...
Neither gH2B nor gH3 was detected in microsporocytes during meiotic division or in microspores before microspore mitosis. However, both gH2B and gH3 were abundantly present in mid bicellular pollen and these histones continued to be detectable in germinated pollen tubes after pollination. Further...
How are the products of meiosis and the products of mitosis different? How are pollination and fertilization related? How does the process of crossing over during meiosis increase genetic diversity? The male gamete is called ___. How many male and female gametes are required to form 100 zygote...
When are sister chromatids formed - in mitosis or in meiosis? How are cells in the epidermal tissue adapted? The egg cell of a rabbit, which is a diploid organism, has 22 chromosomes, so how many chromosomes can be found in a rabbit's neuron cell?
A gamete is the male or female reproductive cell that contains half the genetic material of the organism.
As nouns the difference betweengametophyteandgamete is thatgametophyteis a plant (or the haploid phase in its life cycle) which produces gametes by mitosis in order to produce a zygote whilegameteis a reproductive cell (male (sperm) or female (egg)) that has only half the usual number of ...
Young floral buds at the sporad stage (post-meiosis but before cytokinesis) were used to estimate the production of unreduced gametes based on the number of nuclei present in each sporad: monads, dyads, triads, tetrads, pentads and hexads. As well as a high frequency of tetrads, dyads...
Deguchi, R. and Osanai, K. (1994) Repetitive intracellular Ca2+increases at fertilization and the role of Ca2+in meiosis reinitiation from the first metaphase in oocytes of marine bivalves.Dev. Biol.163, 162-174. Google Scholar Deguchi, R. and Morisawa, M. (1997) Spatial patterns of incr...
a) Cellular respiration b) Mitosis c) Protein synthesis d) Meiosis When a diploid cell goes through meiosis, what happens to it? What is a haploid sex cell, egg or sperm, that contains a single copy of each chromosome called? Why does a diploid mother cell that undergoes meiosis produce ...