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the process of meiosis in animals is called gametogenesis it takes place in the testis in male and ovary in femalegametogenesis is divided into
divisions of meiosismeiosis is characterized by two nuclear divisions meiosis i and meiosis iibullthe first division is a reduction divisionbullthe
meiosis is the special type of cell division in which the numbers of chromosomes in daughter cell are reduced to half as compared to parent
the voltage across the terminals of a cell when it is supplying current to external resistance is known as potential difference or final voltage
bullcancer cells do not respond normally to the bodys control mechanismothey divide excessively and invade other tissuesoif left unchecked they can
the potential difference across the terminals of a cell when it is not supplying any current is known as its
alpha -elimination reactions or 11-elimination reactions a reaction where both the groups or atoms are removed from similar carbon of the molecule is
bullcyclins accumulate during the g1 s and g2 phases of the cell cycle bullby the g2 checkpoint the red bar in the figure enough cyclin is available
rhythmic fluctuations in the abundance and activity of cell-cycle control molecules pace the events of the cell cycle bullkinase - a protein which
the cell cycle is controlled by a cyclically operating set of reaction sequences that both trigger and coordinate key events in the cell cyclebullthe
the device which changes chemical energy into electrical energy is called as electric cell battery is a host of constant emf but not constant
equal distribution of hereditary materialin mitosis the heredity material is equally distributed in the daughter cell2no change in genetic
are made up of alloys manganin constantan or nichrome these materials have moderate resistivity which is practically independent of temperature so
types of elimination reactionselimination reactions are divided into two general categoriesa alpha- elimination reactions or 1 1-elimination
cytokinesis in an animal cellsplitting of the cell is called cytokinesis which starts at telophase in animal cells microtubules form a furrow in a
the movement of the chromosome is called anaphase a and the extension of the poles is termed anaphase bthe mechanism of these movements are
the characteristics of substance by virtue of which it opposes the flow of current by it is called as the
free radical addition reactions those reactions that include the initial attack by a free radical are termed as free radical reactions inculcation of
the charged particles whose flow in a exact direction constitutes the electric current are known as current carriers in separate positions current
metaphase chromosomes each metaphase chromosomes is a duplicated structure which consists of two sister chromatids attached at a point called
phases of karyokinesiskaryokinesis can further be divided into prophase metaphase anaphase and telophase1-prophase pro beforechromatin during
at the beginning of the process in an animal cell the partition of the centriole takes place which has been duplicated during interphase but were in
apparently the untwisting unzipping rezipping and retwisting occur sequentially and ensure that each newly formed double helix is exactly like other
nucleophilic addition reactionswhile the addition reaction takes place on account of the initial attack of nucleophile the reaction is known as a
electrophilic addition reactionsa such types of reactions are generally provided by alkynes and alkenesb electrophilic addition reactions of alkynes