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q what is the acrosome of the sperm cell how is it formedthe acrosome is a structure that contains a great number of digestive enzymes it is formed
q what is the difference between sperm and spermatids cells what is the name of the transformation of spermatids into sperm cellssperm cells the male
q what is the difference between spermatid and spermatocyte iithe spermatids n are the products of the second division of meiosis meiosis ii in the
q what is the difference between spermatocyte ii and spermatocyte ithe spermatocyte i 2n undergoes the first division of meiosis meiosis i
q what is the difference between spermatocyte i and spermatogonium the male germ cells are the spermatogonia diploid cells 2n situated in the
q indicating the name and respective ploidy of each involved cell how can the formation of sperm cells from germ cells be describedthe formation of
q what are gonads what are the male and the female gonads in humansgonads are the organs that produce gametes they contain the germ cells that
q what is the name of the cells capable of making gametes what is the ploidy of these gamete-forming cellsthe cells that form gametes are the germ
q what is the kind of cell division that allows sexual reproduction what is gametogenesismeiosis is the kind of cell division that permits sexual
q what are gametesgametes are cells specialized in sexual reproduction and they contain half of the maximum number of chromosomes of the species and
q what is the name given to conditions in which the own immune system of the individual is the agent of diseases what are some examples of these
q what is the dna vaccinethe dna vaccination or is a vaccination technology based on genetic engineering in dna vaccine a recombinant plasmid vector
q why are vaccines used in the prevention but not in the treatment of infections why can antivenom serums be used in prevention and treatmentvaccines
q why does not a long lasting vaccine against common cold exist yetviruses that present a high mutation rate like the virus that causes the common
q what are the types of antigenic agents that may constitute vaccinesvaccines can be constituted of dead agents of disease of inactivated toxins of
q why are vaccines made of the own disease agent or of fragments of itthe goal of vaccines is to artificially induce a specific primary immune
q what are artificial active immunization and natural active immunizationnatural active immunization is that in which a previous natural infection
q what is the difference between heterologous and homologous immunoglobulinshomologous immunoglobulin is the human from the same species
q how are antivenoms produced why are antivenoms an example of passive immunizationantivenoms are obtained by the following process the venom antigen
q why is maternal milk important for the immune protection of the babybesides being nutritionally important like maternal milk participates in the
q what are active and passive immunization according to the duration of the protection how do these types of immunization differactive immunization
q what are the antigen-presenting cells of the immune systemthe antigen-presenting cells of the immune system also known as apc cells are cells that
q how does the cellular immune response take placethe lymphocytes that participate in the cellular immune response are the t lymphocytes and t
q how different are the actions of antibodies against virus and against bacteria why is the cellular immune response activated in case of chronic
q how can the immune memory lead to the efficacy of vaccines and also produce allergiesvaccines are controlled inoculations of fragments of inactive