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which of the following best explains mechanisms by which histones interact with dna a histone core proteins interact with the main groove of dna by
erwin chargaff conducted a series of experiments in which he was calculating the amounts of dissimilar nucleotides that were present in dissimilar
fredrick griffith published a series of experiments that collectively were dubbed the transforming principle in 1928 which of the following stopped
which of the following defines why the vast majority of segregation errors in human patients include the two sex chromosomes xxy xo xyy or chromosome
state about polyploid cellsduring development cells of certain tissues like the salivary gland and liver produce extraordinary amounts of selected
alfred sturtevant and seymour benzers studies of recombination in both drosophila and bacteriophage demonstrated which of the followinga the gene is
the method of recombination or crossing-overwhich of the following is a false statement regarding the method of recombination or crossing-overa
gregor mendels law of independent segregation referred to which of the following genetic elementsa alleles of two genes that reside on the similar
determine the tenant of the cell theory which of the following is not a tenant of the cell theory as postulated by mathias schleiden and theodor
defines the tenants of pangenesis theorywhich of the following best defines the tenants of pangenesis theorya the hereditary material is composed in
match each of the methods or vectors below to an appropriate form of gene therapy assigning two methods or vectors to each form use each method or
what is optic chiasma this structure makes upto portion of the anterior inferior floor of the third ventricle it is shaped like a flat oblong
what is optic nerve the optic nerve contains more than one million axons that initiate in the ganglion cell layer of the retina this structure
how many layers in retinathe retina is composed of ten layersa pigmented epithelium outermost layerb neusoepithelium rods and
describe in detail about retina the retina is a highly complex layer of nervous tissue the photoreceptors are rods and cones for scotopic and
what are the physical properties of tear filmphysical properties of tear film the tear film is a three-layered structure as given below1 outermost
what factors causing short-term changes in intra-ocular pressure1 arterial blood pressure2 systemic venous pressure svp3 mechanical pressure4 plasma
illustrate about the intra-ocular pressureit is the pressure maintained inside the eye above the atmospheric pressure it is higher than fluid
state about the blood-aqueous barrierthere is a blood-aqueous barrier which prevents the movement of substances from the plasma to the aqueous humour
define the term -aqueous movement and outflow there are two movements of the aqueous humour that occur-thermal flow and bulk flow thermal flow is an
what is active transport--secretion this method is now a well accepted process of aqueous formation the rate of aqueous humour formation depends on
explain the term-diffusiondiffusion occurs from the side of greater concentration to the side of lesser concentration in aqueous humour this occurs
define the term- ultrafiltrationultrafiltration occurs when the flow of a substance across a cell membrane is increased by a hydrostatic pressure
formation of aqueous humourit is universally accepted that the aqueous is produced by the ciliary processes although
illustrate the structure and functions of aqueous humouraqueous humour is a clear fluid that fills the anterior and posterior chambers of the eye and