Biology, 30.11.2019 04:31 kierraware04
Density-dependent inhibition is a phenomenon in which crowded cells stop dividing at some optimal density and location. this phenomenon involves binding of a cell-surface protein to its counterpart on an adjoining cell's surface. a growth inhibiting signal is sent to both cells, preventing them from dividing. certain external physical factors can affect this inhibition mechanism.
select the statement that makes a correct prediction about natural phenomena that could occur during the cell cycle to prevent cell growth.
a) as cells become more numerous, they begin to squeeze against each other, restricting their size and ability to allow cell growth.
b) as cells become more numerous, the protein kinases they produce begin to compete with each other until only one cell has the proteins necessary for growth.
c) as cells become more numerous, the amount of required growth factors and nutrients per cell becomes insufficient to allow for cell growth.
d) as cells become more numerous, more and more of them enter the synthesis part of the cell cycle and duplicate dna to inhibit cell growth.
Answers: 2
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Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?
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Coat color in cats is determined by genes at several different loci. at one locus on the x chromosome, one allele (x ) encodes black fur and another allele (xo) encodes orange fur. females can be black (x x ), orange (xoxo), or a mixture of orange and black called tortoiseshell (x xo). males are either black (x y) or orange (xoy). bill has a female tortoiseshell cat named patches. one night, patches escapes from bill\'s house, spends the night out, and mates with a stray male. patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. what are the genotypes of patches, the stray male, and the kittens?
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Development has provided electrically for less money but what may be considered a cause of nuclear power
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Density-dependent inhibition is a phenomenon in which crowded cells stop dividing at some optimal de...
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