Akey to recombinant dna technology (genetic engineering) is the ability to cut dna at specific sites. in a genome with 50% gc content, a restriction endonuclease with a 6-base pair recognition site (such as ecori, that cuts at gaattc) will cut, on average, once every nucleotides. answer with a whole number to fill in the blank.

xcvzcxvxzv

explanation:

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

p

explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.