Which molecule is recombinant dna? a) a gene that encodes an enzyme involved in glycolysis that was obtained in the wild from a hybrid between a wolf and a coyote b) a stretch of dna that encodes an insulin molecule, created synthetically by chemists in the lab c) a stretch of dna that does not code for anything, created by pasting together dna from a mouse and dna from a bacterium d) a stretch of dna that does not code for anything, from a tomato grown in a garden e) a gene that codes for a photosynthetic enzyme found in a tomato grown in a garden
explanation: dna is a dna which is formed by laboratory methods using recombinant dna technology. in this technique molecules of dna from two different species(bacterium and human in this case) are inserted into a host organism to produce new genetic combinations that are useful to science, agriculture, medicine and industry.in this case scientists made it possible to insert human gene of insulin into the genetic material(in plasmid) of bacterium(that cannot harm human or the disease causing gene is removed). there, the recombinant bacteria is used for producing human insulin.
result: a stretch of dna that encodes an insulin molecule, created synthetically by chemists in the lab.
i believe the answer is c.
in order to urinate your urethral sphincters contract, these are two muscles used to control the exit of urine in the urinary bladder through the urethra.
(i concluded this through light research, this has not been in any of my health classes personally, so i could be incorrect.)
"what controls the release of urine from the bladder?
urethral sphincters. the urethral sphincters are two muscles used to control the exit of urine in the urinary bladder through the urethra. the two muscles are either the male or female external urethral sphincter and the internal urethral sphincter."
"does your bladder contract when you pee?
muscles of micturition: the detrusor and urethral sphincters. micturition, or urination, is the act of emptying the bladder. the detrusor muscle that surrounds the bladder contracts. the internal urethral sphincter relaxes, allowing for urine to pass out of the bladder into the urethra."