Recombinant human growth hormone (hGH), produced by bacteria carrying a cloned hGH gene, is a way of obtaining hGH for patients who have defective hGH genes. The hGH gene encodes an mRNA only 573 nucleotides long, but the entire gene spans more than 7000 nucleotides. There are two exons and three introns. If we were to clone this gene directly from the nuclear DNA, bacteria would not be able to express the hGH protein. Explain why this is true.

the right side of the picture going down is:

polymerase

protein

transport vesicle

modified protein

the left side of the picture going down is:

dna helix

single-stranded rna

endoplasmic reticulum

ribosome

golgi apparatus

protein released from vesicle

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the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

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