It refers to making or crating new genes in form of mutation
in duplicates of old genes. It is also a mechanism in major way through new
genetic material is generated during evolution. The duplication happens in
event termed unequal crossing over or recombination between misaligned
homologous chromosomes during meiosis.
Answer: C
Explanation: The two chromatids of a duplicated chromosome are held together at a region of DNA called the centromere. Centromeres are the attachment points for microtubules, which are responsible for the guiding the movement of chromosomes during mitosis and meiosis.
Answer:
scientific theory means an idea or proposal of a concept where as an opinion is a thing where u chose something
Explanation:
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Several hours after your last meal, declining blood glucose levels stimulate release of the hormone <u>glucagon</u> , which stimulates glycogenolysis, lipolysis and fat mobilization, and gluconeogenesis.
<h3>How does glucagon stimulate gluconeogenesis?</h3>
The biological process through which glycogen degrades into glucose and glucose-1-phosphate is known as glycogenolysis. Hepatocytes and myocytes both participate in the response. Two important enzymes, glycogen phosphorylase and phosphorylase kinase, control the process.
By increasing the activity of hepatic adipose triglyceride lipase, intrahepatic lipolysis, hepatic acetyl-CoA content, and pyruvate carboxylase flux, as well as increasing mitochondrial fat oxidation, glucagon stimulates hepatic gluconeogenesis. All of these actions are mediated by stimulation of the inositol kinase.
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A Different enzymes<span> are synthesized in </span>specific<span> areas of the cytoplasm. B Most </span>enzymes<span> can </span>catalyze<span> many different </span>reactions<span>. C An </span>enzyme<span> binds to a </span>specific<span> substrate (reactant) for the </span>reaction catalyzed<span>.</span>
