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Margarita [4]
3 years ago
13

Explain how scientists use recombinant DNA technology to produce the drug insulin. Be sure to also explain why a gene from one o

rganism can be expressed by another organism.
Biology
1 answer:
Goshia [24]3 years ago
7 0
<span>You can express the gene of one organism in another one because the translation from DNA to protein is the same in all organisms. For the same nucleotide sequence, you will get the same amino acid sequence in your protein. There are some epigenetic differences between eukaryotes and prokaryotes (this means, the DNA is modified differently in the organisms). But you can avoid that.</span>
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Which human activity would help reduce the amount of carbon dioxide in the atmosphere
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Answer:

Burning coal  

Explanation:

The emissions of carbon dioxide would reduce because then they will consume less gasoline. Instead of coal burning, this would reduce the overall concentrations of greenhouse gas emissions and generate energy from wind.

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Which terms are used for gametes that are needed for reproduction in vertebrate animals?
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They need:

Egg and sperm
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Write a summary about the cell theory
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Answer:

Over the next two centuries after the discoveries of Hooke and Leeuwenhoek, biologists found cells everywhere. Biologists in the early part of the 19th century suggested that all living things were made of cells, but the role of cells as the primary building block of life was not discovered until 1839 when two German scientists, Theodor Schwann, a zoologist, and Matthias Jakob Schleiden, a botanist, suggested that cells were the basic unit of structure and function of all living things. Later, in 1858, the German doctor Rudolf Virchow observed that cells divide to produce more cells. He proposed that all cells arise only from other cells. The collective observations of all three scientists form the Cell Theory, which states that:

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all cells come from preexisting cells.

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all known living things are made up of one or more cells,

all living cells arise from pre-existing cells by division,

the cell is the fundamental unit of structure and function in all living organisms,

the activity of an organism depends on the total activity of independent cells,

energy flow (metabolism and biochemistry) occurs within cells,

cells contain hereditary information (DNA) which is passed from cell to cell during cell division,

all cells are basically the same in chemical composition in organisms of similar species.

The Cell Theory is one of the main principles of biology. The points of the theory have been found to be true for all life. As with any scientific theory, the Cell Theory is based on observations that over many years upheld the basic conclusions of Schwann’s 1839 paper. However, one of Schwann’s original conclusions stated that cells formed in a similar way to crystals. This observation, which refers to spontaneous generation of life, was discounted when Virchow proposed that all cells arise only from other cells. The Cell Theory has withstood intense examination of cells by modern powerful microscopes and other instruments. Scientists continue to use new techniques and equipment to look into cells to discover additional explanations for how they work.

Explanation:

Hope I helped!

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