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slamgirl [31]
3 years ago
10

Which amino acid is critical for crosslinking of keratin fibers?

Biology
1 answer:
Naya [18.7K]3 years ago
8 0
In order for a eukaryotic gene to be engineered into a bacterial colony to be expressed, what must beincluded in addition to the coding exons of the gene?A) the intronsB) eukaryotic polymerasesC) a bacterial promoter sequenceD) eukaryotic ribosomal subunitsE) eukaryotic tRNAs
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Answer:

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Explanation:

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3 years ago
The thymus becomes smaller with age as well as _____.
jok3333 [9.3K]
The thymus becomes smaller with age as well as decreased immune system function.
The process of shrinking of the thymus is known as involution. This process occurs with any tissue that is not in frequent use. Before an individual reaches adulthood, the immune system has produced most of its T-cells. Therefore, new T-cells do not need to be produced, so the tissue of the thymus gland is replaced by adipose tissue.
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4 years ago
The figure shown above shows the energy levels for a hydrogen atom. What is the energy of the photon emitted when the electron i
tankabanditka [31]
The <span>energy of the photon emitted when the electron in a hydrogen atom drops from energy level E5 to energy level E2 is 2.85eV

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</span>the energy of the first state (n = 1) is -3.39 eV.
the energy of the fifth state is -0.54 eV.

Now, When an electron drops from higher to lower state, then energy difference is same as the energy of the photon emitted, is
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= -0.54 eV -(-3.39 eV)
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It conveys emotions or moods.
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