Explain the advantage for melanin granules being located in the deep layer of the epidermis

1 answer:

4 0

UV radiation has a penetration power that can go down to the dermis, when UVA, or to the deepest layer of the epidermis, when UVB. UVA and UVB are the type of radiation that's the most potentially dangerous for DNA damaging to happen. Melanin absorbs the UV rays reducing the damage that these may produce to the living cells of the dermis and deeper, just bellow these granules.

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What is a blue moon

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The chart below shows the three main types of plant tissues and associated tissues. mc003-1.jpg Which row (A, B, C, or D) best c

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I found the exercise on the internet. Attached is the chart and the rows. On the left we have "plant tissue", then on the middle top - "dermal" - and just below - "ground". Straight in front of "ground", the term is "collenchyma".

The correct row would be D.
1. is vascular because that's the other type of plant tissue besides the ones that are already present in the chart.
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Do you know the Transcription factor name for lapF and naphthalene dioxygenase?

pickupchik [31]

Answer:

The LapF gene encodes one of the largest proteins from Pseudomonas putida, it is required for the bacterial colonization on the solid surfaces; while naphthalene dioxygenase is an enzyme required for the process of aerobic degradation of naphthalene.

Explanation:

LapF is a gene of Pseudomonas putida that is critical during the process of plant root colonization. Mutations in this gene have shown to reduce the ability to colonize plant tissues. On the other hand, the naphthalene dioxygenase gene is also encoded by the genome of Pseudomonas strains. The naphthalene dioxygenase protein catalyzes the hydroxylation of different substrates, however, this enzyme is widely known for acting during the degradation of naphthalene, an organic chemical compound that is toxic in humans.

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