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jok3333 [9.3K]
3 years ago
15

describe how our darkens in the presence of sun. in your description, be sure to name the pigment that darkens our skin and desc

ribe how skin darkening protects our DNA from damage
Biology
1 answer:
Aleonysh [2.5K]3 years ago
5 0
Special cells in the skin<span>, called melanocytes, make two different types of melanin, eumelanin and pheomelanin. ... Melanin helps </span>protect our skin<span> and hair by filtering out potentially harmful ultraviolet (UV) radiation from the </span>sun. The UV light from thesun<span> can </span>damage DNA<span> and cause cancer</span>
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Explanation:

Given;

A species with a diploid number of 26,  so 26= 2n ( a diploid cell),

so in haploid condition, chromosome number becomes half (13 in this case). triplod is when 2n + n, and 2n +2n ( tetploid). Trisomy and monosomy is the addition or deletion of a sinlge chromosome of a sinlge set  .

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tetraploid=52 (13× 4) 4n

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