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abruzzese [7]
3 years ago
9

Explain how conversion of a normal somatic cell into a malignant one requires multiple mutations.

Biology
1 answer:
MAXImum [283]3 years ago
3 0

Answer:

Mutation is the alteration in the DNA base sequence in an organism.it may be due to chemical or environmental effect on the somatic cells..

Generally ,most cancers are caused by mutation in DNA components of abnormal cells.

Basically proto-oncogene is responsible for cell growth and cell division before mitosis in normal healthy cells;thus its codes for the main protein specific for cellular functions in normal cells. Therefore for mutation to occur mutations in mutiple genes is important. .

Basically 2 p53 alleles must be mutated,

2 BRCA1 allele must be mutated,

and 1 mutated allele of HER2 mus be mutated.

All these multiple mutations in these genes are needed.

Explanation:

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For a species with a diploid number of 26, indicate how many chromosomes will be present in the somatic nuclei of individuals th
zhuklara [117]

Answer:

<h2>Haploid=13</h2><h2>triploid=39 </h2><h2>tetraploid=52</h2><h2>trisomic=14 </h2><h2>monosomic=12</h2>

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  .

Haploid=13, one chromosome from each pair of chromosome set,

triploid=39 (13× 3); diploid+ n( 3n)

tetraploid=52 (13× 4) 4n

trisomic=14 (13+1) ; n+1

monosomic=12 (13-1); n-1

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2 years ago
If green is dominant over purple then what is the genotype for this individual
aleksklad [387]

Answer: gg

Explanation:

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What organic molecules are important to your life?
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Proteins. ...

Carbohydrates. ...

Lipids.

Explanation:

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