<span>More teenagers are carrying guns.I hope this helps.
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Answer:
<em>The correct option is C) happened by chance</em>
Explanation:
Mutations can be described as any changes which occur in the DNA of an organism. Mutations can be natural or induced through methods like the use of chemicals.
Mutations occur randomly and happen by chance. Hence, option C is correct.
Other options like option A are false because mutation is the sudden change in the genome of an organism. Hence, mutations will not cause the teeth to grow longer until they reach an optimal length.
Answer:
Hello. Let me explain.
Explanation:
Chromosomes are the complex form of chromain.
Chromatins are a strand of DNA that surounded 8 histonic proteins.
When this chromatin is pressured and complex we have Chromosome which are made of two half. Each half is called sister chromatid. This two chromatides are attached from a place which is called centromer.
In cell cycle before reaching m phase the chromatins change to chromosomes.
Hope you understand.
I think personally that it should be banned so therefor my answer is never
