Apiece of dna has a sequence ttctccagacca. a copy of that piece of dna has the sequence ttcaccagacca what type of mutation happened in the new piece of dna?
a point mutation
b no mutation
c frame shift mutation
d chromosomal mutation

A. point mutation

point mutation is one in which a single base in the sequence is replaced by another base in the sequence. in this case, the nitrogenous base threonine is replaced by adenine. with a change in base, the coded amino acid can also be replaced, depending on whether this mutation is synonymous or non synonymous. 

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

D. china is one of the most active places, which could quite possibly mean more agriculture will happen.. and more war machi-    best of luck comrade.