Answer:
C.
contains genetic information and serves as the control center of the cell
Explanation:
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Answer: Option D) 8 segments, with the 2 original strands on different segments
Explanation:
During polymerase chain reaction, a double stranded DNA (dsDNA) is selectively and repeatedly copied in the PCR machine.
In the first round, the single piece of double stranded DNA (dsDNA) unwinds in two seperate strands, before complementary nucleotides are synthesized to establish double helix.
In the second round, the two dsDNA yields 4 segments before complementary nucleotides are synthesized to establish double helix.
In the third round, the four dsDNA yields 8 segments before complementary nucleotides are synthesized to establish double helix.
Thus, after 3 rounds, the two original strands are on the 8 different segments of copied DNA.
Answer:
Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes—pro means before and kary means nucleus.
Explanation:
<span><span>A DNA sequence AAT - CCG – GTG codes for </span>Asparagine – Proline- Valine.</span> Substitution mutations would be those mutations in which a single nucleotide is substituted with a different nucleotide.
The correct answer is <span>AAT - CCA – GTG because CCG changes to CCA which also codes for the proline. This means that this substitution is a silent mutation because there is no change in amino acid</span>