Answer:
C
Explanation:
Natural Selection can cause micro evolution, or a change in allele frequency over time
Hey there,
The answer is grief
Hope this helps :D
<em>~Top</em>
Answer:
Please read explanation section.
Explanation:
MPF is a protein kinase. It catalyzes the transfer of a phosphate group from ATP to target proteins.
One of the pathways which are stimulated by the MPF is an enzyme that destroys cyclin. This means it stimulates the cyclin pathway. As mitosis gets initiated, the enzyme that breaks down cyclin becomes activated, and levels of cyclin start to be dropping down. The declining levels of cyclin lead to reduced levels of the MPF.
Answer:
Rapidly and Accurately
Explanation:
As an example, eukaryotic human DNA replicates at a rate of 50 nucleotides per second.
Replication occurs so quickly because multiple polymerases<em>, or think: enzyme+polymer=polymerase,</em> can synthesize<em>, or combine or fuse,</em> two new strands at the same time by using each untwined strand from the original DNA double helix as a guide.
DNA replication is so much faster than bacteria replication because it's extremely difficult to replicate DNA accurately, as well as copying molecules that tightly complexed with histones in nucleosomes, which work together to form chromatin, which is the material that chromosomes are composed of, and it's further composed of protein (histones), DNA, and RNA.
Therefore, the reason for human cells taking significantly less time to replicate its genome is <u>accuracy</u>.
B is false, enzymes speed up the reaction by lowering the activation energy needed for the reaction to start.
Answers B