Answer: Option C) the parental DNA splits and free nucleotides bond to their complements, building two DNA molecules from one.
Explanation:
In semi-conservative DNA replication,
- a parent double-stranded DNA splits in two.
- Each strand is then read by the enzyme, DNA polymerase, to ensure accurate replication of a newly synthesized strand
- the new strand contains nucleotides that are complimentary to free nucleotides present in the parent strand.
Thus, option C perfectly describes semi-conservative replication of dna
Answer:
Evolution
Explanation:
Natural selection is usually defined as a process by which an organism or a specific type of living species adapts to a new environment in order to grow, develop, reproduce and protect themselves from the predators. During this time of migration, evolutionary changes occur in organisms over a specific period of time. It occurs naturally and there are several factors that affect these changes occurring in an organism.
Evolution simply refers to the growth, development, and expansion of an organism that occurs over a definite time period.
An ephemeral stream is<span> a wetland, spring, stream, river, pond or lake that only exists for a short period following precipitation or snow melt.</span>
Answer:
True
Explanation:
In cell biology, the centrosome is the main microtubule organizing center that is important for cell division. The major function of the centrosome is to maintain the chromosome number during cell division.
Other function of centrosome during cell division include initiate the changes in cell membrane shape through phagocytosis and organize microtubules in mitosis that ensures the distribution of the centrosomes into daughter cell.
Hence, the given statement is true.
