I guess it would have to be A
An example of a scientific investigation design that uses independent variable and dependent variable in its design is a research that seeks to find out the effect of two different fertilizers on the growth of a tuber crop (yam). The independent variable in this case is the type of fertilizer used while the dependent variable is the corresponding growth of the tuber crop. In a research set up, the independent variable is the variable that causes a change in the dependent variable and the dependent variable is the one that is been measured.
Answer: c. to have two copies of each chromosome
The simplest answer is that water is polar, while lipids are nonpolar.
The answer is d. Binds to DNA, makes mRNA from DNA, detaches.
RNA polymerase is an enzyme involved in transcription, a process of copying DNA into messenger RNA (mRNA). In the transcription, RNA polymerase first binds to DNA separating its two strands. Then, it adds ribonucleotides to the complementary nucleotides on DNA strand and, thus, it makes mRNA from DNA. After mRNA is synthesized, RNA polymerase detaches from DNA, freeing the new mRNA.
