Answer:
a. eukaryotes have three different RNA polymerases, whereas prokaryotes only have one RNA polymerase
Explanation:
The initiation represents the beginning of RNA production. Initially, RNA polymerase (transcription catalyzing enzyme) recognizes in DNA the so-called promoter regions. In prokaryotes, there is only one type of RNA polymerase; In eukaryotes, three RNA polymerases are described, and thus the transcription process in this group is more complex.
In the initiation step, we also observe the opening of the DNA strand, a process known as unfolding. This opening occurs because of the rupture between the connections that arise between the bases.
Answer: This is due to the theory of independent assortment of gene.
This means that gene separate and assort with each other, independently. There a gene that is recessive in the parents may not be recessive in the offspring.
A recessive gene is the gene that makes up the physical appearance of the offspring. While a dominant gene is the gene that exist in the offspring, but is not among the gene that makes up the physical appearance of the offspring.
For the two pure stock parent plants, their have yellow and blue as the dominant gene, while green and white are the recessive gene.
That's is why the yellow and blue gene has a tendency of occurrence in future generations.
For their first progeny which appears to be all green, is because the green gene has sorted themselves independently to be recessive, while others become dominant.
For the second progeny, the recessive gene from the parent plants which was carried by the offspring as dominant gene, now became recessive in some plants.
I think the answer is sample 1
Hope this helps!
