Answer:
b. locate replication sites.
Explanation:
During replication, the function of the enzyme DNA polymerase is to locate replication sites.
Using a molecular clock, scientists are able to estimate the amount of time that two species have been evolving independently.
Hope this helps :)
Hello friends..
Some (not all) of the nutritional value in vegetables is lost during the cooking process – but why? Vegetables are packed FULL of vitamins, which are essential for our overall diet and the chemical reactions within our bodies.
Vitamins are split up into two different groups: water-soluble (B-complexes, and C) and fat-soluble (A, D, E, and K). During the cooking process, water-soluble vitamins are more likely to be destroyed.
Hope this answer helps you..
Answer:
a. positive; negative
Explanation:
Transcription is the process of forming an RNA molecule from a DNA template molecule. In this process, the strands of DNA separate and one serves as a template for RNA, while the other is inactive. At the end of the transcript, the tapes that have been split back together again.
The transcription process is divided into three steps: initiation, stretching and termination
During the stretching phase, transcription chain elongation occurs. In this phase the enzyme called RNA polymerase starts to move through the DNA molecule, unwinding its helix and producing an increasingly lengthened RNA molecule. The already transcribed DNA is rewound almost immediately, recomposing its double helix. This process is called the elongation phase.
During this process, it is believed that positive supercoils are generated ahead of the transcription bubble and and the negative supercoils behind it.
