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What is the role of DNA gyrase in transcription?
a. It assists in the formation of termination hairpin structures.b. It melts the DNA duplex to form the transcription bubble.c. It removes the positive supercoils generated ahead of RNA polymerase.d. It breaks the hydrogen bonds between DNA and RNA during transcription termination.e. It removes the negative supercoils generated behind RNA polymerase.
Select an organism which consists of a population having two distinct traits. You can be creative here (red and green beetles, humans with red hair and brown hair, birds with short beaks and long beaks and so on).
You are investigating the scene of a hit and run where somebody's pet dog was killed. It is a very hot day so the dog's body temperature is unlikely to yield any important information regarding the time of death. The dog's limbs are movable and th..
You run a test of a tall pea plant. your results are 135 tall and 2 short. What is the genotype to the tall parent? Prove with a punnett squate.
In most biology experiments the relationship between the independent and the dependent variable can be best described as cause and effect. Describe.
Determine what of the following describes the immediate spatial relationship of the left kidney to other structers on posterior abdominal?
the reversion precisely reversed the original change that produced the typ- mutant allele.
How did you weigh the different pieces of evidence to reach a conclusion to questions (2) and What evidence was most important, what was least important, etc.?
Your sympathetic nervous system works in your "fight or flight" response. your parasympathetic nervous system works in our relaxation response. which do you suppose would cause your pulse to race ? why?
How many different combinations of phenotypes could exist of these 7 paired traits . What proportion would be heterozygous in every trait after 2 years.
Describe the care that Sue received. Why did not the nurses who took care of her put themselves in her position and take better care of her?
Propose a hypothesis to explain the current decline in Songbird numbers. Design an experiment that could test your hypothesis.
Explain the process of the Meiosis and the Sexual Life Cycles. Eukaryotic cells may divide through the mitosis or meiosis. In humans, mitosis generates new cells for the growth and repair.
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