Answer:
The CRA-cAMP complex increases the rate of expression of lac operon when glucose is absent and lactose is present as nutrient.
Explanation:
CRP is the catabolite gene activator protein that forms a complex with cAMP. The CRP-cAMP complex facilitates the binding of RNA polymerase to the promoter region of the lac operon. This robust binding as stimulated by CRP-cAMP complex is followed by the formation of open complex and initiation of gene expression.
Hence, the CRP-cAMP complex positively regulates the lac operon and increases its expression when glucose is not present.
Answer:
2. Alec Jeffreys
Explanation:
'DNA fingerprinting' or DNA typing (profiling) as it is now known, was first described in 1985 by an English geneticist named Alec Jeffreys. Dr. Jeffreys found that certain regions of DNA contained DNA sequences that were repeated over and over again next to each other.
Answer:
The given statement is true.
Explanation:
- Sustainability aims to satisfy immediate requirements, without either undermining skilled workers' opportunity to accomplish about there requirements or needs.
- It allows companies to decide on their lengthy effects throughout regulatory, socioeconomic, as well as evolutionary terms as well as on quick benefits, including such income reports during the next half portion.
I think the correct answer from the choices listed above is option C. Generally speaking, the type of STI that is generally not life-threatening would be parasitic. This is because it is known and shows a few symptoms which is helpful in diagnosing it. One common parasitic STI is called the trichomoniasis.
I'm not quite sure as to what your question means, but here's an attempt to answer:
1. Evolution (Who are our ancestors and how did we evolve), Universe (Are we really alone in the universe or are there extra-terrestrial life?), Medical (How do we beat bacteria?), amongst others.
2. If you meant as to what contextual (for the lack of a better word) devices they use (i.e. a textbook or the internet) then many scientists use a variety of things to start a hypothesis or their brains working. In this case, dreams can also help them. Many famous scientific discoveries were formed from way of the subconscious mind, like Mendeleev (who created the periodic table, or rather founded the idea of it.) There's also Alfred Russel Wallace (he discovered evolution based upon natural selection), Ellas Howes (who we all should thank because without him clothes wouldn't be sewn with a sewing machine...and might be a LOT more expensive then they are..) and we all know Einstein-Albert Einstein.
I hope that I was of help, if you need more clarification please don't hesitate to ask.