What 3 parts are in a nucleotide? Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates. The four nucleobases in DNA are guanine, adenine, cytosine and thymine; in RNA, uracil is used in place of thymine. Which of the […]
What would happen if there was no hydrosphere on earth?
What would happen if there was no hydrosphere on earth? We know weather happens in the atmosphere, but without the hydrosphere, there would be no water to evaporate and so no cloud or rain could form. Without oceans and land (hydrosphere and geosphere), there would be no wind (as winds are produced by differences of […]
What are the 4 stages of drug development?
What are the 4 stages of drug development? Drug Development Phases Phase 1: Discovery and Development. Phase 2: Preclinical Research. Phase 3: Clinical Research. Phase 4: FDA Review. Phase 5: FDA Post-Market Safety Monitoring. What percentage of drugs get FDA approval? 9% Which drugs do not need an FDA approval? A few current (and some […]
What is Isrelaxation time?
What is Isrelaxation time? Relaxation time is the time gap between two successive electron collisions in a conductor. The relationship between the relaxation time (T) and drift velocity (Vd) is given below. What is the symbol of relaxation time? (i) Relaxation time (τ): In the absence of an external electric field, the free electrons in […]
What is the resistance across A and B in the Fig 1 point?
What is the resistance across A and B in the Fig 1 point? ⟹ RAB=4+44×4=2Ω What is the total resistance between points A and point B given below circuit? Therefore, the total resistance in the circuit is 4+4+2=10 ohms. What is resistance between A and B? The three resistance of 20 ohm, 10 ohm and […]
Who is a precise person?
Who is a precise person? someone who is precise is always careful to be accurate and to behave correctly. Synonyms and related words. What are the types of precis? Explanation: Precis can be of four types. They are: precis of speech, precis of continuous matter, precis of correspondence and telegraphese. 2. Which of the following […]
How do the kidneys respond to acidosis?
How do the kidneys respond to acidosis? The kidneys respond to acid-base disturbances by modulating both renal acid excretion and renal bicarbonate excretion. These processes are coordinated to return the extracellular fluid pH, and thus blood pH, to normal following a derangement. What can the kidney do to compensate for acidosis? Renal compensation of respiratory […]
What is a healthy breathing rate?
What is a healthy breathing rate? Normal respiration rates for an adult person at rest range from 12 to 16 breaths per minute. Does your oxygen level drop when exercising? The oxygen level in your blood decreases slightly while exercising because physical activities lower the amount of oxygen that binds to hemoglobin. When you’re working […]
What are the main sources of information?
What are the main sources of information? Such sources include: the internet, newspapers, journals, transcripts from radio or TV programmes, leaflets, photographs and other artefacts (man-made objects). What are the types of information? There are four types of information: Factual. Factual information is information that solely deals with facts. Analytical. Analytical information is the interpretation […]
Do archeologists lick bones?
Do archeologists lick bones? Archaeologists sometimes used to lick artifacts they excavated in the field to determine if they were bone or not. That said, most modern archaeologists do not do either of these things because spit can contaminate artifacts, ruining archaeological information that could be picked up by things like residue analysis. Do people […]