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Each question is true or false... can you please explain why each question is either true or false, depending on the answer. Thank you.
1. Consider an atom of nitrogen (N), which is more electronegative than an atom of hydrogen (H). N has 5 valence electrons, whereas H only has 1 (H can only form 1 total pair of electrons in it's valence shell) ... Given this information: If an atom of N were to bind with 3 H atoms, the newly formed compound NH3 would likely be a polar molecule.
2. Given this information: If an atom of N were to bind with 3 H atoms, it the newly formed compound NH3 would likely be hydrophobic.
3. DNA that contains 40% G will be more stable in changing conditions (such as increasing heat) than DNA containing 40% A.
4. DNA polymerase is binding to DNA.
5. The nitrogenous bases on the nucleotides used by DNA polymerase to synthesize new strands of DNA have been removed.
6. There are no free-floating deoxyribonucleotides in these cells.
A white lady, aged sixty, and she has lived in the USA all her life. She has three children, is 160 cm high and weighs ninety kg.
Assessing spinal nerve damage may involve the use of a vibration fork that is tapped along segments of the spinal nerve pathway. Which type of sensory receptor detects vibrations
The F- strain is unable to synthesize these amino acids; therefore, they must be supplied in the growth medium. Utilize the results from replica-plating to reply the questions.
How does heat affect the tripariat thermal structure of a lake (epiliminion, thermocline and hypolimnion) during the summer and does the application of wind change this?
Enzymes greatly decrease the activation energy. Describe two of the ways they do this and be specific in terms of chemical mechanisms.
Draw up a clearly labelled and appropriate 2 x 2 table to show these data. How many times more likely was a smoker to develop lung cancer than a non-smoker?
In thefirst week of his new job he noticed he felt weak and short ofbreath. An ECG revealed an enlarged P wave. What abnormality do youthink it would be likely that his physician would hear in herstethoscope? What would cause this unusual sound?
What are the genotypes of parent orange-fruited plants. Within the two groups defined by bone mass smaller skeletons have bones with evidence of epiphyseal plates should be. Give the age group and gender of the individuals in this fine.
Explain the mechanisms involved in the development of hypothermia, and explain the pathogenesis of the symptoms this man will be having
What is the least common DNA lesion.
Describe 3 roles of the bicarbonate ion in the body ( hint:one is not a respiratory function) A person was brought to the emergency room unconscious.Breathing was shallow and irregular. A blood sample showed theblood pH to be 7.18(normal 7.4).
Explain how the microtubule binding activity of dynein, dynactin, and kinesin II is regulated by specific kinases and phosphatases during organelle transport.
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