Answer:
The size of hailstones usually increases with the intensity of the storm cell from which they spawn. To form hailstones the size of golf balls requires over ten billion supercooled droplets be accumulated, and thus they must remain in the storm cloud for at least 5 to 10 minutes. (Compare this to the one million or so droplets needed to form the typical raindrop.) Therefore, large hail (> 5 cm / 2 inches) forms mostly in super cell thunderstorms which have strong updraft winds.
Explanation:
Answer:
1.a current in a fluid that results from convection.
2.measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls.
Explanation:
Answer:
Explanation:
The switch from glutamic acid to valine in position 6 of hemoglobin (HB) forms the basis of sickle cell anemia disease pathology.
Valine is hydrophobic and it's chain is shorter than glutamic acid. The lack of the carboxylic acid and shortness of valine will result in loss of the ionic interactions formed between the glutamic acid's carboxylic group and other amino acids. A hydrophobic cavity will form in the beta sheet of HB due to the short and hydrophobic structure of valine. For these reasons, the HB molecule will be less stable and insoluble in water. The insolubility is thought to be caused by fibril formation between the valine interacting with hydrophobic pocket residues of the adjacent HB molecule. This would in turn affect binding of oxygen to HB.
Answer:
No
Explanation:
The universality of the genetic code refers to how the codons for amino acids are always the same in almost all species. Amino acids have corresponding nitrogenous bases in pairs of three called a codon. so to have the same amino acids, all species would need the same nitrogenous bases.
