Answer:
Sickle cell hemoglobin occurs in the beta chain of hemoglobin due to point mutation in the sixth codon which changes from glutamic acid to valine which is hydrophobic that causes the change in the size of the RBC in a crescent shape.
The protein or amino acid chain of this condition is as follows:
Protein with Sickle Mutation: VAL HIS LEU THR PRO VAL GLU
which is translated from mRNA sequence
mRNA with Sickle Mutation: G U G C A C C U G A C U C C U G U G G A G
mRNA sequence is the complementary sequence or anticodons of the mRNA sequence RNA:
tRNA with Sickle Mutation: C A C G U G G A C U G A G G A C A C C U C
mRNA sequence is transcribed from the transcription strand of DNA sequence:
DNA with Sickle Mutation: C A C G T G G A C T G A G G A C A C C T C
<u>Answer:</u>
<em>Whistling seen as a bad practice by sailors because it challenges the sea is an example of pseudoscience.
</em>
<u>Explanation:</u>
Pseudoscience literally means false science. It claims to be science but it is not scientific at all. It completely fails in a <em>scientific scrutiny </em>and it is not open to evaluation by other experts.
They are just beliefs and practised claimed to be factual even without any proper method used in <em>developing the hypotheses.
</em>
False<em> pseudo scientific claims</em> can be harmful at times. An example is the propaganda against vaccination.
Answer:
After 3 half-lives (1500 years), 125 g of the parent isotope will remain
Explanation:
Answer;
-COOH
Explanation;
The carboxyl group includes both a keto oxygen and a hydroxyl group; Carboxyl groups are weak acids, dissociating partially to release hydrogen ions. The carboxyl group (symbolized as COOH) has both a carbonyl and a hydroxyl group attached to the same carbon atom, resulting in new properties.
The carboxyl functional group is an acidic functional group frequently found in biological molecules. It is found in amino acids, proteins. fatty acids, acetic acids and other organic acids.
