A mammal is any animal that has hair,three middle ear bones,and mammary glands.Mammals give live birth as well.
Answer:
5. polycyclic
Explanation:
Polycyclic disease cycle produce secondary inoculum which results in the infection on same crop or other crops during vegetation seasons. See attachment to observe the cycle how it happens.
Answer: Valine
Explanation:
hemoglobin A (normal) is HbA, while hemoglobin S (present in people with sickle cell anemia) is HbS
A sequence of 146 amino acids is present in the Hemoglobin.
The first 6 amino acids in HbA are: valine, histidine, leucine, threonine, proline, and glutamic acid.
The first six amino acids in HbS is:
valine, histidine, leucine, threonine, proline, and VALINE
In Hbs, the 6th amino acid (Glutamic acid) has already been mutated to Valine, a nonpolar, branched amino acid.
Based on the 20 amino acids found in proteins, there are 6840 possible variations in a polymer composed of just three amino acids.
<h3>What are amino acids?</h3>
Amino acids are the molecules from which protein molecules are made from.
There are 20 common amino acids from which protein molecules are built up from.
The amino acids are joined one to another in the protein by peptide bonds.
In a polymer composed of three amino acids, the possible variations are calculated by permutation.
The possible variations are 20 permutation 3.
nPr = n!/(n - r)!
where n = 20 r = 3
nPr = 20!/(20 - 3)!
nPr = 6840
Therefore, there are 6840 possible variations in a polymer composed of just three amino acids.
Learn more about amino acids at: brainly.com/question/1302816
