Answer: B) Histidine- glycine - glycine - tyrosine - glycine.
Explanation: Amino acids are coded for by three nucleotide sequence found in an mRNA molecule. These three nucleotide sequences are known as codons. Every amino acid is coded for by at least one codon. Some amino acids are coded for by more than one codon. The phenomenon by which more than one codon codes for a particular amino acid is known as degeneracy. The codons are said to be degenerate.
From the information provided, CAU codes for histidine, GGU, GGC and GGG code for glycine while UAC codes for tyrosine.
The second graph represents a object moving at the slowest speed.
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Answer:
a. heart development.
Explanation:
As the third week of fetal development starts, the process of formation of blood vessels begins. Also, the splanchnic mesoderm in the head end of the embryo forms heart on days 18 and 19. Since it develops heart, this part of the mesodermal cells is called the cardiogenic area. The underlying endoderm sends the induction signals to these mesodermal cells to form a pair of endocardial tubes that gradually develop into a single primitive heart tube.
This primitive heart begins to beat by the end of the third week of development. Therefore, any drug that affects fetal development during the first 20 days of the pregnancy might affect the development of the heart.