On a strand of the mrna the bases are read in groups of three. what is the correct term for a group of three bases on the strand of mrna?

The correct answer would be codon.

Codon refers to the sequence of three consecutive nucleotides (DNA or RNA) which codes for a specific amino acid.

For example, AUG codes for methionine, CCA codes for proline, GUU codes for valine, UGA is a stop codon et cetera.

The nucleotide sequence of the DNA is transcribed into the codon sequence of the mRNA.

The codon sequence of the mRNA codes for the amino acid sequence of the polypeptide chain.

The codon is deciphered with the help of the anti-codon site of the tRNA.

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.