During the process of protein synthesis, each trna carries one
a) fatty acid.
b) amino acid.
c) nucleotide.
d) nucleic acid.

The correct answer is -

B) amino acid.

Explanation:

Protein synthesis is a two step process, which includes transcription (conversion of DNA to mRNA) and translation (mRNA to protien).

During the process of translation, tRNA (transfer RNA) molecule carries specific amino acid at the ribosome site according to the codon (a sequence of three nucleotides that code for particular amino acid) sequence present in the mRNA (messenger RNA) .

In this way, a chain of amino acid is assembled, giving rise to particular protien.

Thus, option B) is the right answer.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation:

your answer is going to be physical weathering