The correct answer is: They are released into the cytosol.
A a sequence consisting of 5-30 hydrophobic amino acids on the N-terminus, which is called signal peptide or signal sequence is responsible for directing the transport of the synthesized protein. Proteins that contain such sequence are destined for secretion form the cell (vesicular), for the plasma membrane, the lumen or membrane of either the (ER), Golgi or endosomes. So, when the protein lack the sequence, it is released in the cytosol.
Answer:
a.genetic code in the nucleus- DNA
b. main component in a ribosome- rRNA
c. translated with introns removed- mRNA
d. attached to amino acids -tRNA
e. translated including introns- pre-mRNA
Explanation:
a. DNA- is a nucleic acid molecule that acts as a genetic material in the organisms. In eukaryotes, the DNA molecule is present in the nucleus of the cell
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b. rRNA- is a molecule formed by the transcription but does not undergo translation and is directly involved in the formation of the ribosome structure which provides the site for the protein synthesis.
c. mRNA- is the RNA formed from the DNA by transcription which contains the message for the formation of the protein molecule. The mRNA is formed after the modification like splicing which removes the non-coding sequence.
d. tRNA-transfer RNA is involved in the translation of mRNA as it brings a specific amino acid to the peptide after it recognizes the codon.
e. pre-mRNA- is the mRNA molecule that has not undergone any modification and thus contains the non-coding sequence also.
<span>a. they counteract low venous pressure, and prevent backflow of blood away from the heart - Venous valves are structures that are made of elastic tissue. The valves are there to ensure that the blood keeps moving in one direction. The veins use these valves to work against the effects of gravity as well as low pressure with the veins.
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