Mrna : ribosome : : select one: a. endoplasmic reticulum : golgi aparatus b. nucelus : cytoplasm c. signal protien : cell membrane d. microtubule : microfiliment

B

Explanation:

mRNA is also called messenger RNA. It is produced in the nucleus during transcription by using DNA template. The nucleus houses the genetic material (DNA) of an eukaryotic cell, hence, it's just natural that the DNA be transcribed there. The mRNA, also called RNA transcript acts as a carrier, that carries the encoded information in it out of the nucleus into the cytoplasm, where protein synthesis takes place.

Ribosome is a complex containing ribosomal RNA and other enzymes found in the cytoplasm of living cells, which organises the process of translation and catalyze the reaction that joins amino acids to make a protein chain. They are either found floating freely in the cytoplasm or attached to the endoplasmic reticulum to form the Rough Endoplasmic reticulum.

Hence the reason for the answer, mRNA is produced in the nucleus, while ribosomes are found in the cytoplasm

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave