Translation and protein synthesis is taking place at the ribosome in this illustration. where did the original instructions for this process originate?
a) rna in nucleus
b) dna in nucleus
c) trna in cytoplasm
d) mrna attached to ribosome

Ans.

Protein synthesis involves the process of transcription and translation. Transcription shows transfer of genetic information from the DNA present in the nucleus to RNA that gets attached with ribosome.

During translation, information present in mRNA is decoded to make a specific polypeptide chain or protein.

Thus, the correct answer is option B). 'DNA in nucleus.'

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation: