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A Level

Describe the role of a ribosome in the production of a polypeptide.

The ribosome acts as a translator, by binding to an mRNA and 'reading' the codon codeA codon is 3 bases on an mRNA, and each codon encodes an amino acidThe ribosome brings the tRNAs with the correct antic...

EH
Answered by Elizabeth H. Biology tutor
2673 Views

Explain how pillow lavas are formed and describe how they can be used as a way up structure

Pillow lavas are formed when lava is emitted from the earths crust under water. The outer layer cools rapidly and hardens while the inside remains soft. A round pillow like ball of malleable rock is forme...

JM
Answered by James M. Geology tutor
2536 Views

“The adulation of Stalin received was genuine and his god-like status was down to his formidable leadership.” Assess the validity of this view [25 marks]

It could be argued that Stalin’s formidable leadership during World War 2 contributed significantly to the adulation of Stalin. Through the focus of armament in the second (1933-1937) and third (1938-1942...

CE
Answered by Callum E. History tutor
2664 Views

How is an action potential generated?

An action potential is the propagation of the reversal of charge across a membrane voltage gated Na+ ion channels sense a change in membrane potential causing them to open Na+ moves down its concentration...

EH
Answered by Emma H. Biology tutor
2236 Views

Discuss how this piece (Brahms Piano Quintet in F minor mvt. III 'Scherzo') is characteristic of 19th century chamber music.

Brahms' melodic writing is highly virtuosic; large ranges are used for all instruments with double/multiple stopping and pizzicato in the stringed instruments, and occasional lyrical, legato melodies pass...

EB
Answered by Emily B. Music tutor
2984 Views

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