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Explain how a change in a sequence of DNA bases could result in a non-functional enzyme

A mutation in the DNA sequence may lead to a different amino acid sequence may lead to a different amino acid being produced in the primary protein structure of the enzyme during translation. This may cause ...
YA
Answered by Yusuf A. • Biology tutor
22477 Views

Describe how a Pacinian corpuscle produces a generator potential when stimulated.

The increased pressure caused by the stimulus opens pressure gated sodium ion channels allowing Na+ ions to diffuse (down a concentration gradient) into the axon. This sudden influx of Na+ ions causes a loca...
YA
Answered by Yusuf A. • Biology tutor
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Quels peuvent être les avantages de vivre à la campagne plutôt qu'en ville?

Une vie rurale est très différente d'une vie urbaine mais comporte tout de même un grand nombre d'avantages. En effet, vivre à la campagne permet de mener une vie plus calme et apaisante étant donné qu'il y ...
JL
Answered by Jack L. • French tutor
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Outline the main differences between an artery and a vein? (6 marks)

An artery carries blood away from the heart. The blood is oxygenated with the exception of the pulmonary and umbilical artery. The vessel must cope with high pressure demands and therefore has thick, elastic...
KB
Answered by Katy B. • Biology tutor
3228 Views

Given the parametric equations x = lnt+t and y = sint calculate d^2y/dx^2

First we can write d 2 y/dx 2 as (d/dx)(dy/dx). Now we need to find dy/dx. This can be further written as (dy/dt)(dt/dx). These derivatives can be obtained from the given parametric equations: dx/dt = 1/t + ...
AR
Answered by Agnieszka R. • Maths tutor
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