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How can DNA mutations alter the structure of a protein?

Regions of an organism's genome that code for proteins are known as genes. The sequence of deoxyribonucleic acids (bases) in a gene directly translates to the sequence of amino acids in the protein it encode...
LB
Answered by Lewis B. • Biology tutor
3979 Views

Describe the pathway of electrical activity in the heart during the cardiac cycle.

The wave of excitation originates in the sinoatrial node in the right atrium. From there, it travels through the right and left atria, causing contraction of the atria (atrial systole). It is prevented from ...
JW
Answered by Josh W. • Biology tutor
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What happens in the light dependent reaction in photosynthesis?

Background Photosynthesis is the process where energy from light is used to break apart bonds in water . Hydrogen from water is then combined with CO2 to form glucose which is stored in the plant as a fuel f...
HW
Answered by Hannah W. • Biology tutor
2820 Views

Describe the polymerase chain reaction

The first step of PCR requires the target gene to be located using primers. Primers are short nucleotide sequences that are the complementary to either side of the target gene. The DNA sample containing the ...
TT
Answered by Tolu T. • Biology tutor
4481 Views

Explain how applying increasing pressure to a Pacinian corpuscle produces a larger change in membrane potential.

When pressure is applied to a Pacinian corpuscle the membrane is distorted, opening the stretch-mediated Na+ channels. This then allows Na+ ions to move in down their concentration gradient which increases t...
MC
Answered by Madeleine C. • Biology tutor
13232 Views