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They are a group of specialised cells that respond to different changes in the environment called stimuli. Different types of receptors have different stimuli they react to such as light, sound, chemi...
Transcription is the first stage of protein synthesis, it occurs in the NUCLEUS.
The main purpose is to make an mRNA (messenger RNA) copy of a gene - it is like a photocopy.
There ar...
Mitosis is the process by which cells divide and replicate themselves. It is how organisms (like humans) grow. During mitosis one cell (the parent cellBFAnswered by Bethany F. • Biology tutor16726 Views
Veins take blood towards the heart from the rest of the body. This is usualy deoxygenated blood because the oxygen has been taken up by respi...
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