Biology
During the metaphase and anaphse stages of cell division,each chromosome comprises of two unseparated replicas known as the

Plastids
Chiasmata
Chromatids
Tetrads

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Biology
Which of the following is not true of colour blindness?

For some people, it might be difficult to recognize colours of traffic lights and signs
A colour blind person cannot see any colours
Red-green colour blindness is the most common type of colour blindness
Colour blind people learn to rely on shapes, patterns, and positions of signs and signals

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