Question

Explain the type of chromosomes

Answer 1

Metacentric – centromere is in middle, meaning p and q arms are of comparable length (e.g. chromosomes 1, 3, 16, 19, 20)

Submetacentric – centromere off-centre, leading to shorter p arm relative to q arm (e.g. chromosomes 2, 4 - 12, 17, 18, X)

Acrocentric – centromere severely off-set from centre, leading to much shorter p arm (e.g. chromosomes 13 - 15, 21, 22, Y)

Telocentric – centromere found at end of chromosome, meaning no p arm exists (chromosome not found in humans)

Answer 2

Chromosomes are basic building blocks of life that carry all of the information used to help a cell grow, thrive and reproduce. Chromosomes are made up of DNA. There are four types of chromosomes- metacentric, sub-metacentric, acrocentric and telocentric chromosomes.

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