How do mutagens affect chromosomes? athey change the chemical composition of dna, which can affect the structure or number of chromosomes. they attack the inner part of the chromosome, changing the sequence of dna in the centromere of the chromosome. they alter the size of the chromosome, which affects the way a chromosome passes genetic traits from parents to offspring.

They change the chemical composition of DNA, which can affect the structure or number of chromosomes.

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

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