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.

Why do you think water is so important to living things

Which of the following is not a defining characteristic of plants?

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.