Which of the following describes an organism that has two different alleles for a trait?

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

answer; ///(b) it is composed of four protein chains and four heme groups;

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1) a

2)c

3)a

4)c

5)b

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