Directions: Read the online textbook, and then answer the questions
below;
Review Questions:
1. Define heredity:
2. Define genes:
3. The position of a gene on a chromosome is called its __________. In sexually
reproducing organisms, each individual has two copies of the same gene, as
there are two versions of the same chromosome (_____________________
chromosomes). One copy comes from each parent. The gene for a
characteristic may have different _______________, but the different versions
are always at the same ____________. The different versions are called
________________. For example, in pea plants, there is a _________-flower
allele (P) and a __________-flower allele (p). Different ______________account
for much of the variation in the characteristics of organisms.
4. This diagram shows how the
concepts of chromosome, gene, locus,
and allele are related.
What is the difference between a gene
and a locus?
What is the difference between a gene
and an allele?
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