Question

11 multiple choice 1 point homologous chromosomes: are identical copies of one chromosome have the same genes but different alleles, ie two copies of chromosome 1 are joined by a centromere are only in prokaryotes

Explanation:

Homologous chromosomes are pairs of chromosomes (one from each parent). They have the same genes at the same loci. However, the alleles (versions of the genes) can differ. For example, one may have a dominant allele for eye color and the other a recessive allele. They are not identical copies (so A is wrong). Sister chromatids are joined by a centromere (so C is wrong). Prokaryotes do not have homologous chromosomes as they usually have a single circular chromosome (so D is wrong).

Answer:

B. Have the same genes but different alleles, i.e two copies of chromosome 1