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Multiple Choice
Which of the following statements is true of homologous chromosomes?
A
They are formed during the process of mitosis.
B
They are identical copies of each other.
C
They carry the same genes but may have different alleles.
D
They are found only in prokaryotic cells.
Verified step by step guidance
1
Understand the definition of homologous chromosomes: Homologous chromosomes are pairs of chromosomes in a diploid organism that have the same structure and carry the same genes at the same loci, but they may have different alleles.
Analyze the statement 'They are formed during the process of mitosis': Homologous chromosomes are not formed during mitosis; they are inherited from each parent during sexual reproduction and are present before mitosis begins.
Evaluate the statement 'They are identical copies of each other': Homologous chromosomes are similar but not identical. They carry the same genes but can have different alleles, which are variations of a gene.
Consider the statement 'They carry the same genes but may have different alleles': This is true because homologous chromosomes have the same gene sequence but can have different versions (alleles) of those genes.
Examine the statement 'They are found only in prokaryotic cells': This is false because prokaryotic cells do not have homologous chromosomes; they typically have a single circular chromosome. Homologous chromosomes are found in eukaryotic cells.