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Multiple Choice
Which of the following statements is true about homologous chromosomes in multicellular organisms?
A
Homologous chromosomes are found only in prokaryotic cells.
B
Homologous chromosomes are identical copies of each other.
C
Homologous chromosomes carry the same genes but may have different alleles.
D
Homologous chromosomes are always inherited from the same parent.
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.
Recognize that homologous chromosomes are found in eukaryotic cells, not prokaryotic cells. Prokaryotic cells typically have a single circular chromosome and do not have homologous pairs.
Identify that homologous chromosomes are not identical copies. While they carry the same genes, the alleles for each gene may differ between the two chromosomes in the pair.
Consider the inheritance of homologous chromosomes: One chromosome of each homologous pair is inherited from the mother, and the other is inherited from the father, making them not from the same parent.
Conclude that the correct statement is: 'Homologous chromosomes carry the same genes but may have different alleles.' This reflects the true nature of homologous chromosomes in multicellular organisms.