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Multiple Choice
Which of the following statements is true about homologous chromosomes in a pair?
A
They are always inherited from the same parent.
B
They are similar in size and shape and carry the same genes.
C
They have identical alleles for all genes.
D
They are connected by a centromere.
Verified step by step guidance
1
Understand the concept of homologous chromosomes: Homologous chromosomes are pairs of chromosomes in a diploid organism that have the same structure and carry the same genes, but may have different alleles.
Consider the inheritance of homologous chromosomes: One chromosome of each homologous pair is inherited from the mother and the other from the father, so they are not inherited from the same parent.
Examine the genetic content: Homologous chromosomes carry the same genes at the same loci, but they may have different alleles for those genes, meaning they are not identical in terms of alleles.
Analyze the physical connection: Homologous chromosomes are not connected by a centromere; each chromosome has its own centromere.
Conclude with the correct statement: Homologous chromosomes are similar in size and shape and carry the same genes, which is the correct statement about them.