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Multiple Choice
How similar are homologous chromosomes to each other in terms of genetic content?
A
They are similar only in size and shape, not in genetic content.
B
They have the same genes but may have different alleles.
C
They have completely different genes.
D
They are identical in genetic content.
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 gene sequence, but they may contain different alleles.
Recognize that homologous chromosomes are inherited from each parent: One chromosome of the pair comes from the mother and the other from the father, which is why they can have different alleles for the same gene.
Identify the genetic content: Homologous chromosomes have the same genes located at the same loci (positions) on the chromosome, but the alleles (variations of a gene) can differ between the two chromosomes.
Clarify the difference between genes and alleles: Genes are segments of DNA that code for proteins, while alleles are different versions of a gene that can result in variations in the trait expressed.
Conclude that homologous chromosomes are similar in genetic content in terms of having the same genes, but they may differ in the alleles they carry, which can lead to genetic diversity.