Crossing-Over Between Sister Chromatids Does Not Result in Recombination of Genetic

question 27

Multiple Choice

Crossing-over between sister chromatids does not result in recombination of genetic material, while crossing-over between nonsister chromatids does because

• A) sister chromatids have the same alleles, while nonsister chromatids have different ones.
• B) sister chromatids have the same genes, while nonsister chromatids have different ones.
• C) sister chromatids have the same alleles but different genes, while nonsister chromatids have different alleles but the same genes.
• D) nonsister chromatids have the same alleles, while sister chromatids have different ones.
• E) nonsister chromatids have the same genes, while sister chromatids have different ones.

Understand epigenetic modifications such as methylation and acetylation of histones and their impact on gene expression.

Explain the role of transcription factors, enhancers, silencers, and activators in gene expression.

Understand the role of RNA processing, transport, and microRNA in gene expression control.

Comprehend the functional relevance of gene expression control in developmental processes and lactose metabolism.

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