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Genetics and Molecular Biology Quiz

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What is the major characteristic of prophase I of meiosis?

Condensation of chromosomes and crossing over (correct)

Separation of sister chromatids

Formation of spindle fibers

Alignment of homologous chromosomes at the metaphase plate

What is the role of DNA ligase in DNA replication?

Initiating RNA primer synthesis

Unwinding the DNA double helix

Joining Okazaki fragments on the lagging strand (correct)

Proofreading and repairing DNA mismatches

What is the function of a promoter in transcription?

Provides the start codon for translation

Adds a protective cap to the 5' end of mRNA

Initiates the binding of RNA polymerase to the DNA template (correct)

Removes introns from pre-mRNA

What distinguishes polygenic inheritance from Mendelian inheritance?

<p>Polygenic inheritance involves multiple genes influencing a single trait, while Mendelian inheritance involves only one gene.</p> Signup and view all the answers

What is the primary function of tRNA during translation?

<p>Carrying amino acids to the ribosome and matching them to the codons in mRNA</p> Signup and view all the answers

Genetics and Molecular Biology Quiz

Choose a study mode

Podcast

Questions and Answers

What is the major characteristic of prophase I of meiosis?

What is the role of DNA ligase in DNA replication?

What is the function of a promoter in transcription?

What distinguishes polygenic inheritance from Mendelian inheritance?

What is the primary function of tRNA during translation?

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