A model that represents a process occurring in a cell of a particular organism is shown in Figure 1.

Figure 1. Process occurring in a cell

Which of the following correctly explains the process shown in Figure 1?

Question

A model that represents a process occurring in a cell of a particular organism is shown in Figure 1.

Figure 1. Process occurring in a cell

Which of the following correctly explains the process shown in Figure 1?

BlackTom AI · Accepted Answer

The question asks us to identify which description best explains the process depicted in Figure 1, a cellular process diagram.

Option 1: 'DNA replication is occurring because replication is semi-conservative and the new strand is a copy of the template strand.' While DNA replication is semi-conservative, the clue in the figure is the production of an RNA strand from a DNA template, not DNA synthesis. Therefore this statement mislabels the process as replication rather than transcription.

Option 2: 'Translation is occurring because the two strands have separated and a new strand is being produced.' Translation involves mRNA being read by ribosomes to synthesize a polypeptide, not the separation of DNA strands and synthesis of a new DNA-like strand. The description here confuses transcriptional events with translation, making it incorrect.

Option 3: 'Initiation of transcription is occurring because a strand of RNA is being produced from a DNA template strand.' This matches the classic view of transcription: RNA polymerase binds a DNA template and synthesizes RNA, so seeing RNA being produced from DNA aligns with transcription initiation and elongation. The wording directly supports the depicted process in Figure 1.

Option 4: 'Alternative splicing of mRNA is occurring because the mRNA strand is being synthesized from only one strand of DNA.' Alternative splicing occurs after transcription, during RNA processing, and it does not explain RNA being synthesized from just one DNA strand. The description incorrectly attributes splicing as the initial synthesis event and ignores that transcription uses a DNA template to produce RNA first.

To distinguish accurately between these options, recall that transcription generates RNA using a DNA template, whereas replication, translation, and splicing involve other stages or processes. The scenario in the figure specifically indicates RNA synthesis from a DNA template, which directly corresponds to transcription initiation.

A model that represents a process occurring in a cell of a particular organism is shown in Figure 1. Figure 1. Process occurring in a cell Which of the following correctly explains the process shown in Figure 1?单项选择题

类似问题

True or false: The antisense strand and the transcribed RNA have identical sequences?

17. Which of the following enzymes is involved in transcription?

What is the process of transcription?

Eukaryotic transcription is different than bacterial transcription because eukaryotic transcription ________.

The enzyme responsible for the synthesis of mRNA is

A template strand of DNA reads 3' C T G A 5'. The RNA transcript of this strand would read

What is the process of transcription?

What is the mRNA complement to the DNA template 5’-CGCATGTAGCGA-3’?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单