問 1
1 点A specific segment of DNA in a eukaryotic cell contains several introns and exons. Which of the following statements correctly describes the arrangement and function of these regions?
AQA A Level · Biology 7402
DNA, genes and chromosomes：練習問題
その場で採点される選択問題 5 問と、解説つきの記述問題 3 問。すべて「DNA, genes and chromosomes」からの出題です。
8 問22 点無料・登録不要
問 2
1 点The structure of DNA differs significantly between different locations within a eukaryotic cell. Which of the following correctly describes the DNA found in the mitochondria of a human cell?
問 3
1 点Compare the DNA found in prokaryotic cells with the nuclear DNA of eukaryotic cells. Which of the following is a correct distinction?
問 4
1 点Which of the following statements correctly distinguishes between the DNA found in the nucleus of a eukaryotic cell and the DNA found in a prokaryotic cell?
問 5
1 点Which of the following best describes the difference between DNA in a prokaryotic cell and the nuclear DNA in a eukaryotic cell?
問 6
5 点In eukaryotes, much of the nuclear DNA consists of non-coding sequences. Distinguish between introns and non-coding multiple repeats found between genes.
まず自分で答えを書いてから、解説と照らし合わせましょう。
問 7
6 点In eukaryotic DNA, distinguish between the structural arrangement of exons and introns within a gene and explain why only one of these is represented in the mature proteome.
まず自分で答えを書いてから、解説と照らし合わせましょう。
問 8
6 点DNA molecules vary in structure depending on the type of cell in which they are found.
a) Contrast the structure of DNA in a prokaryotic cell with the DNA in the nucleus of a eukaryotic cell. (3 points)
b) Mitochondria also contain DNA. Describe how the DNA in a mitochondrion is similar to the DNA found in prokaryotic cells. (2 points)
c) Define the term locus in the context of a chromosome. (1 point)
まず自分で答えを書いてから、解説と照らし合わせましょう。
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