解答つき看護学校入学試験のための生物ワークシート

Which bonds hold the two strands of a DNA double helix together?

1. AHydrogen bonds between the bases
2. BPeptide bonds between the sugars
3. CDisulfide bonds between the bases
4. DIonic bonds between the phosphates

What is the main job of the nucleolus?

1. AIt makes ribosomal RNA and builds ribosome parts
2. BIt digests worn-out parts of the cell
3. CIt releases energy from glucose for the nucleus
4. DIt stores water and salts for the nucleus

Which molecules, made by immune cells, bind to specific antigens?

1. APhospholipids
2. BAntibodies
3. CEnzymes
4. DHormones

What is a random sample?

1. AA group chosen because they are likely to support the hypothesis
2. BA group made only of people who volunteer to take part
3. CA group chosen by the researcher because they are easy to reach and willing
4. DA group where everyone in the population has an equal chance of being chosen

Which statement about Archaea is correct?

1. AThey are prokaryotes, and many live in extreme environments
2. BThey are a type of virus
3. CThey are eukaryotes that have a nucleus and membrane-bound organelles
4. DThey are multicellular plants

脱水縮合反応では何が起こるか。

1. A2 つの単量体が結合し、水分子が 1 つ放出される
2. B水分子が加わることで重合体が分解される
3. C細胞が乾燥して死ぬ
4. D浸透によって細胞から水が取り除かれる

病気のない両親から、その病気をもつ子が生まれた。単一の遺伝子と仮定すると、最も可能性の高い説明はどれか。

1. A形質は優性で、片方の親がホモ接合である
2. B形質は劣性で、両親とも保因者である
3. C形質は優性で、両親とも発症している
4. D子は、父親のY染色体からのみその形質を受け継いだ

Why is one new DNA strand made in short pieces (Okazaki fragments) during replication?

1. AThe lagging strand is made of RNA instead of DNA, so it must be built in pieces
2. BDNA polymerase works only 5' to 3', and the strands are antiparallel
3. CHelicase cuts that strand into pieces before copying
4. DOnly half of the DNA needs to be copied