After scientists exposed cultures of Penicillium to agents X, Y, and Z, they examined the type and amount of penicillin produced by the altered fungi to find the one that is most effective. Agents X, Y, and Z were probably __________ .

a. recombinant cells
b. competent
c. mutagens
d. phages

검증된 단계별 안내

Understand the context: Scientists exposed cultures of Penicillium to agents X, Y, and Z to observe changes in penicillin production. This implies the agents caused some alteration in the fungi.

Recall definitions: Recombinant cells are cells that have undergone genetic recombination, competent cells are able to take up foreign DNA, mutagens are agents that cause mutations or changes in the genetic material, and phages are viruses that infect bacteria.

Analyze the goal: Since the scientists are looking for changes in the type and amount of penicillin produced, the agents likely caused genetic changes in the fungi to alter penicillin synthesis.

Match the agents to their function: Agents that cause genetic changes to create variations in organisms are called mutagens.

Conclude that agents X, Y, and Z are most likely mutagens because they induce mutations that can affect penicillin production.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Mutagens

Mutagens are physical or chemical agents that cause changes or mutations in the DNA sequence of organisms. In microbiology, mutagens are used to induce genetic variations, which can lead to altered traits such as increased antibiotic production. Identifying mutagens helps understand how genetic changes affect microbial functions.

Penicillin Production in Penicillium

Penicillium is a genus of fungi known for producing penicillin, a natural antibiotic. The amount and type of penicillin produced can vary based on genetic and environmental factors. Studying how different agents affect penicillin synthesis is crucial for improving antibiotic yields.

Recombinant Cells vs. Competent Cells vs. Phages

Recombinant cells contain foreign DNA introduced through genetic engineering, competent cells are capable of taking up DNA from their environment, and phages are viruses that infect bacteria. These terms differ from mutagens, which directly cause mutations rather than facilitating DNA transfer or infection.

After scientists exposed cultures of Penicillium to agents X, Y, and Z, they examined the type and amount of penicillin produced by the altered fungi to find the one that is most effective. Agents X, Y, and Z were probably __________ .a. recombinant cellsb. competentc. mutagensd. phages