Ques: Q: Which cells change the accessibility, transcription, or translation of a gene? Read this paragraph and choose the correct option from the provided answers: that extends the 3' end, so a primer is synthesized and extended. Thus, the ends are protected. 16 The cell controls which protein is expressed, and to what level that protein is expressed, in the cell. Prokaryotic cells alter the transcription rate to turn genes on or off. This method will increase or decrease protein levels in response to what is needed by the cell. Eukaryotic cells change the accessibility (epigenetic), transcription, or translation of a gene. This will alter the amount of RNA, and the lifespan of the RNA, to alter the amount of protein that exists. Eukaryotic cells also change the protein's translation to increase or decrease its overall levels. Eukaryotic organisms are much more complex and can manipulate protein levels by changing many stages in the process. Choices: - endogenous - prokaryotic - ribosomes - eukaryotic A:
Ans: eukaryotic

Ques: Q: What are the most energetic of all electromagnetic waves, which can be used to treat cancer? Read this paragraph and choose the correct option from the provided answers: Gamma rays are the most energetic of all electromagnetic waves. They can pass through most materials, including bones and teeth. Nonetheless, even these waves are useful. For example, they can be used to treat cancer. A medical device sends gamma rays the site of the cancer, and the rays destroy the cancerous cells. If you want to learn more about gamma rays, watch the video at the URL below. Choices: - ultraviolet - infrared - X-ray - gamma rays A:
Ans: gamma rays

Ques: Q: Most food chains and webs have a maximum of how many trophic levels? Read this paragraph and choose the correct option from the provided answers: A trophic level is a feeding position in a food chain or food web. Most food chains and webs have a maximum of four trophic levels. There is less energy and biomass at higher trophic levels. Choices: - 3 - 10 - 6 - 4 A:
Ans: 4

Ques: Q: What does the slope of a position-time graph represent? Read this paragraph and choose the correct option from the provided answers: The slope of a position-time graph represents velocity. The steeper the slope is, the faster the motion is changing. Choices: - trajectory - direction - acceleration - velocity A:
Ans:
velocity