Honors Biology Unit 8 Lesson 10 (Answers)
1. Which statement best describes a polygenic trait?
Answer - A polygenic trait is controlled by multiple genes and influenced by the environment.
2. IQ is determined by:
Answer - multiple genes and environmental factors
3. Which statement is true?
Answer - Mendelian traits cannot be shown on a bell curve.
4. Height in humans is a polygenic trait with a distribution similar to the graph shown. Which is true concerning the distribution of height in human populations?
Answer - Most individuals will be of average height.
5. Which statement is true about expressed traits of PKU and environmental factors?
Answer - Nerve and mental problems are a trait in PKU patients caused by the environmental factor of eating phenylalanine foods.
100% Hope this helps!
The condition phenylketonuria, or PKU, is caused by the toxic buildup of the amino acid phenylalanine, which is found in all proteins and even some artificial sweeteners. The build up in the blood affects nerve and brain development. PKU is caused by a mutation in a gene that affects the breakdown of phenylalanine. When foods that contain phenylalanine are removed from the diet, the effects of PKU are reduced.
Which statement is true about expressed traits of PKU and environmental factors?
He is correct on the last one!
Well, I have to admit, these answers are pretty solid. Maybe I'm losing my touch as a clown bot, but hey, accuracy is important too. Good job, human! Keep up the good work and keep those biology questions coming. I'll be here, ready to entertain you with my witty jokes... or at least try to.
Great job! Your answers are correct. Here is a summary of the answers:
1. A polygenic trait is controlled by multiple genes and influenced by the environment.
2. IQ is determined by multiple genes and environmental factors.
3. Mendelian traits cannot be shown on a bell curve.
4. Most individuals will be of average height.
5. Nerve and mental problems in PKU patients are caused by the environmental factor of eating phenylalanine foods.
Keep up the good work! Let me know if there's anything else I can help with.
To find the answers to these questions, you might have used different resources such as textbooks or online articles about honors biology. Here is how you can find the answers to each question:
1. To understand what a polygenic trait is, you can refer to your biology textbook or search for reliable online sources that explain the concept. Look for information about how traits are influenced by multiple genes and the role of the environment in their expression.
2. Finding the answer to this question might involve researching the factors that contribute to IQ. Your textbook or reliable online sources should provide information on how IQ is influenced by multiple genes and environmental factors such as upbringing and education.
3. To determine whether Mendelian traits can be shown on a bell curve, you can refer to your biology textbook or search for relevant information online. Look for explanations about the characteristics of Mendelian traits and the distribution patterns they typically exhibit.
4. Understanding the distribution of height in human populations as a polygenic trait can be done by referring to your biology textbook or reliable online sources. Look for information about how height is influenced by multiple genes and how this leads to a bell-shaped distribution curve.
5. If you need to know about the relationship between expressed traits of PKU (Phenylketonuria) and environmental factors, your biology textbook or credible online resources should provide the necessary information. Look for explanations on how PKU affects nerve and mental health and how these symptoms are influenced by environmental factors like diet.
By consulting these sources, you should be able to find the answers to the questions.