Biology Now (Core Edition)
1st Edition
ISBN: 9780393938340
Author: Anne Houtman, Megan Scudellari, Cindy Malone, Anu Singh-Cundy
Publisher: W. W. Norton & Company
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Chapter 23, Problem 3TQ
Summary Introduction
The plants need carbon dioxide, water and mineral nutrients to grow. There are several mineral nutrients that come from the soil are dissolved in the water. It is absorbed by the roots of plants. The mineral nutrients are divided into two groups includes micronutrients and macronutrients. The micronutrients are chloride, boron, molybdenum, iron, copper, manganese, copper and zinc. The macronutrients are nitrogen, calcium, potassium, magnesium, sulfur and phosphorus.
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Transcription and Translation
1. What is the main function of transcription and translation? (2
marks)
2. How is transcription different in eukaryotic and prokaryotic
cells? (2 marks)
3. Explain the difference between pre-mRNA and post-transcript
mRNA. (2 marks)
4. What is the function of the following: (4 marks)
i. the cap
ii. spliceosome
iii. Poly A tail
iv. termination sequence
5. What are advantages to the wobble feature of the genetic
code? (2 marks)
6. Explain the difference between the: (3 marks)
i. A site & P site
ii. codon & anticodon
iii. gene expression and gene regulation
7. Explain how the stop codon allows for termination. (1 mark)
8. In your own words, summarize the process of translation. (2
marks)
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