Human Biology Custom Edition
11th Edition
ISBN: 9781337631532
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 1, Problem 1CT
The diagram to the right shows how tiles can be put together in different ways. How does this example relate to the role of DNA as the universal genetic material in organisms?
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Models of real-world phenomena can reveal important links between structure and function in biology. Describe how the structure of DNA revealed by theWatson and Crick model suggests how it functions in living things.
Why do you think all organisms use nucleic acids for encoding genetic information? Why not use proteins or carbohydrates? What advantages might DNA have as the source of genetic information?
Does all DNA have a function? Is all of the DNA in
your genome, for example, part of a gene? Explain
(be specific).
Chapter 1 Solutions
Human Biology Custom Edition
Ch. 1 - You are a living organism. Which characteristics...Ch. 1 - Why is the concept of homeostasis meaningful in...Ch. 1 - What is meant by biological evolution?Ch. 1 - Prob. 4RQCh. 1 - Define and distinguish between: a. a hypothesis...Ch. 1 - Instructions in __________ govern how organisms...Ch. 1 - A _______ is the smallest unit that can live and...Ch. 1 - _______ is a state in which an organisms internal...Ch. 1 - Humans are _________ (animals with backbones);...Ch. 1 - Prob. 5SQ
Ch. 1 - A scientific approach to explaining some aspect of...Ch. 1 - Prob. 7SQCh. 1 - A related set of hypotheses that collectively...Ch. 1 - Which of the following is not a feature of a...Ch. 1 - The diagram below depicts the concept of _______....Ch. 1 - The diagram to the right shows how tiles can be...Ch. 1 - Court witnesses are asked to tell the truth, the...Ch. 1 - Design a test (or series of tests) to support or...Ch. 1 - In a popular magazine article the author reports...Ch. 1 - Researchers studied 393 patients in a hospitals...
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- What percentage of the DNA in the genome actually corresponds to genes? How much is actually protein-coding exons? What makes up the rest?arrow_forwardIn the DNA of what kind of cell must a mutation occur for the genetic change to be passed down to future generations?arrow_forwardIn proteins, a peptide read from the N terminal to the C terminal. Is there a kind of direction in DNA/RNA as well? Briefly explain. What does Chargaff’s rules mean? Who proposed DNA was a double helix? In what decade? If one DNA single strand has the sequence 5’-AATGCAA-3’, what is the sequence of its complementary strand? When DNA replicates, how is it able to “unwind” its double helix?arrow_forward
- Which of the following statements represent the flow of genetic information in cells? Group of answer choices DNA to RNA to protein protein to DNA to RNA RNA to DNA to protein DNA to protein to RNAarrow_forwardDo cells make accurate copies of DNA? Explain with the help of a diagramarrow_forwardConsider how histone proteins bind to DNA and then explain why a salt solution with a high concentration can remove them from DNA (as shown in Figure 12.21b).arrow_forward
- Explain how DNA serves as the genetic material of an organism and how it can be used to create RNA and proteins. Outline the flow of information from DNA to protein (the central dogma of biology).arrow_forwardWhich statement best describes a genomic library? an initial amount of DNA can be multiplied into millions of copies a large collection of bacteria that are engineered to contain fragments of an organism's complete genome a collection of DNA sequences are arranged on a microscopic grid many small pieces of circular, double-stranded DNA that replicate independently of chromosomes contained in a nucleusarrow_forwardThe Selfish Gene is a radical theory that argues that all living creatures are essentially vehicles for their genes- hence, we all are a “survival machine" for our genes. In the light of what you have learned about the molecular structure and function of the gene, is this perspective still relevant? Cite specific biological phenomena to prove your point. References:arrow_forward
- What is DNA and RNA? How are DNA and RNA different? Do you think there are any organisms on the planet that do not have DNA? If so, which ones?.arrow_forwardthe difference between the model of the white-eyedfly’s DNA sequence and the model of the red-eyed fly’s DNA sequence?arrow_forwardDetermine what amino acid will be formed from the given DNA strand below: 3’ T A C A T G C C G A A T 5’ Note: Prepare the partner strand of this DNA. Discuss how will replication happen by mentioning the enzyme needed then transcribe to form mRNA. Discuss what will happen to mRNA, then translate, mentioning the anticodon to be used. Look at the genetic code to know what amino acid will become part of the polypeptide chain. 1. Partner DNA strand 2. the mRNA strand 3. the tRNA 4. the formed amino acidsarrow_forward
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