Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? A. The spirochaete genome is smaller than the nematode genome. B. Nematode DNA is circular. C. Spirochaete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins

Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? A. The spirochaete genome is smaller than the nematode genome. B. Nematode DNA is circular. C. Spirochaete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter1: Learning About Human Biology

Section: Chapter Questions

Problem 1CT: The diagram to the right shows how tiles can be put together in different ways. How does this...

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Spirochetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? A. The spirochaete genome is smaller than the nematode genome. B. Nematode DNA is circular. C. Spirochete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins. D. Spirochete DNA is linear.
In the book, Jurassic Park, by Michael Crichton, scientists are able to reconstruct dinosaurs by getting dinosaur DNA from a mosquito that had been well-preserved in amber since the era of dinosaurs. Do you believe this can actually happen in real life? Why?
Use the information and diagram to answer the following question. In humans, the pelvis and femur are involved in walking. Despite the fact modern whales live in water, they contain a pelvis and femur that are common in land dwelling animals. Based on your observation of the whale diagram and your understanding of evidence that supports evolution, what is TRUE about the pelvis and femur found in living whales today? A. They are newly developed structures found in modern whales due to mutations. B. They are examples of fossilized remains of ancient organisms. C. They are traits acquired by modern whales over time as they adapted to living in water. D. They are vestigial structures which are remnants of structures that served a function in the organism’s ancestors.
Can you answer all the parts of this question about this picture A: This organism is a member of which class? B: This organism is a member of which subclass? C: What is Structure B? D:What is the sex of this organism?
Astronomers have made great strides in sending probes out to other planets and moons in our solar system. If they were to find a living creature some place other than Earth, how could DNA analysis help them better understand the organism? Explain in 1–2 sentences
What factors could be responsible for the size differences among modern vertebrate genomes?
Which claim is BEST supported by the evidence provided? A. The calf and the salamander have the most similar DNA sequences. B. The chick and the tortoise have the most similar DNA sequences. C. The fish and the chick have the most similar DNA sequences. D. The pig and the tortoise have the most similar DNA sequences.
How does the amount of Neanderthal DNA in modern humans vary geographically? a. Individuals of European descent have the most Neanderthal DNA. b. The amount of Neanderthal DNA in modern humans is consistent across all populations. c. Individuals of African descent have the most Neanderthal DNA. d. Individuals of East Asian descent have the most Neanderthal DNA.
Which result from the Miller and Urey experiment provides evidence that the molecules of life could have spontaneously been produced in the ancient Earth environment? a After their experiment, they produced DNA from amino acids. b They showed how DNA can be produced from simple molecules that included water, oxygen, carbohydrates, and lipids. c Their experiment produced amino acids—the building blocks of life—from chemicals that existed in the environment of ancient Earth. d Miller and Urey's experiment provided evidence that showed that although oxygen was lacking in the environment of ancient Earth, it could be readily made from the decomposition of rocks and minerals.
According to the film, "Your inner reptile," which of the following did we inherit from our reptilian ancestors? A) A yolk sac which is present in our embryonic stage B) our skin C) remnants of yolk-producing in our genome D) All of the above
Based on their anatomical and behavioral differences, biologists previously placed humans and chimpanzees in different families, but now DNA sequence data suggest that they are closely related and should be placed in the same family. What are some advantages of using DNA sequences to decide how to classify organisms? What might be some disadvantages?
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?