Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 20, Problem 1P
A single human cell encloses about 1.5 m of DNA, containing 4.5 billion base pairs. What is the spacing between these base pairs in nanometers? That is, how far apart are the rungs on the DNA ladder?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A population grows exponentially at about 2%
per year. Assume that the population starts with
15 individuals. How many individuals will it have
after 10 years? After 20 years? How long will it
take for the population to double?
Answer properly please
What is the size in μm of a cell that is 145mm wide in my photo. The scale bar in the photo is 1.7cm long and represents 12 μm.
The population of India can be modeled by the function
P(t) = 1462(1 +0.0177)
where P(t) measures the population in millions andt represents the number of years since 2000.
1. Using this model, what was the population of India in 2009?
2. Predict the population of India in 2019.
3. If this growth rate continues, in what year will the population of India reach 2 billion people?
Hint:
Chapter 20 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 20 - If life is based on information, what is that...Ch. 20 - How does the DNA molecule produce a copy of...Ch. 20 - What would happen to a life-form if the genetic...Ch. 20 - What would happen to a life-form if the...Ch. 20 - Give an example of natural selection acting on new...Ch. 20 - Prob. 6RQCh. 20 - Why do scientists generality think that liquid...Ch. 20 - Prob. 8RQCh. 20 - What is the significance of the Miller-Urey...Ch. 20 - Prob. 10RQ
Ch. 20 - Prob. 11RQCh. 20 - Why is it reasonable to suspect that travel...Ch. 20 - How does the stability of technological...Ch. 20 - Prob. 14RQCh. 20 - Prob. 15RQCh. 20 - Prob. 16RQCh. 20 - How Do We know? Why are scientists confident that...Ch. 20 - Do you expect that hypothetical alien recipients...Ch. 20 - Prob. 2DQCh. 20 - Prob. 3DQCh. 20 - A single human cell encloses about 1.5 m of DNA,...Ch. 20 - If you represent Earth’s history by a line 1 m...Ch. 20 - Prob. 3PCh. 20 - If a star must remain on the main sequence for at...Ch. 20 - Prob. 5PCh. 20 - Prob. 6PCh. 20 - Prob. 7PCh. 20 - Calculate the numb of communicative civilizations...Ch. 20 - The star cluster shown in the image in Figure UN...Ch. 20 - Prob. 2LTL
Additional Science Textbook Solutions
Find more solutions based on key concepts
An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal ...
Physics for Scientists and Engineers, Technology Update (No access codes included)
The Rankine temperature scale (abbreviatedR) uses the same size degrees as Fahrenheit, but measured up from abs...
An Introduction to Thermal Physics
1. Rub your hands together vigorously. What happens? Discuss the energy transfers and transformations that take...
College Physics: A Strategic Approach (4th Edition)
Choose the best answer to each of the following. Explain your reasoning. If Earth were twice as far as it actua...
The Cosmic Perspective Fundamentals (2nd Edition)
2. Which of the following is the best example of the use of a referent? _
a. A red bicycle
b. Big as a dump tru...
Physical Science
Monochromatic light from a distant point source is incident on two slits. The resulting graph of intensity vers...
Tutorials in Introductory Physics
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- There are five microns per cell and a total of100,000 cells in a spore. Given thisinformation, estimate the weight of a spore.Explain how you got the answer. Finalanswer should be in Newtons. No handwritten.arrow_forwardThe doctor finally figures out wha is wrong with you and prescribes a medicine that will return you to full health. The order is for 25 mg of the medicine. The nurse walks in with a liquid and you ask to see the bottle. The bottle says 100 mg of medicine per 15 ml of liquid. How many millilitiers should she give you? Would she need to bring that to you in a dropper, a little cup, a glass or a large bottle?arrow_forwardI need to know the number of years! There is only one part to this question. The pictures show the "Figure" and "Bar charts" tabs and the "Graph" tab says this: A curve showing the percentage of radioactive atoms remaining in a mineral sample is graphed on a coordinate plane. The horizontal axis, labeled "Age in half-lives," ranges from 0 to 6. The vertical axis, labeled "Percentage remaining," ranges from 0 to 100. The curve enters the viewing field with a negative slope at (0, 100). The magnitude of the negative slope is progressively reduced such that it is nearly horizontal as it exits the viewing field at (6, 0.02). Thank you!!arrow_forward
- Several hundred years in the future, humans discover an alien world named Noveria. On Noveria, time is measured in pjokas, which is equivalent to 5.93 seconds, There are 7 pjok in every pjokas (much like there are 60 seconds in a minute). If a Noverian alien watches 40 mok of cat videos, how many minutes is this?arrow_forwardA cell biologist measures the width of a cell. The width is 72μm . What is the width in meters? Write your answer in scientific notation.arrow_forwardAn isotope of a radioactive element has half-life equal to 9 thousand years. Imagine a sample that is so old that most of its radioactive atoms have decayed, leaving just 25 percent of the initial quantity of the isotope remaining. How old is the sample? Give your answer in thousands of years, correct to one decimal place.arrow_forward
- According to the Bat Man, bats live for about 40 years and eat about 1,000 mosquitoes per hour. That means a single bat can eat approximately 1.75 X 108 mosquitoes in its life. Is the Bat Man correct? Show all conversions and explain in complete sentences.arrow_forwardThe population of bacteria in cultures grows at a rate proportional to the number of bacteria present at time t.After 3 hours it is observed that 400 bacteria are present. After 10 hours 2000 bacteria are present. What was the initial number of bacteria?arrow_forwardA sample of water (2 Hydrogens and one oxygen in each molecule) has a mass of 10.0 grams. What is the number of molecules of water in the 10.0 gram sample (Atomic mass in amu: H = 1, O = 16)?arrow_forward
- While researching fluid dynamics, you come across a reference to the dimensionless number called the capillary number, given by the equation below. Ca=\frac{\mu v}{\gamma }, where mu = fluid viscosity [=] g/m s and v = velocity [=] ft/s what is gamma?arrow_forwardSuppose a sample of a certain substance decayed to 69.8% of its original amount after 300 days. (Round your answers to two decimal places.) (a) What is the half-life (in days) of this substance? days (b) How long would it take the sample to decay to one-third of its original amount? daysarrow_forwardDue to global warming, over a 20-year period, many birds have extended the northern margins of their ranges by an average of about 12 miles. Assuming global warming continues at the same rate, by how many miles will they have extended their range in another 10 years?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningStars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
General Relativity: The Curvature of Spacetime; Author: Professor Dave Explains;https://www.youtube.com/watch?v=R7V3koyL7Mc;License: Standard YouTube License, CC-BY