Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 44, Problem 8TYU
Summary Introduction
To review:
The hypothesis of Dalton and describe whether it was a good hypothesis or not.
Introduction:
Dalton proposed a hypothesis about color blindness, in which he stated that the fluid present in the eyeball of the color-blind people is blue. The blue fluid absorbs the red light coming from the stimulus; as a result, the red light does not reach the retina, and they are not able to see the blue color.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following best explains afterimages? a. trichromatic theory b. opponent-process theory c. color-deficient vision d. monochrome color blindness
Listen
The following passage comes from an abstract in a study about analyzing hearing
loss in twins:
"A clinical and genetic study on 25 twin pairs with at least one deaf member was
performed. Concordance rate of hearing loss was 0.88 in MZ and 0.50 in DZ pairs"
(MZ =monozygotic or identical twins. DZ -Dizygotic or fraternal twins). From this
data alone, what can you conclude about the roles of environment and genetics in
hearing loss? Explain how you reached your conclusion.
Some women who have had male children who display color blindness have been demonstrated to distinguish between colors that are not readily distinguished by other people. Propose an explanation.
Chapter 44 Solutions
Biological Science (7th Edition)
Ch. 44 - 1. In the human ear, how do different hair cells...Ch. 44 - What type of sensory system do migrating birds use...Ch. 44 - Considering that sounds and odors both trigger...Ch. 44 - Prob. 6TYUCh. 44 - 7. Compare and contrast the lateral line system of...Ch. 44 - Prob. 8TYUCh. 44 - Prob. 9TYPSSCh. 44 - PROCESS OF SCIENCE Design experiments to test the...Ch. 44 - Prob. 12PIATCh. 44 - Prob. 13PIAT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Of the following statements about the human eye, which would Paley agree with the most? A. The eye has lost its purpose and it's obsolete. B. The eye is a perfect fine-tuned machine well suited to its purpose. C. The eye has a use, but it was not evolved for that use.arrow_forwardIn the discussion section the authors wrote “The prevailing hypothesis about the action of tACS is the alternating fields can increase or decrease the power of oscillatory rhythms in the brain, and in a frequency-dependent manner, through synchronizing and desynchronizing neuronal networks [17].” a. Is the hypothesis a null hypothesis or an alternative/alternative hypothesis? b. By what word or words do you know that your answer to the question is correct? c. Why did you choose this word or words as an answer to the question?arrow_forwardReview the summary of a published scientific study below: Patients with multiple sclerosis frequently suffer from blurred vision. Drug X was developed to reduce blurred vision in healthy patients, but the effectiveness had not been tested on those suffering from multiple sclerosis. A study was conducted to determine if Drug X is effective at reducing blurry vision in multiple sclerosis patients. To be considered effective, a drug must reduce blurred vision by more than 30% in patients. Researchers predicted that a 20 mg dose of the drug would be effective for treating blurred vision in multiple sclerosis patients by reducing blurred vision by more than 30%. Drug X was administered to groups of multiple sclerosis patients at three doses (10 mg/day, 20 mg/day, 30 mg/day) for three weeks. A fourth group of patients was given a placebo containing no drug X for the same length of time. Vision clarity was measured for each patient before and after the three-week period using a standard…arrow_forward
- When a person blinks, the part of the brain that interprets visual stimulation is suppressed. The spontaneous act of blinking is controlled by the area of the brain that controls involuntary movements such as breathing and blood pressure. To determine whether the lack of light or the act of blinking causes the suppression, scientists had subjects close their eyes and then placed a bright flashing light in their mouth to stimulate the photoreceptors in the eyes through the palate. Visual stimulation was still suppressed. So the photoreceptors in the retina were not stimulated even though they were exposed to light. This study demonstrated that when a person blinks, it is the act of blinking and not the absence of light that causes the suppression of visual stimulation. In the diagram above, identify the part of the brain that is suppressed during blinking and the part of the brain that controls involuntary, spontaneous blinking. Select one: a. 3 and 8 b. 2 and 9 c. 5 and 6 d. 1 and…arrow_forwardPlease help me with the following question and make sure its 100% accurate pls Can parents distinguish their own children by smell alone? To investigate, Porter and Moore (1981) gave new T-shirts to children of nine mothers. Each child wore his or her shirt to bed for three consecutive nights. During the day, the shirts were kept in individually sealed plastic bags. No scented soaps or perfumes were used during the study. Each mother was given the shirt of her child and one shirt of another randomly chosen child. She was then asked to identify her own child’s shirt by smell. Eight of nine mothers identified their children correctly. Answer the following questions using a two-sided test and a significance level of 0.05.arrow_forwardWhat is the Twilight Zone? A. Where alignments appear plausible and are statistically significant. B. Where alignments may appear plausible to the eye, but are no longer statistically significant. C. Where alignments neither appear plausible nor statistically significant. D. Where alignments share 30% identity.arrow_forward
- What is vision? Why is vision important for life on earth?arrow_forwardColour blindness can result from the loss of specific types of cones, or it can occur in individuals having fewer cones of a given type. An individual has 50% less than the normal number of green cone photoreceptors in his or her retina. How would this affect his or her vision? a. This person has night blindness. He or she should start to eat more carrots to replenish the stock of retinal molecules in the retina. b. This person will have difficulty adapting to varying light levels. His or her cone receptors take much longer to adapt in a brightly lit area. c. This person does not have a colour blindness because no green cone photoreceptors are in the retina; only red, yellow, and blue photoreceptors exist. d. This person has a mild green colour blindness. He or she cannot see green colours very clearly and has difficulty distinguishing colours involving green hues.arrow_forwardWho originated the quantitative receptor theory?arrow_forward
- A and k light chains have different functions. Select one: True Falsearrow_forwardInclude a 5-10 sentence explanation of how the sheep’s eye senses light and relays that data to the brain to interpret visual information. Some pieces to consider: What path does the light travel? What structures and pigments does it interact with? How does the signal travel to the brain? Where in the brain is the data processed? How is this different in the high light vs low light? How might the sheep’s vision differ from our own?arrow_forwardplese explain how human see colors?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Principles Of Radiographic Imaging: An Art And A ...
Health & Nutrition
ISBN:9781337711067
Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac
Publisher:Cengage Learning
Visual Perception – How It Works; Author: simpleshow foundation;https://www.youtube.com/watch?v=DU3IiqUWGcU;License: Standard youtube license