An altruistic task is performed from grandparent to grandchild. This task has a benefit to the grandchild of 1.8 and a cost to the grandparent of 0.6. Following Hamilton's rule, what is the value for the change of frequency for this trait in the population? -0.15 1.05 0.83 -1.65
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- You have been breeding roaches in your dorm and are trying to increase the speed in your roach population. You measure speed by timing how quickly the roaches race along the linear track in your dorm room. Your current population mean is 9.3 seconds with a standard deviation of 0.32 sec. You selected the fastest 10% of your current population to be parents of the next generation. The broad and narrow sense heritability values for racing speed in roaches are 0.93 and 0.78, respectively. You wish to develop a faster population of roaches. Round all answers properly to three decimal digits. Enter all answers without units so that they will be correctly recognized by Moodle. The numerical value for the standardized selection point is The numerical value for the truncation point is seconds. The numerical value for the selection intensity is Calculate the selection differential. S = seconds. The mean of the selected parents is seconds. The response to selection is seconds. The mean of the…A personality psychologist is interested if being a snob is heritable. To answer this question a personality psychologist recruits a huge sample of 2,593 identical twins and found that identical twins were similar in how snobby they were with an effect size of r=0.6. They also recruit a huge sample of 1845 fraternal twins and found that fraternal twins were also similar in how snobby they were with an effect size of r=0.4. Calculate the heritability coefficient for being a snob.The correlation coefficient for the height data of students at Trent (Offspring~Midparent correlation) is 0.56. What is the heritability of height? If one parent’s height were 2 inches above the population mean and the other’s were 6 inch above, what would be the expected deviation of the height of their child from the population mean.
- Gray tree frog (Hyla versicolor) males call to females, and their calls can be characterized bythe pulse number and call period. The additive genetic variance of pulse number is 0.37,the additive genetic variance of call period is 0.16, and the covariance of the two traits is0.25. What is the additive genetic correlation of the two traits?The following variances were calculated for two traits in a herdof hogs.Trait VP VG VABack fat 30.6 12.2 8.44Body length 52.4 26.4 11.70 Calculate broad-sense (H2) and narrow-sense (h2) heritabilitiesfor each trait in this herd.Variance in back fat & body length were calculated in a heard of hogs and summarized in the table below. Trait In hogs Back fat Body length Vp 24.5 48.2 VG 15.5 28.4 VA 7.0 12.6 Calculate the narrow-sense heritability for body length, and provide an answer with 2 places behind the decimal. [h²] (Enter an answer with 2 or 3 significant figures)
- You have been breeding roaches in your dorm and are trying to increase the speed in your roach population. You measure speed by timing how quickly the roaches race along the linear track in your dorm room. Your current population mean is 6.2 feet/second (ft/sec) with a standard deviation of 0.41 ft/sec. You selected the fastest 5% of your current population to be parents of the next generation. The broad and narrow sense heritability values for racing speed in roaches are 0.92 and 0.81, respectively. You wish to develop a faster population of roaches. Round all answers properly to three decimal digits. Enter all answers without units so that they will be correctly recognized by Moodle. The numerical value for the standardized selection point is The numerical value for the truncation point is ft/sec. The numerical value for the selection intensity is Calculate the selection differential. S = ft/sec. The mean of the selected parents is ft/sec. The response to selection is ft/sec. The…The variance for weight in a particular herd of cattle is 484 pounds2.The mean weight is 562 pounds. How heavy would an animal haveto be if it was in the top 2.5% of the herd? The bottom 0.13%?In a herd of dairy cows the narrow-sense heritability for milk protein content is 0.76, and for milk butterfat it is 0.82. The correlation coefficient between milk protein content and butterfat is 0.91. If the farmer selects for cows producing more butterfat in their milk, what will be the most likely effect on milk protein content in the next generation?
- If you breed fast box turtles and use midparent-midoffspring regression to determine that the heritability of running speed is 0.12. The average running speed of box turtles is 0.44 meters/second. The 20 fastest turtles is picked and find their mean running speed is 0.62 m/s. By breeding these fast turtles, what will the average running speed of their offspring be?For what human behaviors ,if any, are you sure that heritability would be extremely low? give at least 2-3sentences.The narrow-sense heritability of growth rate in swine is 0.4. The mean of the population is 100 kg. A male and a female measuring 115 and 125 kg, respectively, mate and produce a number of offspring, which are reared in an average environment. What is the expected value of the trait among these offspring?