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Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Compute the broad sense and narrow sense heritability using the formula
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- Need help with 1 and 2 questions: 1. Which of the following statements about the stationary phase is correct? A.) The birth rate equals the emigration rate. B.) The death rate equals the immigration rate C.) The birth rate equals the death rate D.) The emigration rate equals the immigration rate 2.) Life strategies of various populations can be represented by the symbols and K. Which of the following is not a characteristic of an r-selected population? A.) Its growth rate is unpredictable B.) The organisms have a short life span C.) It rarely exceeds the carrying capacity of its environment D.) The death rate of the population is very highAn exponentially growing bacterial population increases its number from 10³ and reached 10¹ cells in 8.5 hours How long will it take for the population to reach 10¹8 cells? 19.5 hours 10.5 hours 11.5 hours 12.5 hours Lacks information, cannot be determined NextWhat is the Ro for a population with 300 susceptible individuals (S) at time zero, a transmission rate (B) of 0.0020, and and infectious period 3 days? -2.4 0.606 303.002 1.8
- gyemang@bhrs X DEYTMntSq3aYWCUqtaBxfG-boRU0hP45EYnjLqWI/edit ticks & Working offline d-ons Help Arial BIUA o 三ー 三1 11 1. 3 61 9. If you were to remove barberry from an ecosystem, what are your predictions regarding the number of ticks, white-footed mice and owls? Explain your reasoning.The Golden Touch by Kait x C Clever | Portal x MasteryConnect: Home x Student M Inbox (311) - isiseliseb@g x + -> Ô https://student.masteryconnect.com/?iv=C83ROW3SJZ1FNDIN2VFK5A&tok=qRfSyt65IP28eGIkHsptyOaEX.. 2 9-12 Approved Sites b lowest poverty spa. O Glencoe Geometry SCS 20-21 SCI_BIO_CFA2 Brewer, Elise 00 4 of 24 1 5 6 3 4 7 8 9 10 > Fir Students have been studying cellular respiration in their biology class and are working on a computer simulation that allows them to test the effects of several variables on the products of respiration. In one simulation, they are asked to change the initial concentrations of several gases, one at a time, to see the impact on ATP production in a muscle cell. If the students begin by removing oxygen from the muscle cell, what should they predict will occur? O The cell will produce more ATP because oxygen inhibits ATP production in the mitochondria. O The cell will produce no ATP at all since oxygen is critical to ATP production. O The cell will…The data below represent a cohort of organism “X”, tracked from birth to death. Time period* Number alive at start of period Proportion surviving at start of time interval Deaths during period Rate of mortality during time period "0-1" 432 1.00 390 0.90 "1-2" 42 0.10 29 0.69 "2-3" 13 "3-4" 11 "4-5" 10 "5-6" 9 "6-7" 7 "7-8" 3 "8-9" 0 * Numbers are reported over eight equal sized time periods – these could represent days, weeks, months or years. a) Complete the table by recording survivorship (proportion alive at the start of the time period), the number of deaths and the mortality rate for each time period. For each column you need to ensure you indicate how you performed your calculation (e.g. show one example calculation or provide a formula). b) Plot a survivorship curve for species X using semi-log graph paper. A template sheet has been uploaded to the Problem Set 2 folder. Remember…
- The data below represent a cohort of organism “X”, tracked from birth to death. Time period* Number alive at start of period Proportion surviving at start of time interval Deaths during period Rate of mortality during time period "0-1" 432 1.00 390 0.90 "1-2" 42 0.10 29 0.69 "2-3" 13 "3-4" 11 "4-5" 10 "5-6" 9 "6-7" 7 "7-8" 3 "8-9" 0 * Numbers are reported over eight equal sized time periods – these could represent days, weeks, months or years. 1.Complete the table by recording survivorship (proportion alive at the start of the time period), the number of deaths and the mortality rate for each time period. For each column you need to ensure you indicate how you performed your calculation (e.g. show one example calculation or provide a formula). 2.Plot a survivorship curve for species X using semi-log graph paper.Remember that survivorship is, by convention, plotted as a proportion of…In the absence of public health measures, hich of the following diseases will spread the most quickly through a population? OA disease with 1% lethality and an RO of 5.5 A disease with 2% lethality and an RO of 3.5 A disease with 2% lethality and an RO of 1.5 OA disease with 20% lethality and an RO of 1.1 A disease with 1% lethality and an RO of 1.5Match each term with its most suitable description. _____ carrying capacity a. maximum rate or increase per individual under ideal conditions _____ exponential growth b. population growth plots out as an S-shaped curve _____ biotic potential c. maximum number or individuals sustainable by the resources in a given environment _____ limiting factor d. population growth plots out as a J-shaped curve _____ logistic growth e. essential resource that restricts population growth when scarce
- Mark Recapture can be written as M N = R Define each term. Use this equation to answer the following question. Show your work. A biologist for Mosaic fertilizer company catches 26 Florida scrub jays as part of their monthly environmental monitoring. Each bird is given a band. The next month, they catch 32 birds. 13 of the birds have bands. What is the estimated population size of the birds in that area?Deer Population on an Island 120 100 96 80 78 60 6아 40 36 20 TO 1 2 3 4 5 6 7 8 9 10 11 12 Number of Months Dear population 1-During which months was the growth of the deer population exponential? | 2-Give one possible reason why the population decreased after 5 months 3-What is the approximate carrying capacity of the island? 4-Explain "carrying capacity" 5-What type of density independent factors may cause the population to decrease (name 2)? 6-What type of density dependent factors may cause the population to decrease (name 2)? 7-Overall, do deer populations seem to exhibit exponential or logistic growth? Explain why Number of DeerPopulation growth model Notes Population growth Using discrete time steps, which is easier to describe that continuous change, the model for population growth is this: N₁ Try changing the blue numbers, for "r" (rate) and "N0" (start population), below. r: No: Nort Moose: 1.5 House fly: 80 *** 80 Time step (t) (N) Population at end of time step (N₁) 2 0 1 2 3 4 5 6 7 8 9 10 Wolf: 1.2 Z żż ź żż žžžžž ž Cockroach: 40 2 N₁ 160 No 12800 1024000 81920000 6553600000 5.24288E+11 4.1943E+13 3.35544E+15 2.68435E+17 N10 2.14748E+19 N₂ N3 N4 N5 N6 Try these hypothetical "r" values to begin, then try new numbers of your own: N7 N8 N9 Rabbit: 5 Endangered tiger: 0.8