Sometimes continuous variation of a trait exists in a population, but we can only observe it as present or absent. What name do we use to describe such characteristics?
regressed |
meristic |
distributed |
threshold |
calibrated |
Sometimes continuous variation of a trait exists in a population, but we can only observe it...
Continuous variation means that a trait can have many different expression levels, like the height spectrum in people, while discontinuous variation means A.People can still have a sectrum of many differing expression levels B.People can decide what traits they want expressed in a lab C.All traits have many outcomes, and this is decided by the environment D.A trait has one of two outcomes, where Mendel showed his pea plants height at tall or short and no heights in between.
1. Continuous trait can be defined as: a. Having a wide range of possible phenotypes b. Having only a few distinct phenotypes c. Traits that are not influenced by environment d. Traits heavily influenced by environment 2. Quantitative geneticists seek to answer general questions such as: a. To what degree do alleles differ at different loci interact with each other? b. How many genes affect the phenotype? c. What are the relative contributions to the phenotype by the genes? d....
5. Quantitative trait loci(QTL) are: The loci that contribute all of the variation in a continuous trait The loci that contribute all of the genetic variation in a continuous trait The loci that contribute the broad-sense heritability in a continuous trait The loci that contribute the narrow-sense heritability in a continuous trait 6. We looked at a study where Drosophila flies were selected for phototaxis (either attracted to or repelled by light). This experiment measures how much genetic variation existed...
QUESTION 4 Find the intervals on which the function is continuous. у зе continuous everywhere discontinuous only when discontinuous only when e discontinuous only when e QUESTION 5 Provide an appropriate response. Use a calculator to graph the function f to see whether it appears to have a continuous extension to the origin. If it does, use Trace and Zoom to find a good candidate for the extended function's value at x 0. If the function does the origin from...
Natural selection can move a population beyond its initial range of variation because a. sudden increases in mutation rates are often induced by selection. b. under genetic drift there is less variation and under selection there is more. c. selection can expose hidden variation. d. selection usually increases the randomness of mating, thus increasing variation. Which of the following is true of continuously varying characters? a. They allow for blending of the effects of two genes, the blended version passed...
What is the standard deviation of the X bar? Can we observe the σ in the formula? What do we use in place of the sample standard deviation? That is sd of N observations? (it should be in square root because it’s the sd!)
One measure of variation that we can look at is the Range when we have continuous variables. We will be using this measure to create a histogram. A histogram is used to show the frequencies of certain events or categories of data values in a set of data from one time period. Data are plotted in increasing or deceasing order based on the frequency count for each data categories. Assignment I Below is a data file containing the average number...
Section 4: Sex ratio variation You want to test whether the sex ratio for a species of birds is constant, or if there can be variation among nests in the probability that a chick is female. To do this, you look at nests with 3 chicks in them, counting the number of females in each. You obtain the results in the table below. Number of female chicks in nest Number of nests 32 23 65 33 A) What are the...
One measure of variation that we can look at is the Range when we have continuous variables. We will be using this measure to create a histogram. A histogram is used to show the frequencies of certain events or categories of data values in a set of data from one time period. Data are plotted in increasing or deceasing order based on the frequency count for each data categories. Assignment I Below is a data file containing the average number...
Observe that the point (1,1,1) satisfies the equation 2. Although we may not be able to write down a formula for z in terms of x and y there is a function z(x,y) that has continuous partial derivatives, is defined for (x,y) near (1,1), and for which z(1,1) 1. For this function find the values of the partials дг/дх (1,1) and дг/ду (1,1). Use this to approximate z(1.1 ,9). Finally, find Эгјах (1,1). If we try to do similar calculations...