Which of the following is the best example of gene flow 3 points
Which of the following best describes how pollen is carried by the wind from one population of plants to another, resulting in cross-fertilization?
Which of the following is an example of Paedomorphosis
A well-known example of paedomorphosis is the Mexican axolotl, which retains its feathery gills in adulthood after losing them as an infant.
What is gene flow accomplished by
Gene flow is the exchange of genes between two distinct populations, and it typically occurs when animals or plant spores move to a new area. Gene flow occurs whenever a gene is added to a population where it previously did not exist.
Which one of the following is an example of Evo Devo
Some fish have bony fins that they can use to walk to another body of water if the one they are in dries up. Which of the following is an example of evo-devo?
How does gene flow affect biodiversity
Pathogens that exhibit high gene flow typically have greater genetic diversity than pathogens that exhibit low gene flow because high gene flow expands the size of the population and the geographic area in which its genetic material occurs.
Which of the following is an example of directional selection
Examples include fossil records that show that the size of black bears in Europe increased during each glacial period but decreased during the interglacial periods of the ice ages. Another example is the size of a population of finches beaks.
Which of the following is the best example of stabilizing selection
Human birth weight, the number of offspring, the color of the camouflage coat, and the density of cactus spines are classic examples of traits that are the product of stabilizing selection.
What was the first genetic material
The ability of RNA to both store genetic information and translate it into proteins has led scientists to hypothesize that RNA was the first genetic material.
Which of the following about genetic drift is true
Genetic drift increases the proportion of heterozygotes in a population and is more likely to occur in large populations than in small populations, according to which statement?
What is q2 Hardy-Weinberg
In the equation, the homozygous dominant genotype (AA in this case) is represented by p2, the homozygous recessive genotype (aa) is represented by q2, and the heterozygous genotype (Aa) is represented by 2pq.
What occurs during genetic drift quizlet
Graded variation in some traits of individuals that parallels a gradient in the environment. Genetic drift that happens when a few individuals become isolated from a larger population, with the result that the new populations gene pool is not reflective of the original population.
Which of the following would seem to be an example of neutral variation
Biology Chapter 13
|Under some conditions, heterozygotes have greater reproductive success than homozygotes. What is this called?||heterozygote advantage|
|Which of the following would seem to be an example of neutral variation?||human fingerprint patterns|
Which of the following is most likely to decrease genetic variation
Therefore, stabilizing natural selection is the right response.
Which of the following processes tends to increase genetic variation in a population
Natural selection and genetic drift tend to enhance genetic differences among populations; migration tends to homogenize genetic difference, reducing the differences among populations. Typically, mutations increase genetic diversity; the other three processes tend to reduce it.
Which of the following is the best modern definition of evolution
When living organisms reproduce, they transmit a set of traits to their offspring. Evolution is defined as the change in inherited traits of a population of organisms through successive generations.
What is genetic variations
Natural selection, one of the main forces driving the evolution of life, is made possible by genetic variation, which is the existence of differences in gene sequences between individual members of a species.
Which of the following statements correctly describe s characteristics of genetic drift
Which of the following statements about genetic drift is true? All of the listed answers are true. It can result in random changes in allele frequencies. It is significant in small populations.
What is the best explanation for the fact that all the blue eye alleles have not disappeared in the human population
The population is likely in Hardy-Weinberg equilibrium for that locus, which is the best explanation for the persistence of all the blue-eye alleles in the human population.