What evidence would be studied by a Biogeographer?
Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved. Fossils provide evidence of long-term evolutionary changes, documenting the past existence of species that are now extinct.
Which of the following would not result in reproductive isolation?
Reproductive isolation would not result from having genetically identical populations spread out over a wide range. As long as the populations are experiencing gene flow reproductive isolation would not be possible.
Which of these conditions is not among the requirements of the Hardy Weinberg equilibrium?
Hardy-Weinberg equilibrium requires no immigration or emigration, a large population, random mating, and no spontaneous mutations (all of which are virtually unavoidable in nature). Natural selection would violate these conditions.
Which statement describes the bottleneck effect quizlet?
genetic drift. a gene mutation. Which statement describes the bottleneck effect? It occurs when a population is subjected to near extinction.
What are the 5 evidences of evolution?
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos.
What are the 6 evidences of evolution?
Key points:
- Anatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous structures).
- Molecular biology. DNA and the genetic code reflect the shared ancestry of life. …
- Biogeography. …
- Fossils. …
- Direct observation.
What are three types of barriers that can lead to reproductive isolation?
Any of the factors that prevent potentially fertile individuals from meeting will reproductively isolate the members of distinct species. The types of barriers that can cause this isolation include: different habitats, physical barriers, and a difference in the time of sexual maturity or flowering.
What is reproductive isolation quizlet?
reproductive isolation. separation of species or populations by behavior, geography or time so that they cannot interbreed and produce fertile offspring.
Which does not affect Hardy-Weinberg equilibrium?
It does not specifically selection for traits that are fit for the environment. Hence, answer is "Genetic drift"
Which of the following does not fit with conditions to maintain genetic equilibrium?
So, the correct answer is 'The population is small'
Which of the following describes a bottleneck effect?
The bottleneck effect describes the phenomenon when a population has a sudden reduction in the gene pool due to natural environmental events, natural disasters, disease, or human involvement. This reduction in the gene pool will likely cause a bias that did not exist in the original population.
Which scenario describes an example of the bottleneck effect?
The drought lake is the best example of the Bottleneck effect because the event was random and the survivors lived due to random chance. A small number of the fish reestablished their population in the lake, their genetic diversity was also reduced.
What are 4 types of evidence for evolution?
Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.
What are the 5 types of evidence of evolution?
Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.
What are the 5 evidence of evolution?
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos.
What are three types of barriers that can lead to reproductive isolation quizlet?
What three types of barriers that can lead to reproductive isolation? Behavioral barriers, geographic barriers, and temporal barriers.
What are 3 types of barriers that can lead to reproductive isolation?
Any of the factors that prevent potentially fertile individuals from meeting will reproductively isolate the members of distinct species. The types of barriers that can cause this isolation include: different habitats, physical barriers, and a difference in the time of sexual maturity or flowering.
Which of the following is not an assumption of the Hardy-Weinberg equation?
Which of the following is NOT an assumption required for Hardy-Weinberg equilibrium? Explanation: Hardy-Weinberg states that for a population to be in equilibrium, it must not be experiencing migration, genetic drift, mutation, or selection. By this definition, population size cannot fluctuate.
Which factors can affect Hardy-Weinberg equilibrium?
The 5 factors are – gene flow, mutation, genetic drift, genetic recombination and natural selection.
Which of the following is not a requirement for a population to be in genetic equilibrium that is which violates the Hardy-Weinberg conditions?
Hardy-Weinberg equilibrium has a set of conditions that must be met in order for the population to have unchanging gene pool frequencies. There must be random mating, no mutation, no migration, no natural selection, and a large sample size. It is not necessary for the population to be at carrying capacity.
Which is not a condition for Hardy-Weinberg equilibrium quizlet?
Which of the following is NOT a condition of the Hardy-Weinberg equilibrium? Mutations cannot occur in a population.
What are examples of the bottleneck effect?
The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced. Events like natural disasters (earthquakes, floods, fires) can decimate a population, killing most individuals and leaving behind a small, random assortment of survivors.
What could cause bottlenecks?
The bottleneck may be caused by various events, such as an environmental disaster, the hunting of a species to the point of extinction, or habitat destruction that results in the deaths of organisms.
What is an example of bottleneck?
For example if a senior manager is slow in approving a task that is a prerequisite for another task, then that manager is slowing the entire process down (i.e. they are the bottleneck).
Which of the following is an example of the bottleneck effect quizlet?
Which of the following is an example of bottleneck effect? An earthquake occurs, but does not kill any people or animals. A group of birds migrates to a small island and is unable to find its way back to the mainland.
What are the evidence of evolution quizlet?
The major pieces of evidence for this theory can be broken down into the fossil record, embryology, comparative anatomy, and molecular biology – the basis of evolution.
Which of the following can result in reproductive isolation?
What three types of barriers that can lead to reproductive isolation? Behavioral barriers, geographic barriers, and temporal barriers.
What are reproductive isolation barriers?
Reproductive isolation can be either prezygotic (barriers that prevent fertilization ) or postzygotic (barriers that occur after zygote formation such as organisms that die as embryos or those that are born sterile).
What idea did Hardy and Weinberg disprove?
They disproved the idea that dominant alleles' percentages will rise throughout generations, which causes recessive alleles' percentages to sink.
Which one of the following would cause the Hardy Weinberg principle to be inaccurate?
Terms in this set (52) Which one of the following would cause the Hardy Weinberg principle to be inaccurate? – anything that causes evolution can prevent the hardy weinberg prinicple form accuratly predicting genotype frequencies(random genetic drift), natural selection, gene flow, nonrandom mating.