Exam 3 Apr 4 at 7:56pm Instructions e 75 minutes to complete the exam. Please se
ID: 253347 • Letter: E
Question
Exam 3 Apr 4 at 7:56pm Instructions e 75 minutes to complete the exam. Please see the study guide to prepare for the possible open s ahead of time as they require peer reviewed sources. Plan your time carefully! Question 12 1 pts A group of lice which specializes on chickens has found itself accidentally transferred to a green parrot instead and evolve into a new species. Which of the following is this an example of? Founders effect O Sexual selection None of the above O Gene flow Bottleneck effect Next PreviousExplanation / Answer
Answer: Option 1: Founders effect
Founders effect occurs when a small group of population separates from original population and forms a new one.
In the above example lice specialized on chicken (Original population) is now transfered to the green parrot and evolved into new species (founder populations) by founder mutation
Hence, the above example fits into the description of founders effect
The correctness of the answer is also supported by the other options which do not the description of the example.
Sexual selection: Sexual selection is a mode of natural selection where members of one sex of the population competes among each other to mate with opposite sex. In the above example, there is no competition among the lice. Infact the lice doesn't have competition as there are little members in the group
Gene flow: Gene flow refers to the exchange of genes between two separate populations. In the question given, there are no two populations of lice and only group of mice got separated. Hence, it is not gene flow
Bottle neck effect: When the population size is markedly reduced due to the environmental impacts like earthquake, floods, fire, disease, droughts or human interference (Ex. genocide), it is refered to as Bottle neck effect. There is no reduction of population size in the given example and there is also no environmental impact. Hence, it is not Bottle neck effect.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.