Question at position 5 What is the most important determinant of genetic differences between populations of humans across the world?Local adaptationEthnicityRaceGeographic distanceClear my selection

Question

Question at position 5 What is the most important determinant of genetic differences between populations of humans across the world?Local adaptationEthnicityRaceGeographic distanceClear my selection

BlackTom AI · Accepted Answer

Question at position 5 asks: What is the most important determinant of genetic differences between populations of humans across the world?
Option 1: Local adaptation. While local adaptation can shape certain allele frequencies in response to environment, it is not the overarching determinant of global genetic differences. The broad pattern across many populations is driven more by historical separation and limited gene flow, with selection playing a role at specific loci rather than redefining overall population structure.
Option 2: Ethnicity. Ethnicity is a social construct and does not correspond neatly to discrete biological boundaries. Genetic variation does not map neatly onto ethnic labels, so this choice overstates the role of socially defined groups in determining overall genetic differences.
Option 3: Race. Like ethnicity, race is not a precise or reliable predictor of genetic differences among human populations. Genetic variation often shows gradual change rather than sharp boundaries, so race is not the most important determinant of global genetic differentiation.
Option 4: Geographic distance. This option reflects the well-supported concept of isolation by distance: as populations are physically further apart, gene flow decreases and genetic differences accumulate due to drift and historical separation. Geographic distance is broadly correlated with patterns of genetic differentiation across human populations and is considered a primary determinant among the options listed.

Question at position 5 What is the most important determinant of genetic differences between populations of humans across the world?Local adaptationEthnicityRaceGeographic distanceClear my selection

查看解析

登录即可查看完整答案

类似问题

Why can't ‘race’ be biologically defined by genetic differences?

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单