[单项选择]Passage 4

The evolution of sex ratios has produced, in most plants and animals with separate sexes, approximately equal numbers of males and females. Why should this be so Two main kinds of answers have been offered. One is couched in terms of advantage to population. It is argued that the sex ratio will evolve so as to maximize the number of meetings between individuals of the opposite sex. This is essentially a "group selection" argument. The other, and in my view correct, type of answer was first put forward by Fisher in 1930. This "genetic" argument starts from the assumption that genes can influence the relative numbers of male and female offspring produced by an individual carrying the genes. That sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted. Su A. conducted their research at approximately the same time B. sought to manipulate the sex ratios of some of the animals they studied C. sought an explanation of why certain sex ratios exist and remain stable D. studied reproduction in the same animal species 查看答案 更多"Passage 4 The evolution o"的相关试题: [单项选择]Passage 4 The evolution of sex ratios has produced, in most plants and animals with separate sexes, approximately equal numbers of males and females. Why should this be so Two main kinds of answers have been offered. One is couched in terms of advantage to population. It is argued that the sex ratio will evolve so as to maximize the number of meetings between individuals of the opposite sex. This is essentially a "group selection" argument. The other, and in my view correct, type of answer was first put forward by Fisher in 1930. This "genetic" argument starts from the assumption that genes can influence the relative numbers of male and female offspring produced by an individual carrying the genes. That sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted. Su A. definitive and thorough B. inaccurate but popular, compared with Hamilton’s work C. accurate, but trivial compared with Hamilton’s work D. admirable, but not as up-to-date as Hamilton’s work 查看答案 [单项选择]Passage Four The evolution of sex ratios has produced, in most plants and animals with separate sexes, approximately equal numbers of males and females. Why should this be so Two main kinds of answers have been offered. One is couched in terms of advantage to population. It is argued that the sex ratio will evolve so as to maximize the number of meetings between individuals of the opposite sex. This is essentially a "group selection" argument. The other, and in my view correct, type of answer was first put forward by Fisher in 1930. This "genetic" argument starts from the assumption that genes can influence the relative numbers of male and female offspring produced, by an individual carrying the genes. That sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted A. conducted their research at approximately the same time B. sought to manipulate the sex ratios of some of the animals they studied C. sought an explanation of why certain sex ratios exist and remain stable D. studied reproduction in the same animal species 查看答案 [单项选择]The evolution of sex ratios has produced, in most plants and animals with separate sexes, approximately equal numbers of males and females. Why should this be so Two main kinds of answers have been offered. One is couched in terms of advantage to population. It is argued that the sex ratio will evolve so as to maximize the number of meetings between individuals of the opposite sex. This is essentially a "group selection" argument. The other, and in my view, correct type of answer was first put forward by Fisher in 1930. This "genetic" argument starts from the assumption that genes can influence the relative numbers of male and female offspring produced by an individual carrying the genes. That sex ration will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted. Suppose that the population consisted mostly of females: then an individual who produced sons only would have more grandchildren. In contrast, if the popu A. fallacious and unprofessional B. definitive and thorough C. inaccurate but popular, compared with Hamilton’s work D. admirable, but not as up-to-date as Hamilton’s work 查看答案 我来回答: 提交 最新试题 ●    [填空题]《铁路技术管理规程》（铁总科技[2014]172号）（高速铁路部分）规定，列车调度员（车站 ●    [判断题]《铁路技术管理规程》（铁总科技[2014]172号）（高速铁路部分）规定， 列车在区间被迫 ●    [判断题]《铁路技术管理规程》（铁总科技[2014]172号）（高速铁路部分）规定，列车在区间停车需 ●    根据《建筑机械使用安全技术规程》（JGJ33-2012），4.7，以下关于卷扬机施工作业的描述正确的 ●    [判断题]铁总科技【2014】-172号铁路技术管理规程,第7章第177条 高速铁路接触网标称电压值 ●    [判断题]铁总科技【2014】-172号铁路技术管理规程,第16章328条需要向列车显示手信号时，人 网站地图 我要搜题网  版权所有  ©2023  湘ICP备18016427号   购买搜题卡查看答案 [会员特权] 开通VIP， 查看 全部题目答案 [会员特权] 享免全部广告特权 推荐91天 ¥36.8 ￥80元 31天 ¥20.8 ￥40元 365天 ¥88.8 ￥188元 请选择支付方式 微信支付 支付宝支付 点击支付即表示同意并接受了《购买须知》 立即支付 系统将自动为您注册账号 已有账号登录 找回账号密码 请使用微信扫码支付 订单号： 请不要关闭本页面，支付完成后请点击【支付完成】按钮 支付完成 取消支付 恭喜您，购买搜题卡成功 系统为您生成的账号密码如下： 账号 密码 重要提示：请拍照或截图保存账号密码！ 我要搜题网官网：https://www.woyaosouti.com 我已记住账号密码