Biological Science
Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Chapter 26, Problem 6TYK
Summary Introduction

Introduction:

Mutation is a type of evolutionary process that results in the addition of new alleles to the organism. The mutation can be beneficial, dangerous or may not affect the normal development of an organism so being the neutral type of mutation.

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Which aspect(s) of natural selection is(are) illustrated by the figure below? Check ALL answers that apply.    A. Variation among individuals must be genetically transmissible to the next generation.   B. Variation must exist in a population.   C. Variation among individuals leads to differences in lifetime reproductive success.   D. More individuals are produced each generation than the environment can support, resulting in competition for survival.
In the movie on rock pocket mice, what did the team discover about black colouration? Select the ONE BEST answer. a. Fur colouration is the result of a new adaptive behaviour where pocket mice rolled in lava dust to camouflage themselves. b. It is the result of the same, single mutation in all populations. C. Different mutations cause similar dark colouration in different populations. d. One specific mutation causes black or white fur depending on the population. e. Fur colouration is the result of dietary changes in different environments, not natural selection.
What is meant by the following statement? "When mutation is random, natural selection is not." Mark all correct answers Group of answer choices A. A mutation is caused by changes in the environment. B. Natural selection can favor some mutations and not others. C.Mutations for advantageous traits are more likely to be passed on to the next generation. D.Selection can change depending on the environment.
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Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY