Question 2 Which of the following is NOT a requirement of natural selection? 1. Variation must exist between individuals in the population. 2. Variation between individuals must be transmissible to the next generation. In other words, the trait must be heritable. 3. Variation between individuals must lead to differences in survival and reproduction 4. all of the above are requirements for natural selection

Question 2 Which of the following is NOT a requirement of natural selection? 1. Variation must exist between individuals in the population. 2. Variation between individuals must be transmissible to the next generation. In other words, the trait must be heritable. 3. Variation between individuals must lead to differences in survival and reproduction 4. all of the above are requirements for natural selection

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 20QP: Natural Selection Affects the Frequency of Genetic Disorders Will a recessive allele that is lethal...

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QUESTION 2 Which statement about the genetic basis of races in humans is correct? You are more closely related to all people of your own race than you are to individuals of different races Differences in health outcomes among members of different racial groups are primarily due to genetic differences between these groups Racial differences only account for about 3-5% of genetic variation in humans Different racial groups are separated by hundreds of thousands of years of evolution
Question 10 The process of Natural Selection depends on Variability in the traits from one species to another Every member of a species surviving All of the above The environment staying the same over generations Inheritability of the traits withina population
Question 2 The definition of natural selection includes: the inability of poorly adapted individuals to produce offspring. the adoption of the physical characteristics of the parent by their offspring. O the cloning of individuals to produce exact copies. O the ability of some individuals who are better adapted to their environment to produce more offspring than poorer adapted individuals. O resulting in the extinction of the selected organisms. Question 3 Let's assume that you have been working out at the gym every day for months until you are completely buffed out with well defined muscles. Which evolutionary biologist from Darwin's century would claim that your children would be born in a buffed out condition? Hutton O Leclerc Darwin O Lyell O Lamarck
Question 8 Which of these statements is correct? Genetic variation is not random and natural selection is random. Both natural selection and genetic variation are directed processes. Genetic variation is random and natural selection is not random. Both genetic variation and natural selection are random processes. Natural selection is directed and genetic variation is not directed.
Question 5 Which of the following best describes the contribution that Malthus made to evolution? the idea that parents and offspring are often similar in their traits and therefore heritability is important in evolution the idea that populations face scarcity and seldom allow all individuals to reproduce the idea that traits vary over time, so species look different at different times in history the idea that some traits help individuals to better use their environment to survive and reproduce, leaving their offspring in certain parts of the landscape
Question 1 Choose the following scenario that is best matched to the idea of evolution by natural selection. 2% of individuals in a population die in a flood; the population remains large and there is no apparent pattern to the deaths O A group of birds grow to different sizes depending on their diet and their overall size is not heritable. A snowstorm arrives killing smaller birds. Some bears are born with long, sharp claws for digging tubers (roots) out of the ground and eating them. Claw length "runs in families" with some families exhibiting longer claws. A late spring kills off many bears with short claws A person experiences wrinkled fingertips in the water, but they are smooth when not in the water
QUESTION 1 Why are island chains such as the Galapagos Islands a good place to observe the effects of evolution? Mutation rates are higher on island chains Organisms that live on islands tend to reproduce more quickly The relatively rapid geological changes that happen on islands can create distinct environments where different traits are selected for Living things are not capable of traveling from one island to another Save
QUESTION 3 Which one of the following conditions would most likely allow gene frequencies to change by chance? large population small populations mutation gene flow
Part A If the moth population in your simulation of natural selection contained 10 black moths (BB), 18 grey moths (Bb), & 17 white moths (bb), how many total copies of the black allele (B) would this population of 45 moths be carrying? (Remember moths are diploid, so each moth carries two alleles for each gene.) 38 20 28 19 36
QUESTION 3 Which of the following is a false statement about the Hardy-Weinberg Principle? a. It needs a large population b. No mutations or natural selection of an allele can occur c. It requires a random mating population. d. Migration is essential to maintain allelic frequency
25. Answer the following questions based on the facts and inferences related to natural selection that we discussed in class, as well as the simulations you performed with the Evodots lab. If individuals vary, and variation affects survival and reproduction, and variation is heritable: there will be natural selection resulting in evolution. there will be no natural selection, but there will be evolution due to natural selection. there will be natural selection, but it will not result in evolution. there will be no natural selection, and there will be no evolution due to natural selection. 24. Answer the following questions based on the facts and inferences related to natural selection that we discussed in class, as well as the simulations you performed with the Evodots lab. If individuals vary, and variation affects survival and reproduction, but variation is not heritable: there will be natural selection resulting in evolution. there will be no natural selection, but…
Question 2 Answer the following questions about evolution. Number your responses according to the questions (1-4). How can negative traits that don't show up until old age continue in populations? (Why aren't they eliminated through natural selection?) As part of your answer, provide an example. Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If natural selection occurs in this population, what would you expect to see if you returned in 100 mouse generations? Describe what you'd see in terms of fur colors in the population. Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If mutations occur in this population, what could you see if you returned in 100 mouse generations, that would tell you mutations had occurred? Describe what you'd see in terms of fur colors in the population, and how it would be different from what you'd see in #2. If dark skin helps protect folate…