QUESTION 58 The degree to which natural selection can operate depends on the degree to which a trait is heritable and the genetic variation about that trait. O True False O This is sometimes the case but not always.
Q: QUESTION 2 A character is Oa heterozygous organism O an observable physical feature O a physical…
A: A character is a variation in an observable physical feature. In biology , character is any…
Q: Question 2 Horse evolution is well documented in the fossil record. Describe three major trends in…
A: Evolution is described as the changes in the characteristics of an organism that takes multiple…
Q: QUESTION 31 You are examining a population that has recently been subject to artificial selection…
A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is…
Q: QUESTION 5 Without crossing over, people would be and the human species would be to survive. O A.…
A: Since we only answer 1 question in case of multiple questions, we’ll answer the first question as…
Q: From an evolutionary point of view, why can't we say that the human species is the most evolved?…
A: Evolution is the gradual modification of life forms through a period of time. This process takes…
Q: QUESTION 31 The ability to taste PTC is a dominant, non-sex linked trait. Jack and Jill are both PTC…
A: An allele is a variant form of a given gene. Phenotype is the observed physical traits of an…
Q: Question 5 Accurately complete the statement Evolution is best defined as... O a. a large, randomly…
A: Answer. Evolution is a slow, gradual, continuous, irreversible, and natural process of change to…
Q: Question 2. A widow's peak hairline is a dominant trait and a straight hairline is a recessive…
A: The traits are transferred from parents to offspring, i.e. from one generation to another. Traits…
Q: Question 1 A girl is born with Turner syndrome. Where did the non-disjunction event occur? Ir…
A: Females with "Turner syndrome" have delayed sexual development. They are generally sterile, having…
Q: QUESTION 3 A forward mutation is O A. a mutation that changes any allele to another allele O B. a…
A: Mutation is a process that alters the genetic constitution of an organism. It occurs when DNA is…
Q: QUESTION 1 Some dogs bark while following a scent trail; others are silent. The barker allele is…
A: Since you have asked multiple parts of the same question, we are eligible to answer only the first…
Q: Question 7 "In UAE, you can breed goats and sheep during the winter time only True False
A: Goat and sheep in UAE: usually, these animals are an important source of food in UAE. That's why…
Q: QUESTION 8 "Optimal behavior is the maximum value, given:" (A) Benefit - cost (B) Cost - benefit (C)…
A: The correct option is B Cost -Benefit Cost-benefit analysis as applied to animal behavior pre-…
Q: QUESTION 41 Before you can say that selection is acting on a locus you need to do some calculations.…
A: The Hardy-Weinberg equilibrium states that the genetic variation (allele and genotype frequencies)…
Q: What is the expected inbreeding coefficient for an offspring that is the result of an inbreeding…
A: (a) 0.25 is correct answer. An animal is only inbred if its parents are related. The inbreeding…
Q: QUESTION 11 Which type of selection pressure is most likely to lead to the evolution of distinct…
A: Selection pressure refers to the forces that influence which variants give an organism a better…
Q: You are examining a beloved population of trillium in the backyard of your childhood home. You…
A: Evolution in biology can be mostly simply described as descent with modifications, which comprises…
Q: Question 1. You have sampled a population in which you know that the percentage of the homozygous…
A: Here we have sampled a population In which % of the homozygous recessive genotype (aa) is 36% A…
Q: Question 1 of 12 If 81% of a population is homozygous recessive for a given trait a. What is the…
A: Introduction :- The term homozygous recessive refers to an organism with two identical copies of the…
Q: You often hear that we evolved from monkeys. Write a concise and scientific, yet understandable to…
A: The statement that we have evolved from monkeys is true in layman language but not scientifically.…
Q: QUESTION 68 Which of the following statements about social behavior is FALSE? O A. Among the…
A: INTRODUCTION Social psychology is the study of the dynamic relationship between individuals and the…
Q: Natural selection occurs 1. when a new genetic variation occurs that allows individuals to have a…
A: Natural selection can be described as the process in nature by which organisms which are better…
Q: Question 2 The definition of natural selection includes: O the inability of poorly adapted…
A: Natural Selection -- The theory of natural selection is based on the direct observation done by…
Q: Question 38 The ancestral insect probably resembled which description listed below? A head or trunk…
A: The kingdom Animalia is classified into two broad categories based on the presence of notochord; The…
Q: QUESTION 3 Which mechanism produces variation for evolution by shuffling existing alleles? O rapid…
A: The variation always exist in the population that ultimately responsible for the evolution of the…
Q: Question 11 in the "Ram Model" proposed by Roselli, the researchers demonstrated that O Sheep learn…
A: 1.Goal of Ram model proposed by roselli is to understand male or female differentiation and…
Q: QUESTION 17 Micro- and Macro-evolution are not possible without DNA mutation and reproduction making…
A: Question 17: Micro- and Macroevolution are not possible without DNA mutation and reproduction making…
Q: Early selection theories ____________ explain the cocktail party effect. a. can b. cannot…
A: Cocktail party effect is the ability of people to focus on a single auditory source in the presence…
Q: Question 36 On the tree below, which feature do all organisms inherit? shark hare parrot tuna frog…
A: Option a (A) is the correct answer As we move from A to F we find that :- A) Vertebrae:- is common…
Q: QUESTION 1 All Native Americans are believed to be descended from a small group of individuals who…
A: When changes in the genetic material of a population occur over time then this process is called…
Q: QUESTION 7 A gene is O A. one of the 23 pieces of DNA that you inherit from each parent so sum total…
A: Gene - Gene is defined as basic structural and functional unit of life. Gene is the physical unit of…
Q: QUESTION 5 Although it is rare, some cetacean species have occasional individuals with hind paired…
A: Answer : Option 3 and 4 correctly describes the phenomenon. Option 3 is correct because it is true…
Q: Question 10 In a population of mountain lions, 9% of the individuals suffer from a disease caused…
A: The Hardy-Weinberg PrincipleThe Hardy-Weinberg principle states that allele and genotype frequencies…
Q: Question 12 What is the allele frequency of the A allele in a population with 15 AA homozygotes, 10
A: The Hardy-Weinberg principle (or Equation) states: - 1 = p + q where p denotes A's allele frequency…
Q: Question 5 Early classifications of the polar bear were based on reproductive isolation from brown…
A: As early naturalists gained a better understanding of the diversity of creatures, they devised many…
Q: Which of the following statements about speciation is correct?
A: Natural selection: It is the theory of evolution which is proposed by Darwin where the organisms…
Q: Question 1 The possession of one of two types of earlobes (hanging or attached) is sometimes used to…
A: The study of inheritance pattern is an important phenomenon for tracing the heritable traits which…
Q: Question 4: What percentage or Americans believe that evolution does not occur and that humans and…
A: Correct option is B.Between 20% and 40% According to the Pew Research Center, 62 percent of…
Q: Question 2. On the logarithmic scale, an increase from 0.1 to 0.5 moths per plant is the same…
A: As per the given information, Logarithmic increase is from 0.1 to 0.5 moths per plants. The…
Q: QUESTION 18 Most of the human genetic diversity occurs: Within diverged genetic populations O…
A: Genetic differences aid the population's survival and evolution in a changing environment. The…
Q: Question 42 The term "clone" refers to any genetically identical population. A True B) False
A: Answer : The term "clone" refers to any genetically identical population . This is TRUE because…
Q: Question 5 Hypotheses can be proven to be false. O True
A: A hypothesis is normally stated to define and allow to explain the meanwhile proposed explanation…
Q: QUESTION 43 Which of the following statements is true about linkage disequilibrium? O a. D= -0.21…
A: Disequilibrium refers to imbalance, or spatial disorientation.
Q: Question 62 Joshua Akey found evidence that historic mating and hybridization between Modern Humans…
A: Human evolution is defined as "the process by which humans evolved on Earth from now-extinct apes."…
Q: Question 9 D The presence of tiny hairs, called setae, on the toe pads of some geckos is associated…
A: Phylogenic trees are a great tool used by evolution biologists to chart out the progress of…
Q: QUESTION 13 In humans, the presence of facial dimples is dominant to no facial dimples. Out of a…
A:
Q: QUESTION 10 When using an organism's taxonomic name, scientists usually abbreviate by using just…
A: Homo modernus - The Homo modernus (modern man) was born some time in the 780s Homo ferox means…
Q: QUESTION 1 Tigers are much more complex organisms than the single-celled Amoeba dubia, however…
A: The genome size doesn't directly proportional to complexity or body size of an organism.
Q: QUESTION 15 In 1859, Charles Darwin published On the Origin of Species, in which he: O presented the…
A: charles darwin in 1859 published on origin of species the theory was proposed to explain one of the…
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
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- QUESTION 16 You are examining a beloved population of trillium in the backyard of your childhood home. You recall as a child that flowers were bright white. As you return to the population you note that many (but not all) of the flowers have a faint purple vertical stripe in the middle of each petal. List each of Darwin’s postulates and what must be true about your population if it has undergone evolution by natural selection for petal color.QUESTION 38 All of the following are true statements about the Hardy-Weinberg Equilibrium (HWE) principle, EXCEPT: a. HWE concludes that allele frequencies change over time. b. HWE principle assumes that all of the individuals in your population survive and reproduce equally. c. HWE concludes that if given the allele frequencies we can then accurately predict the genotype frequencies in the population. d. HWE principle assumes large, completely isolated populations.Question 13 Natural selection occurs 1. when a new genetic variation occurs that allows individuals to have a reproductive and survival advantage 2. when a factor in the environment alters the genetic information in DNA of all members of a species 3. when a small number of individuals of a population break away and form a new population
- QUESTION 14 Darwin’s finches on the Galapagos Islands are a group of species of finches. One of the major features noted is the variation in beak depth. We spent some time talking about the variation in the ground finch population and how that changed overtime and how that change corresponded to changes in environmental conditions, which affected food item characteristics and abundance. The changes in beak depth over time is a result of… a. natural selection b. gene flow c. sexual selection d. artificial selectionQUESTION 8 Morphological differences are abundant among many species. We make assumptions about why adaptations exist, but to understand whether a specific trait is a adaptive and why, researchers must create experiments that have all the following, EXCEPT: a. replication of each treatment to ensure reliability of results. b. hypotheses that are testable and falsifiable. c. include control groups. d. exceedingly small sample sizes in each treatment group. e. experimental design that enables all full interpretation of differences.Question 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of the homozygous recessive condition, please calculate the following: A) The frequency of the recessive allele. B) The frequency of the dominant allele. C) The frequency of heterozygous individuals. Question 4 Within a population of butterflies, the colour brown (B) is dominant over the colour white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A) The percentage of butterflies in the population that are heterozygous. B) The frequency of homozygous dominant individuals. Question 5 A rather large population of organisms have 396 red-sided individuals…
- Question 18 When fitness is lower at both extremes of phenotypic variation for a trait (e.g., the very largest and very smallest beaks in a bird population) than for the median value in a population, the predominant evolutionary force at work is called Group of answer choices Only 1 correct answer phenotypic selection stabilizing selection directional selection phenotypic choiceQuestion 5 A rather large population of organisms have 396 red-sided individuals and 557 tan-sided individuals. Assume that red is totally recessive. Please calculate the following: a) The allele frequencies of each allele b) The expected genotype frequencies. c) The number of heterozygous individuals that you would predict to be in this population. d) The expected phenotype frequencies. e) Conditions happen to be really good this year for breeding and next year there are 1,245 offspring. Assuming that all of the Hardy-Weinberg conditions are met, how many of these would you expect to be red-sided and how many tan-sided?Question 10 In a population of mountain lions, 9% of the individuals suffer from a disease caused by a recessive allele (aa). Calculate the frequency of both the dominant and recessive alleles. 2. What is the percentage of homozygous dominant individuals and what is the percentage of heterozygous individuals in the population?
- QUESTION 18 Describe: Population aging and increased longevity are creating more multi- and intergenerational families in the U.S. Give two examples of ways in which family structure and family roles are changing because of these changes.Question 1.You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Using that 36%, calculate the following: A) The frequency of the "aa" genotype. B) The frequency of the "a" allele. C) frequency of the a allele, then the frequency is 60%. D) The frequency of the "A" allele. E) frequency of A is by definition equal to p, so the answer is 40%. F) The frequencies of the genotypes "AA" and "Aa." G)The frequencies of the two possible phenotypes if "A" is completely dominant over "a."QUESTION 43 Which of the following statements is true about linkage disequilibrium? a. D= -0.21 indicates that two loci are in greater LD than D= 0.15 b. New alleles are born into a population in LE with the surrounding loci c. Divergent populations that experience a sudden large migratory event will be immediately in LE after mixing. d. Selective sweeps occur randomly along chromosomes as a result of LE and LD alternating at regular intervals.