A derived trait ... Group of answer choices A: is something we develop in our lifetime and pass on to our children B: All of these answers are true C: shares characteristics with an ancestral trait, but has adapted differently among different species. D: is the same thing as an analogous trait.
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- Polydactyly – extra fingers or toes–is one symptom of Ellis-van Creveld syndrome. The syndrome is commonly found among the Old Order Amish of Pennsylvania, a population that experiences the “founder effect”. This disease is more concentrated among the Amish because they marry within their own community, which prevents new genetic variation from entering the population. Children are more likely to inherit two copies of the recessive genes leading to the genetic disease. 1. Is this an example of genetic drift? Explain your answer. 2. Would the frequency of the disease be different in a larger population? Explain your answer.In order for a trait to evolve via natural selection, which of the following must be true regarding the trait? (this is a multiple answer question - so select all correct) Group of answer choices There must be variation in the trait. The trait must make the organism survive longer than organisms with different traits. The trait must confer a reproductive advantage on the bearer of the trait. The trait must be heritable. The trait does not necessarily need to be passed down to offspring.GWAS refers to... Group of answer choices An experimental design only used in humans. A method used in genomics, not an experimental design. An experimental design comparing the genome sequence of many unrelated individuals who differ based on some trait. An experimental design comparing the genome sequence of a few related individuals who differ based on some trait.
- Which of the following statements about ADAPTATION are TRUE? (Identify ALL that are TRUE) Select 3 correct answer(s) Question options: Adaptations include PHENOTYPE changes within a species or population, in response to changing environment Adaptations include changes in GENE EXPRESSION within individuals, making individuals better suited to changes in environmental conditions Adaptations include GENOTYPE changes within a species or population, making individuals better suited to a particular environment Adaptations include GENOTYPE changes within a species or population, in response to changing environment Adaptations include PHENOTYPE changes within an individual, making that individual better suited to a particular environmentImagine that genetic technology advances to the point where the genetic profile of an individual can be easily obtained, and that we have a full understanding of how genes interact to influence our health. Based on this genetic information alone, how reliably do you think we would be able to predict a person's chance of getting a specific disease? Where do you think this type of genetic profiling would lead with respect to selection of offspring or genetic superiority?.. Nowadays, newborn babies are required to be tested for phynylketonuria (PKU), an autosomal recessive genetic disorder. If untreated, individual homozygous for PKU suffer mental retardation. In a recent year, 4 PKU babies were detected out of 126,000 tested. Assuming Hardy-Weinberg conditions, what is the frequency of the PKU gene in this population (Give your answer in decimal number with 3 decimal places)?
- Which of the following is true? Question 10 options: a) A person's phenotype is a trait that is the result of the environment only. b) A person's phenotype is a trait that is the result of genes only. c) A person's phenotype is a trait that is the result of genes and the environment. d) A person's genotype is a trait that is the result of genes and the environment.Which of the following is false? a. The color of a fruit fly's eyes is a trait. b. The instructions for producing a trait are found in a gene that controls the physical expression of that trait. c. A gene can have different alleles that can specify different traits, such as red or brown eye color. d. The trait is influenced by the gene, independent of the environment. e. By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced."The use or disuse of a trait explains why it evolved or was lost." Please explain in detail why this is false and a misconception.
- Remember that understanding is explanations more than facts. Definitions of phenotype, genotype, allele, gene, microevolution, macroevolution Know that in humans, most of the genetic variation is observed within populations, and know why that is. Know the 4 processes of evolution (3 neutral + natural selection) Know that evolution isn't progressive and doesn't necessarily lead to more complexity Know that evolution can lead to traits that decrease survival (ex: sexual selection) Know that quantitative traits are generally influenced by (i) many genes, each having a small effect on the trait value; and (ii) the environment What is F1 like when you cross 2 homozygotic lines of peas of different colors? What is F2 like when you cross F1 individuals (remember what 9:3:3:1 is about) Know what genetic dominance is about Definitions of chromosome, nucleus, mitosis, meiosis, crossing over How many chromosomes in humans? How many pairs of chromosomes? Know and apply Hardy-Weinberg's equation…Choose four of the following terms below and 1) provide a definition of the term (in the context of our course), 2) an example of the term, and 3) explain why the tem is important/significant. (3 points each, 12 total) Adaptability Stressor Cline Phenotypic plasticity Senescence Hard hammer technique Hyperrobust chewing complex Secular trend Zoonosis Anagenesis Derived trait Growth Adaptive radiation For the toolbar, press ALT+F10o (PC) or ALT+FN+F10 (Mac). В Paragraph A * D白Q x X2 Arial 10pt QUESTION 60 Explain how understanding genetics and the forces of evolution, non-human primate behavior and biology, and our evolutionary history can help us understand human biology today. Give specific examples to illustrate your answer.A. Explain which force of evolution is seen here by a hybrid bird landing on an island that is not its home and breeding with the indigenous population. B. Explain which force of evolution randomly chooses an individual from a larger gene pool to form a new, smaller population with less genetic variety.