Alzheimer's is believed to be caused by a dominant allele, however, it continues to persist in populations, even though it is deleterious. Explain why the allele for Alzheimer's persists using an evolutionary justification.
Q: Darwin was the first person to note that evolutionary outcomes are probabilistic, meaning that they…
A: Darwin's Theory of Evolution states that no two individuals species are identical and the acquired…
Q: After the resistant survivors reproduced, the alleles for resistance increased in the population.…
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Q: Which of these statements would be consistent with the changes we see in the frequency of the…
A: Natural selection can cause microevolution (change in allele frequencies), with fitness-increasing…
Q: Please explain how eugenics attempts to alter allele frequencies
A: Ans: Eugenics: It is the process of mating people selectively based on their hereditary traits.
Q: Explain how Darwinian evolution can decrease and increase the frequency of an allele (or a more…
A: Evolution is a natural process that includes several changes in characteristics of a species over…
Q: Instruction: Read the theory below and formulate a hypothesis based on the theory. Design an…
A: Lamarck's theory The theory says that an organism will pass physical characteristics that were…
Q: The eugenic movement was created in the early 20th century by Sir Francis Galton. Its aim was to…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: you (should have) learned that selection alone cannot purge a population of the very last copy of a…
A: The mechanisms that can get rid of the last deleterious allele are random mating and mutation.
Q: Briefly explain all processes that can bring about evolution in populations
A: The population is the group of organisms of a single species that can interbreed. Evolution is a…
Q: Looking to the future, what changes to the frequency of the sickle-cell allele do you envision as…
A: Introduction:- Sickle-cell disorder is an autosomal recessive disorder that's mean If both the…
Q: Describe two problems associated with the Grandmother hypothesis that argue against its validity
A: The grandmother hypothesis is a hypothesis to explain the existence of menopause in human life…
Q: Why are behavioral traits nearly always multifactorial?
A: In Genetics Multifactorial inheritance is when more than one factor causes a trait or health…
Q: In a certain population, there exists a recessive disease which causes death by the age of 5 years.…
A: A gene is a part of the DNA molecule which can transcribed into a meaningful molecule called…
Q: What must be true about the population in order for evolution by natural selection to take place.
A: Evolution can be defined as the change in the characteristics or properties of a species through the…
Q: In a minimum of 5 sentences, expound the quote "Natural selection will not remove ignorance from…
A: Charles Darwin's natural selection is the adaptation and alteration of living species. Individuals…
Q: Why do recessive lethals persist in a population? Provide an example of a recessive lethal allele.
A: Dominance is the ability of an allele to express itself phenotypically both in homozygous and…
Q: As a graduate student, you have been studying the genetics of heat tolerance in a population of…
A: Gene has a vital role in the bodily activities of all organisms. So the study of their specific role…
Q: Certain genes influence the probability of developing Alzheimer’s disease or other conditions that…
A: Alzheimer’s disease is the major cause of dementia in people who are older than 65 years. It is a…
Q: Why is shared DNA information a more reliable indicator of ancestry than shared language?
A: DNA is vital for all living beings – even plants. It is important for inheritance, coding for…
Q: Richa Garg- Biology
A: The law of Hardy-Weinberg states that the frequencies of genotype remain constant in a population…
Q: A form of learning disabilities and speech impairment results from a recessive mutation in the HERC2…
A: Frequency of homozygous dominant genotype AA = p2 Frequency of homozygous recessive genotype aa =…
Q: Why, of all the evolutionary mechanisms, is selection the only one that can result in adaptation?
A: Evolution is the process of change in the characteristic traits of an organism, which are heritable,…
Q: Discuss the nature/nurture controversy as it pertains to intelligence. provide examples as well
A: Nature/ nurture controversey is a topic of debate or discussion in human behaviour. Nature :Human…
Q: Which allele is associated with q in the population genetics models? What is characteristic of this…
A:
Q: Does inbreeding affect allele frequencies? Why or why not? How does it affect genotype frequencies?…
A: Inbreeding is the process of offspring production from the mating or breeding of individuals or…
Q: Sickle cell disease is caused by a recessive allele. Individuals with two recessive alleles usually…
A: Erythrocytes (also known as RBCs) make up the majority of the blood's produced constituents. The…
Q: If the probability of getting a particular t value is calculated to be 0.02 (in other words, the…
A: Introduction :- Null hypothesis states that everything is equal and everything is same.For example…
Q: Fitness is most correctly a technical term what does it mean what two things do you suppose govern…
A: Evolution is the process of heritable change in the characteristics of an organism. Such changes…
Q: On the right is a figure showing the reconstructed route of colonization of a rodent species found…
A: Genetic drift is a change in the frequency of an allele within a population over time. Founder…
Q: The Amish community in Eastern Pennsylvania stemmed from a small closed population of around 200…
A: The bottleneck effect is an evolutionary phenomenon where a population reduces significantly to a…
Q: According to the theory of evolution, why have these changes occurred in horse populations over the…
A: The evolutionary lineage of the horse can be best understood with the paleontology. The history of…
Q: Is the evolution of behavioral traits versus other traits, like morphological trait, likely to be…
A: The behavioral traits is defined as the traits that can be seen due to behaviour of a person, like…
Q: Suppose there is a type of deleterious mutation in a particular human gene that causes death very…
A: There are few important points : We know that heterozygous deleterious mutations can give rise to…
Q: Explain how negative frequency-dependent selection works.
A: The frequency-dependent selection is a part of the evolutionary process through which the fitness of…
Q: Tay-Sachs disease is a recessive genetic disease. Individuals with this disease rarely survive past…
A: Natural selection is the adaptation and alteration of populations of living organisms. Individuals…
Q: Which statement accurately complete the following sentence: “If selection favors a new allele within…
A: "Evolution" is responsible for species variety. The evolution of various species in an area causes a…
Q: How can I apply game theory to evolution?
A: Evolutionary game theory is the application of game theory to evolving populations of biology. It…
Q: Describe how the phenotype of individuals with sickle-cell disease influences how common the HbS…
A: Sickle cell disease (SCD) is an inherited disorder due to homozygosity for the sickle β-globin gene…
Q: Explain how natural selection might be responsible for the PTC taster polymorphism.Why might some…
A: PTC or phenylthiocarbamide in human populations is the compound that is responsible for tasting…
Q: (Anthropology) Explain what is meant by the "molecularization of race".
A: The race is defined as the category of humans who share similar physical characteristics or traits…
Q: Deleterious recessive alleles, such as the allele that causes cystic fibrosis, can persist in a…
A: Harmful or disease causing alleles are often recessive alleles. These can be inherited from…
Q: A common misconception of evolution is that it should naturally eliminate "harmful"…
A: The Mendelian inheritance demonstrated that genes exist in two allelic structures, one of the…
Q: An allele that causes an altered form of hemoglobin occurs in all human populations. However in…
A: Suppose, the normal haemoglobin is produced by HbA allele and defective (sickle shaped) haemoglobin…
Q: As an experiment, Dr. Charles Someone released bunnies on an island where there were no natural…
A: The development of heat resistant bunnie was more assumed but the growth of heat succeptible bunnie…
Q: 'Having red fur is extremely advantageous relative to all other fur color phenotypes in a population…
A: According Darwin there are series of events occurs in the path of evolution. These are…
Q: Please explain why Huntington’s Disease is a dominant allele, but its occurrence is very low in the…
A: Huntington's disease (HD) is an acquired disorder that causes nerve cells (called neurons) in parts…
Q: . If another species of Homo were still alive today, how would Homo sapiens interact with it?
A: Adaption and evolution Evolution is a continuous process of change that occurs over time, adapting…
Q: populations, such as the Japanese, be missing the F374 allele for lighter skin pigmentation? (Hint:…
A: Melanin is a brownish-black pigment which is responsible for tanned skin in sun-burnt people. High…
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- QUESTION 27 Unlike delirium, "dementia" is defined by being a "progressive" disorder, meaning that symptoms get increasingly worse over time, even if change is slow? True FalseQuestion 65SavedWhich of the following observations gives support to the ‘cytokine dysregulation’ theory of causation of depression? Question 65 options: Depression is common in infectious and autoimmune diseases Exposure of the CNS to cytokines induces depressive symptoms Some antidepressants have anti-inflammatory properties All of the above support a role for cytokines in depressionQUESTION 28 True or False? The "plaques and tangles" in brain tissue that define Alzheimer's disease, are made up of fat and cholesterol, as in cases of heart disease? True False
- Question 15 The is a delicates, transparent membrane that closely follows the contours of the brain.Question 70SavedIn addition to helping regulate neurotransmitter levels, what other benefits are observed with antidepressant medications? Question 70 options: A reduction in inflammation and chronic pain An increase in cerebral BDNF levels An increase in synaptic sprouting All of the above are benefits of antidepressantsMonozygotic twins: Question 2 options: a) Share 50% of their genetic material and if one twin has schizophrenia the risk of the other having the illness if 40-50% b) Share 100% of their genetic material and if one twin has schizophrenia, the risk of the other having schizophrenia is 10-15% c) Share 100% of their genetic material and if one twin has schizophrenia, the risk of the other having schizophrenia is 40-50% d) Share 50% of their genetic material and if one twin has schizophrenia the risk of the other having the illness is 10-15%
- QUESTION 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 12 The is a cranial nerve that plays a role in our sense of smell. It was Visible when looking on the underside of the brainQUESTION 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 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 44 Naegleria fowleri, also known as the ‘brain-eating amoeba’, causes deathly amebic meningoencephalitis in humans. However, this pathogen is typically free-living and humans cannot transmit them to any other potential host. What type of virulence evolution hypothesis does this demonstrate? a. Coincidental evolution hypothesis b. Short-sighted evolution hypothesis c. Cost/trade-off evolution hypothesisQuestion 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?