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: A survey of Canadian males was performed in during the 1980s. 52% of adult males smoked. The…

A: Lung cancer is a type of cancer that starts in the lungs' cells. It is one of the most common…

Q: Imagine a population (with individuals of all possible genotypes) whose food supply is sometimes…

A: Humans possess two types of chromosomes: autosomes and sex chromosomes. Some of the physiological or…

Q: ONTARIO 100 100 100 100 100 Ontario Mich Lake Erie NY 90 90 90 90 90 N = 63 N = 64 N = 16 N = 214 N…

A: Migration is a phenomenon which is used to describe movement of individual organisms from one place…

Q: True or False

A: Answer: A.)Genetic variation is an important force in evolution as it allows natural selection to…

Q: Discuss factors that lead to genetic variations in a population by using the Hardy-Weinberg Law that…

A: Fee important terms are as follows which should be kept in mind. Variation is caused by characters…

Q: Scientists studying orangutans on the Indonesian islands of Borneo and Sumatra recently found that…

A: Change in the heritable traits of biological populations over multiple generations is referred to as…

Q: Propose a hypotheses for this observation: In a study conducted by an undergraduate student, he…

A: The possibility of further investigation, verification, or answering a scientific inquiry by…

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: The table shows the risk of inheriting the genetic disorder cystic fibrosis across different ethnic…

A: The lung and digestive tract are affected by cystic fibrosis as an inherited condition. The body…

Q: The results of QTL mapping studies for human diseases tend to show that disease-causing alleles are…

A: The classical Mendelian traits are quantitative in nature which means the traits which are easily…

Q: Sir Francis Galton (1883) developed the concept of eugenics, advocated the encouragement, through…

A: Francis Galton, derived the term “eugenics” from the Greek word eugenes, meaning “good in birth” or…

Q: An island of the Galápagos archipelago is home to a medium ground finch that subsists mainly by…

A: The theory of the inheritance of acquired characteristics proposed by French naturalist…

Q: Please read the scenario below and answer the question (in bold) that follows: Spider-Man and…

A: To determine the percentage of their offspring that will not be able to spin webs but will be able…

Q: Some genetic disorders are caused by autosomal recessive alleles. Many such alleles are recessive…

A: Some phenotypic characters are controlled by single gene. Some are controlled by multiple genes. In…

Q: Define biological determinism and explain how the classifications of humans that resulted from this…

A: Biological determinism, also known as genetic determinism, is a theory that suggests the genetic…

Q: Which of the following is NOT a valid evolutionary explanation for why aging (or senescence)…

A: An organism begins to weaken and frailty as it ages, which is a natural occurrence. Once a person…

Q: A disorder that leads to nearsightedness is caused by a genetic mutation. On a small island in the…

A: The mechanisms of evolution doesn't operate independently in natural populations. The consequences…

Q: Albinism is rare in most human populations, occurring at a frequency of about 1 in 20,000 people.…

A: An allele is a variant form of a gene that exists at a specific location on a chromosome. Genes are…

Q: Please read the scenario below; then, answer the question (in bold) that follows. Spider-Man and…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Identify each of the following as an example of allele, genotype, and/or phenotype frequency: A.…

A: Allele frequency is defined as the number of individual alleles of a certain type divided by the…

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: What is the frequncy of the recessive allele and what is the probability a couple are both carriers…

A: Tay−−Sachs disease is an autosomal recessive neurological disorder that is fatal in infancy. Despite…

Q: Goswami disagrees with the Darwinian concept of canalized behavior. What are his main criticisms of…

A: The Darwinian concept of canalized behavior refers to the idea that certain behaviors are innate and…

Q: Question 2: According to the generaized selection model, the change in allelic frequency due to the…

A: The question is asking us to create predictions about the alteration in allelic frequencies in two…

Q: Alkaptonuria is a recessive autosomal genetic disorder associated with darkening of the urine. In…

A: a) The population is expected to be in Hardy-Weinberg equilibrium. The people who are affected by…

Q: Describe the significance of sickle cell anemia to understanding evolution and the role of culture…

A: Sickle Cell Disease It is an autosomal recessive disorder. It causes symptoms like anemia, joint…

Q: With directional selection against the A₁ allele we can predict that it will either become rare or…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: Answer true or false for each of the following statements: a. Inbreeding tends to reduce the ability…

A: The following statements require a true or false response, and each statement has its own context…

Q: Imagine that genetic technology advances to the point where the genetic profile of an individual can…

A: Each and every live organism on earth contains gene, it may be DNA or RNA, or both. This gene…

Q: n experimental design, researchers often( but not always ) will include 2types of controls. These…

A: There are two groups of experiment 1. Experimental and 2. Control Experimental is the group of…

Q: Read the following statements CAREFULLY: I. Dorso-ventral patterning in fruit flies is established…

A: 1 Statement is False.  Because dorsal-ventral patterning in fruit flies is determined by Gurken…

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: To describe: The reason that the selection of phenotypes affect the evolution of genotypes.

A: The term "evolution" was coined by a geneticist. A change in the allele frequencies of a gene pool…

Q: Please read the scenario below and answer the question (in bold) that follows: Spider-Man and…

A: The answer is (c). Spider-Man can produce SS, SC, sC, and sc gametes.Spider-Man can produce four…

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: Is Central Dogma  universal phenomenon? and Does Central Dogma always apply?

A: Introduction: The process by which the directions in DNA are turned into a functioning product is…

Q: In response to extreme starvation, some bacterial cells undergo programmed cell death (PCD). In E.…

A: A species of bacteria called Escherichia coli, or simply E. coli is frequently found in the…

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…

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.