Q: Under what circumstances might a lethal dominant allele persistin a population?
A: A single type of wild allele is not possible to live or to do any usual activities. This type of…
Q: So how can individual selection result in low reproductive rates or short life spans?
A: Individual selection is totally depends upon their adaptations. Selection is the process of…
Q: If a gene with two alleles, F and f, evolves so that the frequency of the recessive f = 1, what is…
A: The Hardy-Weinberg equilibrium is a rule expressing that the hereditary variation in a populace will…
Q: How do geneticists detect the presence of genetic variation as different alleles in a population?
A: GENETIC VARIATION:- This is defined as the differences between the population living in the…
Q: What are outbreeding?
A: The material used to store genetic information in the mitochondria or nuclei of an organism’s cells…
Q: . If the frequency of the homozygous recessive genotype is 0.81, what is the frequency of the…
A: Hardy-Weinberg principle states that in a population, the allelic frequency of all the gene pool is…
Q: What is a rare allele in the population?
A: An allele can be defines as the variant form of same gene. The character which is commonly found in…
Q: Why is the elimination of a fully recessive deleteriousallele by natural selection difficult in a…
A: Sudden heritable changes that occur in sequence of an organism resulting in the production of an…
Q: Explain how harmful recessive alleles can persist in populations, even though they prevent…
A: Sometime natural selection conserves multiple alleles of a gene in a population at a stable…
Q: WHAT CAN YOU SAY ABOUT THE FREQUENCY OF APPEARING THE HOMOZYGOUS DOMINANT, HETEROZYGOUS DOMINANT AND…
A: A collection of genes in a individual is known as genotype. Gene contains two alleles inherited for…
Q: How can natural selection maintain harmful alleles in a population?
A: The process in which a population of living organisms adapts to their environment by certain changes…
Q: 900 bacteria had two recessive alleles out of a total of every 10,000 bacteria. Using the…
A: To determine The frequency of the recessive and dominant alleles using the Hardy-Weinberg…
Q: Why does stabilizing selection decrease geneticdiversity?
A: Natural selection may use genetic variation to increase or decrease the number of alleles already…
Q: Are dominant traits always more frequent in a population than recessive traits? Is that what…
A: Humans carry 2 copies of each gene on 2 copies of chromosome. Hence the different versions of the…
Q: The ratio for offspring in a specific population is .35 Homozygous AA, .20 Heterozygous Aa, .45…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: What are inbreeding?
A: Breeding is a process of sexual reproduction that generates offsprings in plants or animals. There…
Q: Why does sickle-cell anaemia persist in the human population when it is believed that the harmful…
A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…
Q: Why is negative selection important?
A: The cells are the primary unit of life. Based on the number of cells an organism may be prokaryotic…
Q: if the recessive allele r is lethal, what genotypes will natural selection benefits ?
A: Recessive alleles are nearly tough to completely eradicate from a population since both AA and Aa…
Q: What is the ultimate cause of variation in populations?
A: Genetic Variation in population Genetic variation refers to differences in the genetic makeup of…
Q: If the genome-wide Fst for humans globally is 0.11, do you think this locus is currently or has been…
A: Abstract Genome-wide association studies (GWAS) have evolved over the last ten years into a…
Q: What determines how often a phenotype occurs in a population?
A: Population is the group of individuals that are present in same geographical area and are interbreed
Q: What is the expected genotype frequency of the homozygous recessive genotype under the…
A: Introduction: Hardy-Weinberg equation Hardy-Weinberg equation Theorem deals with sexually…
Q: If an X-linked recessive trait is present in 4 percent of the males in a population with random…
A: Traits are the characteristics that are passed down from the parents to their offsprings. Each trait…
Q: How did human farming influence the evolution of the sickle cell allele in human populations?
A: Sickle cell anemia is a genetic disease which is caused due the inheritance of the disease from the…
Q: Can the frequencies of all genotypes in a population be determined directly with respect to a locus…
A: The dominant allele causes a dominant phenotype in an individual and is composed of one copy of any…
Q: Will a recessive allele that is lethal in the homozygous condition ever be completely removed from a…
A: Natural selection favors the phenotype that is favorable and often the harmful alleles are…
Q: When an allele is dominant, why does it not alwaysincrease in frequency to produce the…
A: Dominance is the inheritance condition where one allele or character is dominant over the other and…
Q: Spondylocostal dysostosis is an autosomal recessive disorder with characteristics including short…
A: Introduction : Hardy Weinberg principle states that the allele frequencies in a population are…
Q: How does a heterozygous organism differ from a homozygous organism in terms of the alleles they…
A: Heterozygous organisms have two different alleles while homozygous organisms have two same alleles…
Q: Which disappears more rapidly from a population, a deleterious dominant allele or a deleterious…
A: Alleles can be described as alternative forms of a gene. A dominant allele can be expressed in a…
Q: If 98 out of 200 individuals in a population express the recessive phenotype, what percent of the…
A: * It is given that 98 individuals out of 200 individuals in a population shows recessive phenotype.…
Q: Explain where, in the world, the Hbs allele is mostly likely to be prevalent and why the allele…
A: Hbs allele is an allele for Sickle Cell anaemia it is a genetic disease in which the anaemia is…
Q: It is said,that the harmfull alleles get eliminated from population over a period of time,yet sickle…
A: Sickle cell anemia is an inherited disorder in which the erythrocytes, which carry oxygen to all the…
Q: Why is inbreeding not advisable?
A: Inbreeding is the process of mating closely related individuals like brother and sister, father and…
Q: Are polymorphisms common or rare in natural populations?
A: Polymorphism is an intermittent genetic variation bringing about the event of a few unique…
Q: What causes allele frequencies to differ between biological populations?
A: Allele frequency Allelic frequency can be defined as relative frequency of an allele at a…
Q: Is it easier for selection to remove a deleterious recessive allele from a randomly mating…
A: Evolution is the change in the characteristics of the individual over several generations. Natural…
Q: How do we know how much genetic variation is in a population?
A: To find: How much genetic variation is in a population
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: What impact do cases a multiple alleles have on the number of kinds of phenotypes displayed in the…
A: Having more than 1 or 2 alleles for a trait can greatly increase the number of phenotypes, depending…
Q: Why is mutation important to evolution if it is the microevolutionary force that generally has the…
A: Microevolution is the evolution that acts on a small population or in a single species and it is…
Q: what is the effects of inbreeding on a population?
A: Inbreeding refers to a phenomenon where individuals within a particular population mate with one…
Q: Andalusian chickens with the genotype CBCB are black, those with the genotype CWCW are white, and…
A: Allele is defined as one of two or more alternative form of a single gene. Alleles of a given gene…
Q: For EACH of the observed traits, which is most frequent in our class population, the dominant…
A: Frequency is the number of occurrence of repeating events during a particular period of time. Most…
Q: What are considered significant factors in maintaining the surprisinglyhigh levels of genetic…
A: Genetic variation is a benchmark of the genetic differences that exist within a population. The…
Q: If the frequency of the homozygous recessive genotype is 0.81, what is the frequency of the…
A: In the absence of disrupting events, the Hardy-Weinberg equilibrium states that genetic variation in…
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: Hardy Weinberg equilibrium in a population refers to Group of answer choices equal numbers of…
A: Hardy Weinberg principle is basically proposed so that it can be used to measure the frequency of…
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- How is it possible that a lethal recessive gene can be maintained in a population? Give an example.Select all true statements about recessive alleles. 1) Recessive alleles can be hidden by dominant alleles 2) Recessive alleles are weaker than dominant alleles 3) It is possible for a recessive allele to be the most common allele in a population 4) Recessive alleles code for functioning proteins 5) Recessive alleles usually code for proteins that do not function 6) Dominant alleles can mask the presence of a recessive alleleThe agouti gene determines coat colour in mice. Heterozygous mice have yellow coats, while homozygous dominant mice have black coats. However, having two copies of the recessive alleles is lethal. In a population of 2 000 mice, 1 082 mice have black coats. a) Calculate the frequency of each allele. Show all your work and express your answer as a value between 0 and 1 rounded to two decimal places. b) What percentage of the mouse population is expected to be carriers of the lethal allele? Show all your work and express your answer rounded to one decimal place. c) How many mice will die during fetal development? Show all your work and round your answer to the closest whole number.
- Suppose that frequency of a recessive phenotype, white fur color, is about 0.16 (16%) in the local squirrel population. a) What is the frequency of the recessive allele (w)? b) What is the frequency of the dominant allele (W)? c) What percentage of the local squirrel population are not white, but are carriers of the recessive white allele? A/ A/In a population of mountain lions, 9% of the individuals suffer from a disease caused by a recessive allele (aa). A) Calculate the frequency of both the dominant and recessive alleles. B) What is the percentage of homozygous dominant individuals and what is the percentage of heterozygous individuals in the population?The fraggles are a population of mythical, mouselike creatures that live in underground tunnels and chambers beneath a large vegetable garden that supplies their food. They can reproduce VERY quickly! Of the fraggles currently in this population, 372 have green fur and 182 have gray fur. Green fur is controlled by a dominant allele F and gray fur by a recessive allele f. a) What is the frequency of the gray allele f? b) What is the frequency of the green allele F? c) How many fraggles are heterozygous (Ff)? d) How many fraggles are homozygous recessive (ff)? e) How many fraggles are homozygous dominant (FF)?
- The allele for long whiskers in mice is dominant over the allele for a short whiskers. In a population of 500 individuals, 25% show the recessive phenotype. How many mice would you expect to be homozygous dominant and heterozygous for the trait?Select all true statements about dominate alleles. A) Dominant alleles are stronger than recessive alleles B) Dominant alleles are always the most common allele in a population C) Dominant alleles can be hidden D) Dominant alleles code for functioning proteins E) Dominant alleles can mask the presence of a recessive alleleExplain the Decrease in the frequency of a recessive lethal allele over time?
- In a population that meets the Hardy–Weinberg equilibrium assumptions, 81% of the individuals are homozygous for a recessive allele. What percentage of the individuals would be expected to be heterozygous for this locus in the next generation?Within a large population, it is unusual for a single gene to have more than two different alleles (versions). A) True B) FalseThe fraggles are a population of mythical, mouselike creatures that live in underground tunnels and chambers beneath a large vegetable garden that supplies their food. They can reproduce VERY quickly! Of the fraggles currently in this population, 372 have green fur and 182 have gray fur. Green fur is controlled by a dominant allele F and gray fur by a recessive allele f. d) How many fraggles are homozygous recessive (ff)? e) How many fraggles are homozygous dominant (FF)?