The law that states genetic traits are inherited independently of one another is called: O random genetic drift O genetic evolution Ogenotype independent assortment
Q: Can a change in a protein's shape affect a trait? Why or why not? O Yes, because proteins are the…
A: Proteins are the functional assets of the cell. The information stored in the DNA is translated into…
Q: The total number of geneotypes in a population is called a.Genetic drfit b.Gene pool c.Phenotypes…
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Q: A phenotype is Oa group of organisms from the same generation. O the way a species reproduces O a…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Explain this apparent paradox: Scientists discuss evolution in terms of genotype fitness (the…
A: Population genetics is the complete set of the genetic information in all individuals within a…
Q: Which of the following factors increase the incidence of an autosomal recessive trait in a…
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Q: Height of the people is controlled by several pairs of genes, which interact by type of polymeria…
A: Height and other similar features are controlled not just by one gene, but rather, by multiple…
Q: Which of the following is most accurate? O phenotypes code for genotypes recessive alleles tend to…
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Q: The biological selection of a particular allele for a trait to be passed to offspring has nothing do…
A: The above statement os based on the Mendels law of inheritance. Mendel was a biologist who studied…
Q: Matching Terms: Match the term from the list at right that is best described by the following…
A: We are answering first question. For other questions pls repost.
Q: Mendel's work involved working with pea plants, which have many varieties. Although Mendel's work…
A: Mendel's work involved working with pea plants, which have many varieties. Although Mendel's work…
Q: A responsible for anterior morphology in an organism is inherited as maternal effect gene. It has…
A: A maternal effect occurs when an organism's phenotype is influenced not only by its own environment…
Q: Genetic drift is most likely to affect:a. every population, regardless of sizeb. small populationsc.…
A: Evolution can be defined as a process by which organisms change their characteristics over time. It…
Q: All genetic variation is ultimately due to mutation O True O False
A: Genetic variation is diversity in gene frequencies. In a species genetic variation is difference in…
Q: In natural populations, most genes area. polymorphic.b. monomorphic.c. recessive.d. both a and c.
A: The change in natural population is a positive change when the live births are larger than deaths…
Q: Inbreeding in populations leads to which of the following? Oa higher rate of genetic drift an…
A: The mating of organisms with closely related ancestors is known as inbreeding. It contradicts the…
Q: Genetic equilibrium means that ... O the distribution of alleles is not changing from generation to…
A: A Gene pool is a set of all genes in a population. Natural selection is an evolutionary theory…
Q: Which of the following is NOT required in order for natural selection to occur in a population? O…
A: Natural selection is a natural process by which organisms better adapt in the environment tends to…
Q: Which of the following is correct regarding the process ofevolutionary change?a. an adapted…
A: Adaptation is a feature that enables an organism to survive in extreme conditions and reproduce in…
Q: When artificial selection is practiced over many generations, it iscommon for the trait to reach a…
A: A gene is a basic structural and functional unit of heredity. Artificial selection between different…
Q: Which of the following is true of both analogous and homologous traits? Both indicate the…
A: Homologous structures suggest that comparable selected pressures can produce similar adaptations,…
Q: O there are always more than two alleles for a given character in a population O the heterozygote is…
A: Codominance: It is the type of inheritance seen where both the alleles of a gene when present in…
Q: What is an allele? One of a number of alternate forms of a DNA sequence at a particular genetic…
A: Karyotype is a full set of chromosome in a particular species. A gene is section of chromosome which…
Q: Which of the following would not be considered a polymorphism? O A) Phenotypic traits that vary in…
A: The external characteristics of an individual is known as phenotype which is controlled by genes. In…
Q: Which of the following defines a genotype? The particular set of alleles that is carried in an…
A: answer- Genotype is a particular set of alleles that is carried in an individual’s chromosomes.
Q: True or False, genetic drift is a significant mechanism of evolutionary change i populations
A: Changes that a species accumulate over the years lay the foundation of a species through evolution.…
Q: Fill in the Gaps Dominant and Recessive Genes Keriete the transmission of dominant and recessive…
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Q: Transmission of traits in a population and determines the extent of the environmenta effect to the…
A: The transmission of alleles in the population is depends on different factors. The expression of…
Q: A cleft (dimpled) chin (C=cleft chin, c=no cleft chin) is caused by dominant allele. Two parents…
A: Here, C=cleft chin, c=no cleft chin P=prominent chin, p=less prominent chin A prominent chin is…
Q: How can each of the following be used in determiningthe role of genetic and/or environmental factors…
A: The genes are the components of the genome that direct specific functions in the cell. Their…
Q: e. Why can’t we learn everything about a single trait with a genome-wide association study?
A: Genome-wide association (GWS) study is an observational study to assess the relationship between…
Q: A wild population of pea plants has two alleles forflower color in its gene pool. A dominant allele…
A: A population's gene pool is the total number of copies of all the genes present in the population.…
Q: type of epistasis appears to be operating here? elect one: D a. Duplicate Recessive Epistasis O b.…
A: There are various types of epistatic gene interactions and the F2 Ratio obained is mentioned- 1)…
Q: Albinism is a condition in which pigmentation islacking. In humans, the result is white hair,…
A: Albinism is a recessive autosomal disorder. The individuals affect the disorder in homozygous…
Q: You have an experimental animal that you know has the genotype Aa for a rare allele in the…
A: Back cross and test cross are two types of genetic crosses introduced by Gregor Mendel. In a test…
Q: lthough individuals are selected for or against by natural selection, it is populations that…
A: Evolution is the process of a species' features changing over numerous generations through natural…
Q: One similarity between natural selection and genetic drift is that both events... * Are based…
A: Genetic Drift and Natural Selection are both methods of Evolution. Genetic drift is a random process…
Q: Which of the following is defined as an individual’s observable traits? Allele Phenotype…
A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…
Q: Charles Darwin developed his theory of natural selection without understanding the nature of genetic…
A: Charles Darwin gave one of the most solid theory of evolution He proposed that the natural…
Q: If vestigial traits are no longer useful to an organism, why don't they evolve out of the…
A: Vestigial organs are those structures that are present in the body which had some sort of use for…
Q: A forward mutation is O A. a mutation that changes any allele to another allele O B. a mutation that…
A: Mutation may be a modification within the deoxyribonucleic acid at a selected locus in associate…
Q: When is having a homozygous dominant genotype for Tay Sachs harmful? O When tuberculosis is…
A: Tay sachs Disease: It occurs when a child inherits a flaw in the HEXA gene from both parents. The…
Q: For a gene with dominant allele "A" and recessive allele "a," what proportion of the offspring from…
A: EXPLANATION Given, dominant allele "A" and recessive allele "a," and AA x Aa cross would be…
Q: Which of these evolutionary processes is/are random in respect to fitness? All of the above Gene…
A: The factors responsible for evolutionary change are: mutation migration genetic drift recombination…
Q: Oftspringo which have aditterent Lof traits than either parent re ftered to as : parental ty pes 3.…
A: A variable form of a gene is known as an allele.
Q: Which of the following is NOT an example of a multifactorial trait? O A trait influenced by four…
A: Genetic inheritance occurs when the genetic information related to the growth, metabolism, survival,…
Q: Alleles are O found at genetic loci. always dominant or recessive. alternative forms of a…
A: Each gene can exist in different forms or alternative forms known as allele and different alleles…
Q: is genetic instructions from one generation to the next generation. Blood O Heredity O Natural…
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Q: Which of these is needed for natural selection to occur? O genetic variation asexual reproduction…
A: Genes are the basic structural and functional units of heredity and are made of DNA…
Q: they are governed by more than one genetic locu: « Previous they are the product of a single gene…
A: Mendelian Traits are those traits which follow Mendel's rules of only 2 possible versions of a gene…
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- QUESTION 3 Darwin's theory of natural selection explains: O The way life began. O The way evolution works at the genetic level. The way dinosaurs became extinct. O That traits within a breeding population that are adaptive to specific environmental circumstances become more numerous in that population over time.Question 23 What is the MOST LIKELY explanation for why there is variation in aging across different species? O The strength of selection is determined by aging O Trade-offs only apply to some species O Mutation accumulation theory applies to some species while antagonistic pleiotropy applies to others O Different species suffer different levels of background (i.e., extrinsic) mortalityColor blindness in humans is caused by an X-linked recessive allele. Ten percent of the males of a large andrandomly mating population are color-blind. A representative group of 1000 people from this population migrates to a South Pacific island, where there are already1000 inhabitants and where 30 percent of the males arecolor-blind. Assuming that Hardy–Weinberg equilibrium applies throughout (in the two original populationsbefore the migration and in the mixed population immediately after the migration), what fraction of malesand females can be expected to be color-blind in the generation immediately after the arrival of the migrants?
- Some people can taste the bitter compound phenylthiocarbamide while others cannot. This trait isgoverned by a single autosomal gene; the allele fortasting is completely dominant with respect to the allele for nontasting. Among 1707 Hawaiians tested forthe ability to taste, 1326 tasters were found. Assumingthat the population is at Hardy-Weinberg equilibriumfor this gene and that mating is purely random:a. What are the allele frequencies for the tasting alleleT [= (p)] and for the nontasting allele t [= (q)]?b. What are the genotype frequencies in the population?c. Of all the matings in the population, what proportion will be between two nontasters?d. Of all the matings in the population, what proportion will be between a taster and a nontaster?e. Of all the matings in the population, what proportion will be between a taster male and a nontasterfemale?f. What proportion of all of the progeny produced byall matings between a taster male and a nontasterfemale will be nontasters?g. Of all…Assuming that the mutation rate is µ/gamete/generation andthe population size is N diploid individuals, what is the numberof new mutations introduced into the population each generation?Different species of crickets have distinct songs, andthey use these songs for mate recognition. Researcherscrossed two species of Hawaiian crickets (Laupala paranigra and L. kohalensis) whose songs are distinguishedby pulse rate (the number of pulses per second; Shaw etal., Molecular Ecology 16, 2007, 2879–2892.) Then, theymapped QTL in the F2 population derived from thiscross. Six autosomal QTL were detected. The mean traitvalues (pulses per second) at the three genotypic classesin the F2 for each QTL are shown in the table below,where P indicates the L. paranigra allele and K indicatesthe L. kohalensis allele.a. Calculate the additive (A) and dominance (D) effectsand the D/A ratio for each of the six QTL.b. Which of these QTL shows the greatest amount ofdominance?c. Which of these has the largest additive effect?d. The mean pulse rate for L. kohalensis is 3.72, and it is0.71 for L. paranigra. Do all six QTL act in the expecteddirection with the L. kohalensis allele conferring a…
- 180- 170- Figure 1. For each of more than 200 human societies, the average height of the men is plotted against the average height of the women. The diagonal line shows where the points would fall if men and women were of equal height. From Rogers and Mukherjee (1992). 160- 150- 140- 140 150 160 170 180 Female stature (cm) tionry ysin.e 2. Using an evolutionary approach, explain the evolution of sexual dimorphism in height among men and women, Is this difference due to natural or sexual selection? How do know? you Male stature (cm)Pick any trait you like in any species of wild plant or animal. Thetrait must somehow vary among different members of the speciesNote: When picking a trait to answer this question, do not pick the trait of wing color in butterflies.A. Discuss all of the background information that you alreadyhave (from personal observations) regarding this trait.B. Propose a hypothesis that would explain the genetic variationwithin the species. For example, in the case of the butterflies,your hypothesis might be that the dark butterflies survive betterin dark forests and the light butterflies survive better in sunlitfields.C. Describe the experimental steps you would follow to test yourhypothesis.D. Describe the possible data you might collect.E. Interpret your data.Question 20 How do new species arise, according to the theory of natural selection? when an old species goes extinct, a new species arises to take its place ) individuals in a population pass on new traits they have acquired during their lifetimes (3) two new species spontaneously branch off from ancestor populations from time to time if a population is reproductively isolated in a sufficiently different ecosystem for an extended period of time, it will develop adaptations that will eventually render it incapable of interbreeding with its host population
- When artificial selection is practiced over many generations, it iscommon for the trait to reach a plateau in which further selectionhas little effect on the outcome of the trait. This phenomenon isillustrated as shown. Explain why it occurs.EVOLUTION CONNECTION Over the past half century, therehas been a trend in the United States and other developedcountries for people to marry and start families later in lifethan did their parents and grandparents. What effects mightthis trend have on the incidence (frequency) of late-actingdominant lethal alleles in the population?The original source of new alleles, upon which selection operates,is mutation, a random event that occurs without regard to selectionalvalue in the organism. Although many model organismshave been used to study mutational events in populations, someinvestigators have developed abiotic molecular models. Soll et al.(2006. Genetics 175:267–275) examined one such model to studythe relationship between both deleterious and advantageousmutations and population size in a ligase molecule composed ofRNA (a ribozyme). Soll found that the smaller the population ofmolecules, the more likely it was that not only deleterious mutationsbut also advantageous mutations would disappear. Whywould population size influence the survival of both types ofmutations (deleterious and advantageous) in populations?