If recessive alleles were beneficial, would this promote the evolution of selfing? Describe why or why not.

Q: Explain the concept of Sexual Selection in humans ?

A: Reproduction is the process by which an organism creates more of its own progeny. Reproduction is…

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: On which type of alleles does natural selection take the longest to act on? -recessive alleles…

A: The theory of evolution by natural selection suggests that due to the dissimilarities in their…

Q: A population of frogs in the species Goofus frogus (I made this up) are living in a valley within a…

A: Given- The frog color is controlled by 1 gene.  GG genotype frogs are blue Gg genotype  frogs are…

Q: How can natural selection favor different phenotypes at different times?

A: Introduction  Evolution is the key process which regulates the survivability and continuity of…

Q: explain how natural selection works and how it affects populations?

A: Introduction Evolution is the key process which regulates the survivability and continuity of…

Q: Answer in two to three sentences How does epigenetics impact the nature vs. nurture debate?

A: Epigenetic changes are changes in gene expression that are passed on to cells or future generations,…

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: Crawfish are shelled organisms that live in shallow freshwater rivers. They can have antennae of…

A: Offsprings can end up with the traits that are different from the traits of their parents. The…

Q: Is it true that natural selection allows only the better alleles to be passed onto the next…

A: Darwin stated the theory of natural selection in which he gave the following arguments: First, he…

Q: Give an EXAMPLE of each genetic term to tell the difference of the terminologies. a. Gene and allele…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: All genetic differences between all the individuals of all the different species are a result of

A: Genetic variation is responsible for the formation of all the different types of species that are…

Q: Briefly explain why each of the following theories is incorrect: a. Pangenesis b. Preformationism c.…

A: Hi! Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Explain why evolutionary biologists monitor selectively neutral polymorphisms as molecular clocks

A: Sudden heritable changes that occur in sequence of an organism resulting in the production of an…

Q: How do allele frequencies change if the two homozygotes have equal fitness, but heterozgotes have a…

A: Natural selection can cause microevolution (change in allele frequencies), with fitness expanding…

Q: Explain why genetic drift is more powerful in small populations

A: Genetic drift is a change in a breeding population's allele frequency, and is one of the four…

Q: Allelic diversity affects individual variability. What effect is a bottleneck likely to have on a…

A: The bottleneck effect is a phenomena that occurs when a population's gene pool is suddenly reduced…

Q: "Nonrandom mating does not itself directly change allele frequencies" Explain this ?

A: Allele frequency can be defined as the percentage calculated on basis of the number of copies of the…

Q: What species of animal has a trait that has higher repeatability than heritability

A: The extent to which variation among individual people leads to overall variation in a group is known…

Q: What happened to the recessive alleles in this following scenarios: A. Complete zygotic selection…

A: Selection (s) against the recessive is relative compared to the dominant types. The proportion…

Q: Give an example of a variable human trait that increases the fitness of the possessor. Give an…

A: (a) One of the variable traits that increases the fitness of the possessor is adaptation.

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: 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: Describe an ancient hypothesis that explains how traits are passed from parents to offspring. What…

A: Answer: Introduction: Evolution is the development by which populations of organism’s changes over…

Q: Explain in your own words why alleles are found most often in heterozygotes when an allele is rare,…

A: If we consider the influence of natural selection on the frequencies of new mutation, we would found…

Q: Evolutionary Thought: answer the question in essay form. Explain the differences between allele,…

A: Genetics is the study of organisation, expression and transfer of heritable genetic information.…

Q: In a population, there are two different alleles for a gene. D is dominant and d is recessive. If…

A: Introduction: Alleles are a pair of genes that control the same trait and are found in a specific…

Q: The frequency of dizygotic twinning is higher in older women. Can you think of some possible…

A: Dizygotic twinning occurs when two egg cells are fertilized by two separate sperm cells. Dizygotic…

Q: f heredity is the passing on of traits from arents to their offspring, how is evolution possible?

A: In simple words, evolution is the process of gradual changes taking place over generations…

Q: Explain how Darwin evolution can decrease and increase the frequency of an allele(or more complex…

A: Charles Darwin gave theory of evolution by natural selection. Natural selection is the process by…

Q: Why are only inherited variations important in the evolutionary process? Explain your answer.

A: Evolution is a process that causes changes in a population's genetic material through time.…

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: What is the importance of detecting common ancestry?

A: "Descent with modification," as well known as the way in which Darwin defined it, is the theory that…

Q: Give an EXAMPLE of each genetic term to tell the difference of the terminologies A. Gene and Allele…

A: Introduction: Genetics is the study of genetic composition, heredity, and genetic variation in…

Q: Define "alleles" and the role they might play in evolution

A: Alleles are found in chromosome.

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: Harmful alleles persist in some populations, explain how this is possible with natural selection…

A: A harmful gene can persist in the population for a variety of reasons.  The gene is helpful in some…

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: A scientist came across two populations of beetle species, each true-breeding. One population was…

A: An allele can be dominant or recessive. Dominant allele will express in heterozygous condition by…

Q: Describe the way gene flow stabilizes allele frequency.

A: The Hardy-Weinberg principle of equilibrium is used for stating that the alleles of a population and…

Q: In one species of finch, there are alleles for yellow color and red color, but neither of these…

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

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: Can you explain how eugenics attempts to alter allele frequencies

A: Eugenics is selective breeding.

Q: snip

A: Darwin concluded that existing living forms share similarities to varying degree not only among…

Q: Without mutation, evolution would proceed at a slower pace because changes in allele frequencies…

A: Mutation is change in normal DNA sequence . It can occur as as result of error  during cell division…

Q: Which term indicates that a single gene has two or more alleles present in a population? A. Point…

A: Gene are unit of genetics that play an important role in life. They are the basic unit of life and…

Q: Relate heritability to the theory of evolution?

A: Evolution is the process by which populations of organisms change over generations. The basis of…

Q: Rate of evolution by selection is highest for an allele when it is _________ . a. wild type b.…

A: Evolution has been the key to the development in the world. From evolution of organic molecules from…

Q: What happened to the recessive alleles in this following scenarios: A. Complete zygotic selection…

A: Recessive alleles are expressed only when they are present at both the locus. When they are present…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: