Organisms heterozygous for a recessive trait are often called carriers of that trait. What does that mean?

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: Using the pedigree shown here, answer the following questions for individual VI-1. A. Is this…

A: Inbreeding is a type of breeding in which mating individuals are genetically related. Inbreeding…

Q: If recessive alleles were beneficial, would this promote the evolution of selfing? Describe why or…

A: Breeding systems are extremely important as they affect genome evolution through genetic processes.…

Q: If not all mutations that contribute to species evolution are passed down, what conditions must be…

A: Mutations  These are the alterations in the sequence of the DNA, occured due to the mistakes during…

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: What are outbreeding?

A: The material used to store genetic information in the mitochondria or nuclei of an organism’s cells…

Q: A family pedigree is shown here. A. What is the inbreeding coefficient for individual IV-2? Who is/…

A: Inbreeding results from the consanguineous mating i.e. mating between related individuals who share…

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: 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: 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: If 96 out of 200 individuals in a population express the recessive phenotype, what percent of the…

A:

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 natural disasters affects the genetic structure of a population? (genetic drift)

A: Genetics is the study of genetic characteristics of an organism in a population. Genes control the…

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: On average, genetic drift results in genetic diversity over time.

A: Genetic drift is the change in the frequency of an existing gene variant in a population due to…

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: What are inbreeding?

A: Breeding is a process of sexual reproduction that generates offsprings in plants or animals. There…

Q: If humans have characteristics that make them unsuitable for genetic analysis, such as long…

A: The study of genes, genetic variation, and heredity are studied under the defined branch of biology…

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: Does the term gene pool apply to individuals, populations, or both?

A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…

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: What is the difference between a gene and an allele?   a. A gene is a form of a trait, and alleles…

A: Heredity, also known as inheritance is the passing on of characters or traits from parents to their…

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: 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: Why is it true that the concept of "race" is not a scientific concept?

A: Race is refer to as a group of humans that categorized on the basis of various sets of heritable…

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: 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: 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: 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: If heterozygosity is reduced, what happens to the potential for evolution?

A: Evolution is the alteration in the organisms of a population at the gene level that over time leads…

Q: Before we understood genetics, the process of passing traits from parents to children was known as……

A: Genetics was discovered by John Gregory mental and accordingly he is called as the father of…

Q: In a population, the frequencies of two alleles are B = 0.67 and b = 0.33. The genotype frequencies…

A: Frequency is the number of occurrences of an event which, is repeated per unit of time. Genotypic…

Q: Why does the relation between phenotype and genotypematter in evolution?

A: Genotype – it is the genetic constitution (a pair of alleles) of an individual. The pair of alleles…

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: 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: Imagine a huge population with a gene that has ten functionally equivalent, neutral alleles. a small…

A: A huge population with a gene that has ten functionally equivalent, neutral alleles and if a small…

Q: Why is inbreeding not advisable?

A: Inbreeding is the process of mating closely related individuals like brother and sister, father and…

Q: Why is variation beneficial to the species but not necessary for the individual?

A: Variation is defined as any difference between cells, individual organisms, or groups of organisms…

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: If you wanted to crossbreed some Felis lybica to eventually have a domestic cat, what traits would…

A: An organism with purebred parents from two different breeds, variations, or populations is known as…

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: 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: A population of beetles have 345 red-sided individuals and 707 tan-sided individuals. Assume that…

A: In genetic studies, the Hardy–Weinberg principle, also called as the Hardy–Weinberg equilibrium,…

Q: Why was the five-kingdom system abandoned for a three-domain system?

A: Taxonomy is the branch of biology, which deals with the science of naming, defining and classifying…

Q: Which phenomenon describes individuals that do not share a common ancestor?

A: The alterations in the characteristics inherited through the biological populations over successive…

Q: What is the importance of heritability in natural selection?

A: Introduction  In breeding and genetics, the term "heritability" refers to a statistic that…

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: Define genetic drift.

A: Gene is a specific nucleotide sequence in RNA or DNA. It is generally located on a chromosome. An…

Q: there are 300 diploid individuals in a population, how many alleles are in the total gene pool?…

A: Diploid individuals have two set of chromosomes in the cell.  Alleles are the alternative form of…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.