Which of the following contribute to keeping low-fitness alleles in our gene pool? Choose all that are correct Random mating Efficient selection against rare recessive disease-causing alleles New mutations Late age of onset of some diseases Inefficient selection against rare recessive disease-causing alleles

Q: The ABO bloodtype system is of anthropological interest because it is an example of a(n) _________…

A: Human Blood has plasma component and cellular components. Cellular components include R.B.C, W.B.C,…

Q: What is the selective factor, or selective environment, in the case of sexual selection, that allows…

A: Natural selection types: The distribution of phenotypes within a population can be affected by…

Q: Which of the following could result in a polyphenism? A mutation creates a deleterious version of an…

A: Polymorphism is heritable. It is the ability of object to take many forms. Polyphenism is a type of…

Q: Which of the following statements regarding selection is true? Incorrect answer -  selection will…

A: Natural selection is the adaptation and change of populations of living organisms. Individuals in a…

Q: Which of the following is a FALSE statement?     Inbreeding non-random mating will increase the…

A: Inbreeding non-random mating will increase the number of homozygotes. This statement is true.…

Q: What is the difference between genetic drift and natural selection? Genetic drift is the random…

A: The branch of science which is concerned with the study of genes is known as genetics. It involves…

Q: A freshwater fish called the blue danio (Danio kerri) has pink stripes down its sides.  What has to…

A: GloFish is a brand of genetically modified fluorescent fish that has been patented and trademarked.…

Q: Which of the following is a form of a heritable trait that enhances an individual’s fitness?…

A: Among the given options -  Option A) Adaptation is considered as the behavioural or a physical…

Q: Which of the following alleles would most likely be in Hardy Weinberg equilibrium? An allele in a…

A: There are found following Hardy Weinberg assumption: There are not found any migration between the…

Q: Which of the following do NOT contribute to keeping low-fitness alleles in our gene pool? O Late age…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: The delta-32 mutation, a recessive gene, gives humans protection from HIV infection.  The allele…

A: According to Hardy Weinberg`s equation-  p = frequency of the dominant allele in the populationq =…

Q: What is a mode of natural selection that favors a phenotype at one end of a range of variation?…

A: Natural selection is the adaptation and alteration of populations of living organisms. Individuals…

Q: Sexual selection is kind of natural selection in which      characteristics related to mating…

A: Charles Darwin laid the inspiration for all modern work on sexual selection in his seminal book The…

Q: It is estimated that every human carries at least one recessive lethal allele (i.e. they are…

A: In diploid organisms such as humans, the efficacy of selection on a deleterious mutation depends…

Q: What is artificial selection? * 1 point When the environment selects the best traits to survive and…

A: Natural selection is based on the environment conditions and more on adaptive characteristics of…

Q: Which of the following traits would you expect to be under weakest selection? Explain your answer.…

A: Natural selection can be defined as sum of natural forces that causes differntial reproduction and…

Q: Sexual selection tends to cause bigger size,more elaborate weaponry, or brighter colors in males. Is…

A: Natural selection is the method by which a population of living organisms accommodates and develops…

Q: The sex of sea turtle offspring is determined by temperature during development. Temperature over…

A: Sea turtles are otherwise called marine turtles. They are of different sizes,shapes,and colors. They…

Q: Which of these scenarios is an example of disruptive selection?

A: Types of natural selection is - 1.Stabilizing selection - It favours mean character and rejects…

Q: Which of the following is an example of a limitation on adaptation through natural selection? In a…

A: Natural selection is the process where populations undergo adaptations where favorable traits get…

Q: Which of the following is likely to be observed if there has been a strong positive selection on a…

A: Positive selection decrease genetic variation by Using models of the selective sweeps to estimate…

Q: Which of the following types of non-random mating DOES result in evolutionary change on its own?…

A: The process of formation of new species is known as speciation. Speciation begins with a change in a…

Q: Why is genetic variation among individuals beneficial?   Genetic variation staves off extinction…

A: The genetic variation is the changes in the genetic characteristics of an organism in the…

Q: About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene.…

A: The dominant allele is marked by the letter p, and the recessive allele is denoted by the letter q.…

Q: The equilibrium frequency of a deleterious allele under mutation-selection balance increases as:

A: Answer: EQUILIBRIUM  FREQUENCY is the frequency or point at which no more changes occured in allelic…

Q: Which of the following contribute to keeping low-fitness alleles in our gene pool? Choose all that…

A: Natural selection will cause evolution (change in gene frequencies), with fitness-increasing alleles…

Q: A few birds fly over a large mountain and begin breeding with the lighter colored bird population on…

A: Gene flow/ migration or allele flow is the movement of genetic information from one population to…

Q: What would happen if a mutation created a new allele that decreased fitness? *

A: A mutation is a change in an organism's, virus's, or extrachromosomal DNA's nucleotide sequence. DNA…

Q: Which of the following are true about the logic we use to identify alleles under positive selection…

A: 1)Alleles under positive selection occur at relatively high frequency. Positive frequency dependent…

Q: In what ways has artificial selection changed people’s quality of life? Give examples. How might…

A: Artificial selection is the selective breeding of plants and animals for specific traits in order to…

Q: An island had an equal proportion of white- and black-coated mice. Eagles found the island and…

A: Introduction A predator is an organism that consumes all or part of the body of its prey, which may…

Q: Suppose there is a type of deleterious mutation in a particular human gene that causes death very…

A: There are few important points : We know that heterozygous deleterious mutations can give rise to…

Q: Which of the following principles of selection are true for both the sickle cell and rock pocket…

A: The differential survival and reproduction of individuals due to phenotype differences is natural…

Q: The graph below shows values for body size in parents and offspring.  The data shown are consistent…

A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…

Q: Kin selection is?     Natural selection that increases one's indirect fitness at the expense of…

A: Kin selection is the process where an individual of a particular species ensures the success of…

Q: Five conditions are required to maintain the Hardy–Weinberg equilibrium in a population. Closed…

A: Introduction: When a population rises Hardy-Weinberg equilibrium for the a gene, evolution ceases…

Q: This type of selection favors individuals with alleles at both end of the spectrum of Traits

A: Diversifying (or disruptive) selection: Diversifying selection occurs when extreme values for a…

Q: Which of the following is a TRUE statement?     Non-random mating will increase the number of…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Say you have a lab population of 1000 dragonflies that is in Hardy Weinberg equilibrium.  Body color…

A: Population genetics is a subfield of genetics that deals with genetic differences within and between…

Q: Five conditions are required to maintain the Hardy–Weinberg equilibrium in a population. Closed…

A: When a population is in Hardy-Weinberg equilibrium for a gene, it is not evolving, and allele…

Q: Identifying genes like HMGA2 is important, because it is evidence of natural selection. How does it…

A: Answer.  Natural selection is a process by which the forms of organisms in a population that are…

Q: Generally speaking, natural selection tends to select for dominant alleles while genetic drift tends…

A: Answer: NATURAL SELECTION = It is the ability in the organisms which tends to survive in different…

Q: With respect to this form of natural selection, explain the meaning of the word directional.

A: Natural selection is a process that results in the adaptation of an organism to its environment by…

Q: Which of the below is NOT a component of natural selection? Group of answer choices Differential…

A: Evolution is defined as the change in trait of species over a period of time. It is a long term…

Q: Siberian tigers are the largest of all tiger species because only the largest individual are able to…

A: Siberian tigers are among the largest on earth.   They have to survive under extreme cold conditions…

Q: Dog breeders use selective breeding, also called artificial selection, to maintain a closed genetic…

A: Introduction Selective breeding includes meeting up parents with similar characteristics in order to…

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…

Q: Under which of the following scenarios would variation be maintained? Selection acting on a…

A: Genes are the functional units of DNA. They carry information that is transmitted from one…

Q: If alleles at the A locus are closely linked to specific alleles at the B locus, can natural…

A: The Hardy-Weinberg (HW) law states that genotypic and allele frequencies are constant throughout…

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.