Which of the following must stop to get speciation? Why? A) gene flow, because otherwise independent...

Which of the following must stop to get speciation? Why?

A) gene flow, because otherwise independent differences cannot accumulate

B) natural selection, because otherwise populations will adapt to new environments

C) mutation, because otherwise populations would get different alleles

D) sexual selection, because otherwise not every organism could find a mate

Solutions

Expert Solution

The correct Choice is:

A. gene flow, because otherwise independent differences cannot accumulate.

This will give rise to new species. When gene flow will not occur between two populations the newly arised characters will accumulate in the seperate populations and both populations will evolve into seperate populations.

Other choices are incorrect because:

B. If Natural Selection stops then all the members have the same opportunity to survive and as such there will be no chances to the individuals having some advantage to give rise to a new species.

C. Mutations give rise to new characters. Mutations which has positive effect on the survival or reproduction of the individual is selected against others. When these mutations accumulate in progeny. This will give rise to new species.

D. Sexual selection also leads to accumulation of the newly inherited characters which will lead to speciation.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

What role does neutral evolution/genetic drift play in speciation (in conjunction with barrier(s) to gene flow)?

(Gametic),(Meiosis),(Somatic)(Mitosis),(Genetic drift),(Speciation),(Gene flow),(Natural selection),(Mutation),(Sexual selection),(Sexual reproduction),(Populations) 13. Through ____________________, the frequency of a gene or allele...

(Gametic),(Meiosis),(Somatic)(Mitosis),(Genetic drift),(Speciation),(Gene flow),(Natural selection),(Mutation),(Sexual selection),(Sexual reproduction),(Populations) 13. Through ____________________, the frequency of a gene or allele will decline from one generation to the next if the trait that the gene or allele codes for results in fewer offspring or offspring of reduced quality. 14. Through ____________________, the frequency of a gene or allele may decline dramatically within a single generation. 15. Through ____________________, the frequency of a gene or allele will increase within a single generation as a result of...

Which of the following is not a stop codon

Which of the following is not a stop codonWhich of the following is the appropriate protein sequence translated from RNA

1. Which of the following must be satisfied by the flow of any fluid, real or...

1. Which of the following must be satisfied by the flow of any fluid, real or ideal? I. Newton's second law of motion II. the continuity equation III. the requirement of a uniform velocity distribution IV. Newton's law of viscosity V. the principle of conservation of energy a) I, II, and III b) I, II, and IV c) I, II, III, and N d) I, II, and V e) I, II, N, and V

Buffers (These questions must go together because they are all related to buffers.) A) Why must...

Buffers (These questions must go together because they are all related to buffers.) A) Why must the target pH be within 1 point of the pKa and not be able to exceed this value? B) After the solids were dissolved in the water first, why was the solution then topped up to the final buffer volume? Answer all questions thouroughly and clearly so that it'd make sense to a person who lack knowledge in chemistry.

Question 1 Why are government purchases assumed to be autonomous? a. because they are independent of...

Question 1 Why are government purchases assumed to be autonomous? a. because they are independent of the price level b. because they are independent of investment c. because they are independent of the level of real GDP d. because they are independent of consumption Question 2 hich term refers to workers who are overqualified for their current jobs or can find only part-time work? a. discouraged workers b. unemployed c. NOT in the labour force d. underemployed Question 3 Which...

1. Allopatric speciation is most likely to occur in which of the following scenarios? Group of...

1. Allopatric speciation is most likely to occur in which of the following scenarios? Group of answer choices There are two distinct possible feeding strategies within a given population, causing the rise of two species living in the same geographic area. All of the “parent” species of a new species go extinct, reducing gene flow between populations. A mutation changes the mating ritual followed by a subset of individuals in a population, and they end up forming an all-new species....

Before we conduct the independent-measures t-test, which other test must we perform and why?

Which example provides evidence of migration, but NOT of gene flow? After fledging, a male toucan...

Which example provides evidence of migration, but NOT of gene flow? After fledging, a male toucan disperses to another forest patch on the other side of a mountain range. This high-quality male finds mates easily in this new population. All of its offspring survive to breed in the next year in the same forest patch. A bearcat eats the fruit of a strangler fig tree and defecates seeds 10 km away among a different population of strangler figs. A hiker...

Why must the relationship between spot rates and forward rates hold? A) Because there is an...

Why must the relationship between spot rates and forward rates hold? A) Because there is an assumption of arbitrage-free valuation in the market. B) Because we need a reliable yield curve to price fixed-income securities C) Because investors require multiple methodologies to invest their savings D) Because the law of one price does not hold in all situations

Subjects