For a given population, can you precisely predict when loss of genetic variation (fixation) will occur?

Expert Solution

Genetic variation is significant in a population, without variation the population faces the risk of being extinct. Genetic variation is essential for evolution to take place. Evolution favours the individuals to survive in th extreme conditions.

Several factors results in the loss of the genetic variation in the population. Genetic drift is one such factor, which results in the loss of certain rare alleles and reduces the gene pool size. The less number of individuals in the population also results in the decrese of alleles. The loss of habitat, destruction of forests etc. have resulted in reduction of number of individuals.

In certain situations, inbreeding plays a major role in reducton of genetic variation and leading to fixation. The same individuals of the same population keeps on breeding and produce offsprings without any variations. These genetically similar individuals are prone to various diseases and thus genetic variation is a must for population to survive.

gladiator answered 1 year ago

a. Explain how genetic drift can lead to a reduction in the genetic variation within a population.

a. Explain how genetic drift can lead to a reduction in the genetic variation within a population. b. Under what conditions is drift most likely to occur?

9. Which evolutionary processes can increase genetic variation in a population? 10. Is it possible to...

9. Which evolutionary processes can increase genetic variation in a population? 10. Is it possible to have evolution without natural selection?

How do bottleneck events alter genetic variation in a population?

give four examples of variation that can occur in a business

Report on mechanism responsible for increasing genetic variation within a sexually reproducing population

Identify the effect(s) of specific population-genetic forces on genetic variation within and between populations over time....

Identify the effect(s) of specific population-genetic forces on genetic variation within and between populations over time. In each of the table cells, choose one of the options in the drop-down menu that appears. Genetic variation within a population Genetic variation between multiple populations Mutation [ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"] ...

Population bottlenecks and founder effects A.have opposite effects on population variation B.both lead to genetic drift,...

Population bottlenecks and founder effects A.have opposite effects on population variation B.both lead to genetic drift, which reduces variation in the population C.both result in genetic variation due to extreme conditions D.both result in an increased mutation rate in the population

Genetic variation is the difference in DNA sequences between individuals within a population. The human genome...

Genetic variation is the difference in DNA sequences between individuals within a population. The human genome has about 3 × 109 base pairs of DNA, and between any two humans, the amount of genetic variation is about 0.1%. In other words, about 1 bp in every 1,000 bp of DNA will be different between two random individuals. Any two individuals have about 6 × 106 base pairs that are different. Therefore, we can say that there is considerable genetic variation...

1. How does sustained directional selection affect the amount of genetic variation within a population?

1. How does sustained directional selection affect the amount of genetic variation within a population? A. The amount of genetic variation increases. B. The amount of genetic variation decreases. C. The amount of genetic variation stays the same. 2. Which of the following hypothetical populations is most likely to be mating assortatively at the M locus? Numbers refer to observed percentages of each genotype. A. 81 MM, 18 Mm, 1 mm B. 25 MM, 50 Mm, 25 mm C. 20 MM, 20 Mm, 60 mm D. 20 MM,...

Meiosis Essay Question: Three events in sexual reproduction contribute to genetic variation in a population: independent...

Meiosis Essay Question: Three events in sexual reproduction contribute to genetic variation in a population: independent assortment, crossing over, and random fertilization. Explain how the three processes of sexual reproduction are advantageous to organisms and generate genetic variation within a population. - State which phase of meiosis is occurring during each of the three events. - Also, explain what is happing during these phases that results in the genetic diversity of offspring. - How is this advantageous to the population...

Question