Biology, 26.07.2019 07:30 smokemicpot
Astrain of bacteria possesses a temperature-sensitive mutation in the gene that encodes the sigma factor. the mutant bacteria produce a sigma factor that is unable to bind to rna polymerase at elevated temperatures. what effect will this mutation have on the process of transcription when the bacteria are raised at elevated temperatu
Answers: 1
Biology, 21.06.2019 22:00, lazavionadams81
Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.
Answers: 2
Biology, 21.06.2019 22:00, DWASS
Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.
Answers: 2
Astrain of bacteria possesses a temperature-sensitive mutation in the gene that encodes the sigma fa...
Mathematics, 25.03.2021 21:00
Biology, 25.03.2021 21:00
History, 25.03.2021 21:00
Physics, 25.03.2021 21:00
Mathematics, 25.03.2021 21:00
Social Studies, 25.03.2021 21:00