Biology, 18.03.2021 01:10 ethanmel21
The blue people of Troublesome Creek Kentucky were genetically isolated from the rest of the world for generations. A rare recessive allele that causes people to have a blue tone to their skin, methemoglobinemia, became disproportionately common within this population by way of their genetic isolation. In the last few decades new roads opened leading to the end of this communities isolation. To the surprise of many, the methemoglobinemia phenotype disappeared along with their genetic isolation. Which of the following may best explain the apparent disappearance of this once common trait?
a. Methemoglobinemia did not confer any physical advantage so that the trait was selected against.
b. Methemoglobinemia was probably lethal and all those that carried this trait died and did not have a chance to pass on this trait to future generations.
c. Those that had the traits simply did not have descendents.
d. With the end of genetic isolation gene flow took place.
Answers: 3
Biology, 22.06.2019 03:30
What is the most appropriate method of gaining weight (muscle mass)
Answers: 1
Biology, 22.06.2019 06:40
Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.
Answers: 3
Biology, 22.06.2019 07:00
Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.
Answers: 1
Biology, 22.06.2019 10:00
Suppose you use three different scale to weigh a bag of oranges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of oranges is 2.153 lb. which of the following best decribes these results?
Answers: 2
The blue people of Troublesome Creek Kentucky were genetically isolated from the rest of the world f...
Mathematics, 20.05.2021 18:20
Mathematics, 20.05.2021 18:20
Arts, 20.05.2021 18:20
Mathematics, 20.05.2021 18:20
Mathematics, 20.05.2021 18:20
Social Studies, 20.05.2021 18:20
Mathematics, 20.05.2021 18:20
Biology, 20.05.2021 18:20
Mathematics, 20.05.2021 18:20
Mathematics, 20.05.2021 18:20
Mathematics, 20.05.2021 18:20