1. Which of the following processes is/are most important for bacterial speciati

Question

1. Which of the following processes is/are most important for bacterial speciation?

a. horizontal gene transfer

b. horizontal gene transfer and natural selection

c. mutation and natural selection

d. mutation and adaptation

2. What is the most recent date when all cells on Earth still lacked a membrane-enclosed nucleus?

a. 2.5 billion years ago

b. 1 billion years ago

c. 2 billion years ago

d. 1.5 billion years ago

3. In what type style are the scientific names of prokaryotic organisms printed?

a. all lowercase

b. italics

c. all capitalized

d. bold

Explanation / Answer

1. b is the correct option

because the bacteria speciation as very important factor for horizontal gene transfer and natural selection and the bacteria are different from eukaryotes in their pattren of genetic exchange

2. option c is correct

3.option b is correct

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