(01.03 MC)
Scientists have found that all living things. from bacteria to humans, rely on genetic
codes to direct the functions of their cells. These genetic codes are contained in
strings of nucleotides and have very similar structures. Which hypothesis for the
origin of life on Earth is supported by this evidence?
Nucleotides and proteins that form the basis of life were originally carried to
Earth from outer space by comets and meteorites.
O Self-replicating RNA in the early Earth's oceans served as the basis for the DNA
in cells today.
Greenhouse gases in the atmosphere produced amino acids that are used in cells
today.
Photosynthesizing bacteria provided oxygen that formed ozone which protected
DNA from mutating into different forms.
Answers: 2
Other questions on the subject: Biology
Biology, 22.06.2019 01:00, akluke6059
Put the following processes of protein synthesis in the correct order: - dna strands unwind and separate - mrna copies dna according to complimentary base pairing - trna's anticodons bring amino acids to the corresponding mrna codons - amino acids bind to each other making a protein - mrna leaves the nucleus - a stop codon is reached, the newly formed protein is released to go do its job for the cell
Answers: 1
Biology, 22.06.2019 11:20, maddiecrouch21
Drag each label to the correct location on the chart. match the function to the type of tissue
Answers: 2
Biology, 22.06.2019 22:50, amorosoavap5cejz
Below are the three main organs that make up the plant body
Answers: 2
You know the right answer?
(01.03 MC)
Scientists have found that all living things. from bacteria to humans, rely on genetic
Questions in other subjects:
Business, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Geography, 14.12.2019 02:31
English, 14.12.2019 02:31
