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Why do scientists think RNA may have evolved before DNA?
because RNA depend to DNA.
Why could RNA evolve before DNA?
I think It's because RNA is less complex than DNA.
Did RNA exist before DNA?
It is believed that RNA predates DNA in the evolution of life on Earth. RNA is thought to have played a crucial role in early life processes, such as catalyzing chemical reactions and storing genetic information. Over time, DNA likely evolved from RNA as a more stable and efficient means of storing genetic information.
What must happen to a DNA molcule before RNA polymerase can make RNA?
Before RNA polymerase can make RNA, the DNA molecule must be unwound and the double helix separated to expose the sequence of nucleotides that will be used to transcribe the RNA. This process is facilitated by proteins that help open the DNA molecule for transcription.
What enzyme matches RNA nucleotides to complementary DNA nucleotides?
The enzyme that matches RNA nucleotides to complementary DNA nucleotides is called reverse transcriptase. It is used by retroviruses like HIV to convert their RNA genome into DNA before integrating it into the host cell's genome.
What enzyme transcribes DNA?
The enzyme that transcribes the DNA into RNA is called RNA polymerase.
What must happen to a DNA molecule before RNA polymerase can make RNA?
The DNA molecule must first unwind and separate into two strands. This process is called transcription, during which RNA polymerase can then read and transcribe one of the DNA strands to synthesize RNA.
What is the process of combining rna from DNA called?
The process of combining RNA from DNA is called transcription. During transcription, an enzyme called RNA polymerase reads the DNA template strand and synthesizes a complementary RNA strand. This newly formed RNA molecule can then undergo further processing before being translated into proteins.
In which organelle is DNA kept and RNA transcript?
DNA is kept in the nucleus, while RNA transcription occurs in the nucleus before the mRNA moves to the ribosomes in the cytoplasm for translation.
What is the name of the nucleotides have no DNA and no RNA?
Nucleotides do not have DNA or RNA. DNA and RNA are composed of nucleotides.
What is the substance in RNA but not DNA?
An uracil base is in RNA but not in DNA
What base does RNA have that DNA does not have?
RNA has the base uracil that DNA does not have.
