Transcription is when DNA segments are copied into RNA.
1. RNA Polymerase bonds to a promoter (Those cool start/stop codons)
2. RNA Polymerase breaks all the hydrogen bonds between the two stands of DNA
3. RNA Polymerase create the pair strand for one of the DNA strands (Uracil instead of Thymine!)
4. Hydrogen bonds break between the DNA strand and RNA strand
5. DNA is zipped back up and RNA either floats around in the Nucleus (if there is one) or exists through a pore
Answer:
The mRNA strand for TATACGA is UTUTGCT.
Explanation:
The DNA bases are adenine (A), thymine (T), guanine (G), and cytosine (C). Each of these bases pairs with a complimentary one. Adenine pairs with thymine, and cytosine pairs with guanine.
During transcription, the DNA is transcribed into an mRNA strand. The mRNA has the same complementary bases of the DNA strand, with the difference that instead of having adenine base the complementary base of thymine, it has uracil (U). When we interpret the DNA strand TATACGA, the mRNA will be adenine (A) paired with the DNA's thymine (T), uracil (U) paired with the DNA's adenine (A). Then the same sequence repeats itself. After that, guanine (G) pairs with DNA's cytosine (C), cytosine (C)pairs with the DNA's guanine (G), and lastly, thymine (T) with the DNA's adenine (A).
Answer:
So where then did all the carbon that living organisms are built of come from? It turns out that most of the carbon we use today came from a collision with another smallish planet about 4.4 billion years ago.
Sponge body contains cells but not perform work together!!
But they are made up of two embroyonal layer as endoderm and ectoderm !!
so thee most appropriate answer is A !!
Chloroplasts are organelles specialized for photosynthesis. Animals do not photosynthesize; therefore, they do not need chloroplasts.
