In the diagram below, the gray unit represents _____.

Question

In the diagram below, the gray unit represents _____.
A blue molecule arranges in the form of a double chain. The gray unit on this figure represents an oval structure that contains unwound and unpaired chains of this molecule. Before and after this unit, the molecule is wound in the form of a double helix. A green unit represents a part of the double helix before the gray unit.

RNA
DNA
transcription factors
RNA polymerase
the promoter
Request Answer
Part B
In the diagram below, the green unit represents _____.
A blue molecule arranges in the form of a double chain. The gray unit on this figure represents an oval structure that contains unwound and unpaired chains of this molecule. Before and after this unit, the molecule is wound in the form of a double helix. A green unit represents a part of the double helix before the gray unit.

RNA
DNA
transcription factors
RNA polymerase
the promoter
Request Answer
Part C
In the diagram below, the two blue strands represent _____.
A blue molecule arranges in the form of a double chain. The gray unit on this figure represents an oval structure that contains unwound and unpaired chains of this molecule. Before and after this unit, the molecule is wound in the form of a double helix. A green unit represents a part of the double helix before the gray unit.

View Available Hint(s)for Part C

RNA
DNA
transcription factors
RNA polymerase
the promoter
Part D
Which of these correctly illustrates the pairing of DNA and RNA nucleotides?

GTTACG
CAATCG

GTTACG
CAAUGC

GTTACG
GTTACG

GTTACG
ACCGTA

GTTACG
UAACAU
Request Answer
Part E
The direction of synthesis of an RNA transcript is _____.

1' —> 5'
5' —> 3'
1' —> 3'
3' —> 5'
2' —> 4'

GPT-4o mini · Answer

Let's break down each part of your question based on the provided diagram description.

Part A: The gray unit represents _____
The gray unit, described as an oval structure containing unwound and unpaired chains of the blue molecule, typically refers to RNA being synthesized from a DNA template during transcription. Thus, the gray unit represents RNA.

Part B: The green unit represents _____
The green unit is described as part of the double helix before the gray unit. Given that it precedes the unwound section (where transcription occurs), it likely represents a segment of DNA that is still in the double helix form, so the green unit represents DNA.

Part C: The two blue strands represent _____
Since the blue molecule is represented as a double chain that forms a double helix before and after the gray unit (the unwound section), the two blue strands in this context most likely represent DNA.

Part D: Which of these correctly illustrates the pairing of DNA and RNA nucleotides?
Assuming that the sequence "GTTACG" represents a DNA strand, the correct complementary RNA sequence would replace thymine (T) with uracil (U). Therefore, the matching sequence for "GTTACG" would be "CAAUGC". Thus, the correct pairing is:

GTTACG
CAAUGC

Part E: The direction of synthesis of an RNA transcript is ______.
RNA synthesis occurs in the 5' to 3' direction. Therefore, the correct answer is:

5' —> 3'

I hope this breakdown helps clarify your questions!