Which of the following is true regarding DNA structure?
A.DNA is single-stranded
B.DNA forms a double helix
C.In DNA, purines pair together and pyrimidines pair together
D.DNA is compose of amino acids
Which of the following strands is complementary to this DNA sequence? ACAGTC
A.ATCCCG
B.TGACAG
C.TGTCAG
D.GGGCCC
What is the complementary DNA strand that is created from this template during replication? Template Strand = 3' TAGGCATTGCA 5'
A.5' TAGGCATTGCA 3'
B.5' ATCCGTAACGT 3'
C.5' AUCCGUAACGU 3'
D.5' TGCAATGCCTA 3'
Which of the following is true regarding transcription and translation?
A.During transcription, an mRNA molecule is created from the DNA molecule.
B.Translation takes place in the nucleus, while transcription takes place in the cytoplasm.
C.During protein synthesis, translation occurs prior to transcription.
D.During translation, a DNA sequence is used to synthesize an amino acid sequence.
Which direction does genetic information flow during gene expression?
A.DNA > Protein > RNA
B.Protein > RNA > DNA
C.RNA > Protein > DNA
D.DNA > RNA > Protein

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bearycutebaby bearycutebaby · Answer 1 · 2019-05-26T18:38:29+02:00

1. DNA forms a double helix.

Explanation: DNA is composed of two-strands that wind around each other.

2. TGTCAG

Explanation: Adenine is complementary to thymine and Guanine is complementary to cytosine

3. During translation, a DNA sequence is used to synthesize an amino acid sequence.

Explanation: Translation takes place OUTSIDE the nucleus in the cytoplasm

Transcription takes place INSIDE the nucleus

4. DNA> RNA> Protein

samueladesida43 samueladesida43 · Answer 2 · 2021-11-10T03:59:00+01:00

The true statement regarding DNA structure is that DNA forms a double helix.
The complementary strand to the DNA sequence: ACAGTC is TGTCAG
The complementary DNA strand that is created from this template (3' TAGGCATTGCA 5') during replication is 5' ATCCGTAACGT 3'
The statement that is true regarding transcription and translation is that during transcription, an mRNA molecule is created from the DNA molecule.
The direction in which genetic information flow during gene expression is DNA > RNA > Protein.

QUESTION 1:

DNA is a biological molecule that stores genetic information in living cells. The DNA molecule is structurally made up of nucleotide subunits, which pairs together with an hydrogen bond to form a double helical structure.

QUESTION 2:

In the DNA, adenine base pairs with Thymine while Guanine pairs with Cytosine i.e. A-T, G-C. Hence, in a DNA sequence as follows: ACAGTC, the complementary strand will be TGTCAG.

QUESTION 3:

As described in question 2, the complementary strand of the following DNA sequence: 3' TAGGCATTGCA 5' produced during DNA replication will be 5' ATCCGTAACGT 3'.

QUESTION 4:

Transcription is the process by which a mRNA molecule is synthesized from a DNA template while translation is the process by which amino acid sequence are synthesized from mRNA transcript.

QUESTION 5:

During gene expression, transcription occurs before translation. This means that the mRNA molecule is synthesized first from the DNA molecule, then the mRNA is used to synthesize proteins in the translation process.

The direction in which genetic information flow during gene expression is as follows: DNA > RNA > Protein.

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