You have isolated some DNA from liver cells. The base sequence of one strand of the DNA is TAGCCGA. The complementary sequence of bases on the complementary RNA must be:
ATCGGCT
AUCGGCU
CGTATTA
GCTATTA
The Correct Answer is B
A. ATCGGCT: This is a complementary DNA strand, not RNA. DNA uses thymine (T), but RNA uses uracil (U).
B. AUCGGCU: RNA transcription pairs A→U, T→A, G→C, and C→G.
DNA: T A G C C G A
RNA: A U C G G C U
C. CGTATTA: Random mismatch, not related to either DNA or RNA pairing for this sequence.
D. GCTATTA: Also incorrect DNA base pairing and not applicable to RNA transcription.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Midsagittal: A midsagittal plane divides the body equally into right and left halves down the midline.
B. Frontal: A frontal (coronal) plane divides the body into anterior (front) and posterior (back) parts.
C. Parasagittal: A parasagittal plane divides the body into unequal right and left portions-not straight down the midline.
D. Transverse: A transverse plane divides the body into upper (superior) and lower (inferior) portions-not left and right.
Correct Answer is D
Explanation
A. 1,3,3,1,2,4: This order is illogical-it repeats pleura in an inconsistent pattern and places visceral pleura first.
B. 3,1,1,3,4,2: It ends with visceral pericardium followed by parietal, which is anatomically reversed.
C. 1,3,3,1,4,2: Starts with visceral instead of parietal and ends in the wrong order.
D. 3,1,1,3,2,4: This choice correctly represents the entry path: through parietal pleura (3) → visceral pleura (1) → lung → parietal pericardium (2) → visceral pericardium (4) → heart.
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