AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
For this DNA strand, what is the complementary DNA strand?TTA GCC CGA
A
TTA GCC CGA
B
AAU CGG GCU
C
AAT CGG GCT
D
AGC CCG ATT
Explanation: 

Detailed explanation-1: -noun Biochemistry. either of the two chains that make up a double helix of DNA, with corresponding positions on the two chains being composed of a pair of complementary bases. a section of one nucleic acid chain that is bonded to another by a sequence of base pairs.

Detailed explanation-2: -mRNA is formed as a complementary strand to one of the two strands of the DNA. Three of the four nitrogenous bases that make up RNA-adenine (A), cytosine (C), and guanine (G)-are also found in DNA.

Detailed explanation-3: -To determine the sequence of the complimentary strand, we must look at each base in the template DNA strand and match it with its complimentary base. The strand that is complimentary to ATGCCGTATAGG is TACGGCATATCC.

Detailed explanation-4: -Recall that adenine nucleotides pair with thymine nucleotides, and cytosine with guanine. This means that the two strands are complementary to each other. For example, a strand of DNA with a nucleotide sequence of AGTCATGA will have a complementary strand with the sequence TCAGTACT (Figure 9.8).

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