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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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Anonymous Carolina Castillo2
wrote...
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A year ago
1) A DNA sense strand contains the following nucleotide base sequence:

TAC AGC AAT CAC

From this, what is the nucleotide sequence of the mRNA strand that is transcribed?

a. UAC AGC AAU CAC

b. UAC TGC AAU CUC

c. ATG TCG TTA GTG

d. AUG UCG UUA GUG












2) Which of the following could be the mRNA codon, the codon on the DNA sense strand, and the codon on the DNA antisense strand for the amino acid valine?

a. mRNA Codon       Codon on DNA Sense Strand           Codon on DNA Antisense Strand
        GUA                                          CAT                                                        GTA

b. mRNA Codon        Codon on DNA Sense Strand           Codon on DNA Antisense Strand
           GUG                                        CAC                                                             GTG

c. mRNA Codon     Codon on DNA Sense Strand            Codon on DNA Antisense Strand
         GCA                                         GCA                                                            CGT

d. mRNA Codon         Codon on DNA Sense Strand          Codon on DNA Antisense Strand
        GUA                                           GTA                                                           CAT












3) A portion of an unknown enzyme has the amino acid sequence serine – phenylalanine – glutamate – lysine.

The DNA code for the amino acid sequence of this unknown enzyme is

a. AGA AAA CAA ATA

b. AGC AAG CTC TTC

c. UCG AAA CUC UUU

d. AGT AAG GTT TTC
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A year ago
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Anonymous Author
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#2
A year ago
thanks
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