Question 662 pts Using the printed Genetic Codes Chart provided to you on Moodle

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Question 662 pts

Using the printed Genetic Codes Chart provided to you on Moodle, determine the amino acid that corresponds to the mRNA codon ACU.

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Question 672 pts

Using the printed Genetics Code Chart provided to you on Moodle, determine the amino acid that corresponds to the DNA sequence TAC.

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Question 682 pts

Deletions, frameshifts, and skipped nucleotides are just a few problems during DNA replication or transcription. What could these errors lead to?

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Question 692 pts

in DNA replication, the newly synthesized DNA strand produced toward the replication fork is known as the:

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Question 702 pts

If the original DNA strand reads ACCGTCAGTC and it is mutated to ACCCTCAGTC, a(n) ___________________ has occurred.

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Question 712 pts

If the original DNA strand reads ACCGTCAGTC and it is mutated to ACCTCAGTC a(n) ___________________ has occurred.

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Question 721 pts

The enzyme responsible for adding nucleotides during DNA replication is known as __________________.

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Question 731 pts

After transcription, the eukaryotic primary RNA transcript must __________________ before it is translated into a protein.

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Question 741 pts

The central dogma of gene expression can be represented as

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Question 751 pts

Noncoding regions of DNA:

Explanation / Answer

Answer 66.

ACU is the codon for threonine.

So, the correct answer is option ‘c’.

Answer 67.

If the DNA sequence is 3’-TAC-5’ (in the template), then its complementary RNA will be “AUG”

AUG is the universal code for methionine.

So, the correct answer is option ‘c’.

Answer 68.

Due to frameshift mutation, a deletion or an insertion occurs in the DNA sequence. This leads to shift in the reading frame of gene. This is a type of mutation (option ‘c’ is correct) can change the entire protein, or can silence the protein. Sometimes, the functional protein may not form or may be formed improperly (option ‘d’ is correct). Sometimes the same gene with some alternate allele is formed (option ‘a’ is correct).

So, the correct answer is option ‘b’ (all could occur).

Answer 69.

The strand whose direction points towards the replication fork is the lagging strand. So, the correct answer is option ‘a’.

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