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BIO 103 You can write on the exam; however, I will not use it to grade your exam

ID: 257519 • Letter: B

Question

BIO 103 You can write on the exam; however, I will not use it to grade your exam. Answer questions on SCANTRON and answer sheet Multiple Choice. Choose the best answer. 2 pts each USE SCANTRON 1. An antcodon is A. 4 consecutive nucleotides in tRNA. C. the promoter region of a gene. B.3 consecutive nucleotides in tRNA. D. 3 consecutive amino acids in a protein. 2. The ABO blood type is an example of A codominance B. incomplete dominance C.recessivity D. repression 3. Within the genetic code, there are multiple codons for a given amino acid. This property is referred to as the of the code A. universality B. rare codon usage C. specificity D. degeneracy (redundancy) 4. In transcription, a new strand of RNA is created as bases are added by which enzyme? A. Bacterial duplicating complex C. DNA replicase 8. DNA polymerase D. RNA polymerase 5. Which of the following molecules is most responsible for converting the nucleic acid language into the amino acid language? A. DNA B. mRNA C. tRNA D. rRNA 6. Which part of a gene is the coding region (tells cell which amino acid to add to protein)? A promoter B. exon C. intron D. enhancer

Explanation / Answer

AS PER CHEGG POLICY, PROCEEDING TO ANSWER A MINIMUM OF FIRST QUESTION, OR, FIRST 4 SUB-QUESTIONS / PARTS / SUBPARTS, THAT IS, IN THIS CASE ONLY QUESTION 1 TO 4, UNLESS SPECIFIED/INDICATED TO DO SPECIFIC QUESTIONS BY THE QUESTION UPLOADER:

ANSWER 1.
B. 3 consecutive nucleotides in tRNA - this is because it detects the complementary codon on mRNA

ANSWER 2.
A. codominance - this is because when A and B alleles are present, it leads to expression of both individually

ANSWER 3.
D. Degeneracy (redundancy)

ANSWER 4.
D. RNA Polymerase - this is because RNA polymerase will be able to add ribonucleotides to polymerize the chain