A) a retrovirus similar to HIV.
B) an enveloped virus.
C) small circular RNA molecules called viroids.
D) infectious proteins called prions.
Correct Answer
verified
Multiple Choice
A) natural selection
B) sexual recombination
C) meiosis
D) mutation
Correct Answer
verified
Multiple Choice
A) DNA...RNA
B) RNA...a polypeptide
C) DNA...a polypeptide
D) RNA...DNA
Correct Answer
verified
Multiple Choice
A) lysosomes
B) smooth endoplasmic reticulum
C) ribosomes
D) nucleoli
Correct Answer
verified
Multiple Choice
A) amino acids
B) transfer RNA
C) DNA
D) ribosomes
Correct Answer
verified
Multiple Choice
A) viral
B) ribosomal
C) transfer
D) messenger
Correct Answer
verified
Multiple Choice
A) is a slow process that results in virtually no errors
B) requires DNA polymerase and RNA polymerase
C) is a very fast process that results in numerous errors
D) requires the cooperation of over a dozen enzymes and other proteins
Correct Answer
verified
Multiple Choice
A) caps
B) promoters
C) exons
D) introns
Correct Answer
verified
Multiple Choice
A) splicing,capping,tailing
B) initiation,elongation,termination
C) tailing,capping,splicing
D) elongation,initiation,termination
Correct Answer
verified
Multiple Choice
A) lysogeny produces large numbers of bacteriophages
B) DNA viruses reproduce more rapidly than RNA viruses
C) the host cell speeds the release process
D) the viruses lyse the hosts to release mature viruses quickly in a short amount of time
Correct Answer
verified
Multiple Choice
A) each new DNA double helix consists of two old strands
B) each new DNA double helix consists of one old strand and one new strand
C) each new DNA double helix consists of two new strands
D) one new DNA double helix consists of two old strands and the other new DNA double helix consists of two new strands
Correct Answer
verified
Multiple Choice
A) thymine and cytosine are single-ring structures,whereas adenine and guanine are double-ring structures
B) thymine and cytosine are only found in DNA,whereas adenine and guanine are found in both DNA and RNA
C) thymine and cytosine are only found in DNA,whereas adenine and guanine are only found in RNA
D) thymine and cytosine are larger nitrogenous bases
Correct Answer
verified
Multiple Choice
A) manufacture of a strand of RNA complementary to a strand of DNA
B) manufacture of two new DNA double helices that are identical to an old DNA double helix
C) modification of a strand of RNA prior to the manufacture of a protein
D) manufacture of a protein based on information carried by RNA
Correct Answer
verified
Showing 41 - 53 of 53
Related Exams