Which of the following is not a structure of the T even bacteriophage?
collar
spores
tail pins
None of the above
The Correct Answer is B
A. Collar: T-even bacteriophages (e.g., T4) have a collar/neck region between the head and tail.
B. Spores: Spores are produced by bacteria (endospores) or fungi, not part of a bacteriophage’s anatomy.
C. Tail pins: T-even phages have a baseplate with tail pins/spikes used for attachment.
D. None of the above: This option does not apply because spores are not part of a bacteriophage.
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Related Questions
Correct Answer is A
Explanation
A. ribosome: The molecular machinery (ribosomes) is the site where mRNA is translated into polypeptides -the central site of protein synthesis.
B. plasmid: Plasmids are extra-chromosomal DNA elements carrying genes (e.g., for antibiotic resistance) and do not carry out protein synthesis.
C. cytoplasm: The cytoplasm is the cellular compartment where translation occurs (because ribosomes are located there), but the specific site of synthesis is the ribosome.
D. pilli: Pili (pilli) are external appendages involved in attachment and conjugation, not in making proteins.
Correct Answer is B
Explanation
A. Collar: T-even bacteriophages (e.g., T4) have a collar/neck region between the head and tail.
B. Spores: Spores are produced by bacteria (endospores) or fungi, not part of a bacteriophage’s anatomy.
C. Tail pins: T-even phages have a baseplate with tail pins/spikes used for attachment.
D. None of the above: This option does not apply because spores are not part of a bacteriophage.
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