Answer: A cybrid has only combined cytoplasm from two parents while the nucleus is from one parent only.
- A A cybrid has only combined cytoplasm from two parents while the nucleus is from one parent only
- B A cybrid is sometimes mistakenly thought to result from gamete fusion while a somatic hybrid results from protoplast fusion instead
- C A cybrid is sometimes mistakenly thought to be formed by crossing two different species together sexually
- D A cybrid is sometimes mistakenly thought to lack any nuclear DNA from either combined parent organism
Correct answer: A. A cybrid has only combined cytoplasm from two parents while the nucleus is from one parent only
Explanation: A cybrid (cytoplasmic hybrid) is produced by fusing an enucleated protoplast with a whole protoplast, so only the cytoplasm from both parents combines while the nucleus comes from only one parent.
Different fish species occupy different feeding depths in the same pond without competing for food: Catla feeds near the surface, Rohu in the middle zone, and Mrigal or common carp at the bottom - letting a single pond support far more total fish than one species alone.
Concept context
Learn about animal husbandry, plant breeding, tissue culture, biofortification, and single cell protein.
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