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Multiple Choice
What was discovered in the initial mating experiment between glowing fish?
A
The glowing trait could be inherited by offspring.
B
Glowing fish could not reproduce with non-glowing fish.
C
The glowing trait disappeared after one generation.
D
The glowing trait was only present in female offspring.
Verified step by step guidance
1
Understand the context of the problem: The question is about the inheritance of a trait (glowing) in fish, which involves principles of genetics and reproduction.
Review the concept of inheritance: Traits are passed from parents to offspring through genetic material (DNA). Dominant and recessive traits, as well as patterns of inheritance, play a role in determining how traits appear in offspring.
Analyze the options provided: Each statement represents a possible outcome of the experiment. Consider the biological feasibility of each option based on principles of genetics and reproduction.
Evaluate the first option: 'The glowing trait could be inherited by offspring.' This suggests that the glowing trait is genetically passed down, which aligns with Mendelian inheritance if the trait is encoded in the DNA.
Consider the other options: 'Glowing fish could not reproduce with non-glowing fish' implies reproductive isolation, which is unlikely unless there are significant genetic or physical barriers. 'The glowing trait disappeared after one generation' suggests the trait is not heritable or recessive. 'The glowing trait was only present in female offspring' implies sex-linked inheritance, which would require further evidence to confirm.