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GenaCL600 [577]
2 years ago
6

If a heterozygous individual of genotype Bb is testcrossed to a recessive parent (bb), what will the phenotypic ratio of the pro

geny be?
Biology
1 answer:
djverab [1.8K]2 years ago
3 0
Bb × bb = 2 Bb : 2 bb = 1 Bb : 1 bb

Thus, the phenotypic ratio would be 1 Dominant Phenotype : 1 Recessive Phenotype.
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7 0
3 years ago
Crickets "chirp" by rubbing their wings or legs over each other. This phenomenon is known as stridulation. It is a means by whic
Iteru [2.4K]

Answer:

a. As the temperature rises, the cricket chirp occurs more rapidly therefore increasing. It is correct.

b. As the humidity rises, the cricket chirp frequency occurs more rapidly therefore increasing. It is incorrect. The increase in humidity does not affect the chirp frequency in crickets.

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As temperature increases, the frequency of cricket chirp increases too. After listening to the audios, we can see that in the first audio, where the temperature is 14° Celcius, the frequency is 24 chirps in 15 seconds. In the second audio, with 19° Celcius, the frequency is 28 chirps in 15 seconds. In the last audio, where the temperature is 24° Celcius, the chirp's frequency is 34 chirps in 15 seconds. In conclusion, if the temperature increases, the chirps' frequency increases too.

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