I think it is B .Try the website if anything:)
https://quizlet.com/167677602/lysosomes-flash-cards/
Answer: The genotype for the parent organism whose genotype is unknown is Ff.
Explanation: Let (F) represent the allele for purple which is dominant over (f) and (f) represent the allele for white.
The parent organism whose genotype is unknown is heterozygous for purple colour (Ff).
A cross between Ff and ff will produce four offsprings: two of which are Ff (heterozygous for purple colour) and two are ff (white).
Ff x ff = Ff, Ff, ff and ff.
Since (F) is dominant over (f), (Ff) will manifest as purple while (ff) will manifest as white. Therefore, half of the offsprings are purple while the other half are white.
See the attached punnet square for more information
<span>B. Most organisms tend to be fairly neutral in their pH level. Neutral (or close to) pH levels would be in the range between 5 and 8. A pH level of 7.0 is truly neutral, so anything in that level would be considered close to the mark. 1-4 is highly acidic and has few organisms, while 9-14 would be highly basic/alkaline and also has few creatures.</span>
Answer:
Not likely to be one that high.
Explanation:
A 7 only every 3,400 years so not likely.