Answer: The correct answer is -
The phenotypic ratio for this cross is 3:1 ( short tail: long tail).
As per the information in the question, short tail of cat (depicted by T allele) is a dominant trait over long tails of cat (depicted by t allele), which is a recessive allele.
A dominant trait always masks the expression of recessive trait.
There can be two possible genotype for short tails, which are 'TT' and 'Tt'.
On the other hand, there is only one possible genotype for long tail, which is 'tt'.
Thus, from the given cross, we can conclude that the phenotypic ratio, representing the physical appearance of tail that is short and long tails is 3:1 (short tails: long tails).
Acetyl-CoA is needed to start the Kreb Cycle.
Answer:
B.) Take samples from the same location each time.
Explanation:
The original answer choices to this question are the following:
- Provide details about the creatures in the "other" category.
- Take samples from the same location each time.
- Collect samples from nearby lakes for comparison.
- Use a more sophisticated net to collect smaller creatures.
Phoebe should take samples from the same location, rather than four different locations. This will overall give her more accurate and reliable results. Some areas of the lake will have more or less wildlife depending on what predators and prey live. She must have a control variable in this survey, otherwise her data will not be correct.
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