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kow [346]
3 years ago
11

How can a pure white mouse help determine the genotype of a black mouse? (Hint: We cannot see genotype but we can see difference

s in the phenotype of their offspring).
Biology
1 answer:
sattari [20]3 years ago
8 0

Answer:

A white mouse is purely recessive, and will produce black offspring if the other mouse contributes a black gene.

Explanation:

If Bb then the offspring will be 50% Bb and 50% bb. This is called a test cross, where we use a recessive to determine the genotype of a dominant phenotype.

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Why are there only 20 amino acids when there are 64 variants of triplets?
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The genetic code is degenerate.

Explanation:

The genetic code is degenerate: there are 64 triplets of different codons (sequence of three bases of mRNA that codes for a certain amino acid) and 20 amino acids. That is, an amico acid can be encoded by more than one codon.

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What is the time of year when the suns most direct rays reach farthest north or south
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summer

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How to create petroleum<br>​
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I observe that squirrels that live in the southeastern United States are much thinner than squirrels that live in the northeaste
stiv31 [10]

Answer:

No, it is not a scientific theory.

Explanation:

  • A scientific theory is a proposition that is made to explain the various phenomena that are occurring in nature and it is supported by experiments that have repeatability and well-analyzed results.
  • Scientific theories are usually tested in experiments under controlled conditions and verified as well.
  • In the given situation, the theory made by the observer is not being tested through any experimentation or quantification and therefore, it is just a hypothesis and not a scientific theory.

6 0
3 years ago
A group of antelope leaving the herd in search of better grassland is an example of
PtichkaEL [24]

Answer:

emigration

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The emigration of an animal, in this case of the antelope, is the cause of the lack of food.

The animals are in constant search of food and better places to cohabitate. Antelope is leaving its herd to find a better place for food and even if it sounds strange, animals are also behaving as individuals in case there is threatening of hunger.

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