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myrzilka [38]
2 years ago
5

A student inherited left handedness from parents who are both right handed. Explain the pattern of inheritance

Biology
2 answers:
Tatiana [17]2 years ago
8 0

Answer:

the left handedness was a recessive trait and skipped one or maybe multiple generations

Explanation:

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Vaselesa [24]2 years ago
8 0

For a student to have inherited left handedness from parents who are both right handed, it means that the left-handed trait is recessive in both parents.

The pattern of inheritance of handedness can, thus, said to be simple dominant/recessive with the right handedness trait being dominant while the left handedness is recessive.

Let us assume that right-handedness is represented by the allele A and left-handedness by the allele a.

The two parents are heterozygous, hence, their genotypes each would be Aa.

                Aa   x   Aa

            AA   Aa   Aa   aa

From the cross, 3/4 of their children would be right handed (AA or Aa) while 1/4 would be left handed (aa). The student in question must have been from the 1/4.

More about dominant/recessive traits can be found here: brainly.com/question/20744588

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Explanation:

A bottleneck effect occurs when a large population of a species suddenly decreases in size due to some type of natural disaster like tsunami, earthquake, volcanic eruption, etc. This is a type of extreme genetic drift because in this many allele which was present in the old larger population might lost and the new population has less allele than previous population.

So here 98% of the population died in the earthquake and the remaining population has broader stripes on average than the initial population therefore here the squirrel population experienced bottleneck effect.

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<h3>What is carbon cycle?</h3>

Carbon cycle is the physical cycle of carbon through the Earth’s biosphere, geosphere, hydrosphere and atmosphere.

It is the series of processes by which carbon compounds are interconverted in the environment, that includes such processes as

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