Answer: B - Were your parents or grandparents ever diagnosed with Huntington's disease?
Explanation: In autosomal dominant disorder, affected offsprings must have an affected parent. Unaffected parents do not transmit the disease.
Since the disease is caused by a dominant allele, the young man would only be at risk of having Huntington's disease if his parents or grandparents had ever been diagnosed with the disease. He needs not to worry if his parents or grandparents had never been diagnosed with the disease.
His cousin who has been diagnosed with the disease could have inherited the allele from his other parent.
Eukaryotic cell
A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. Both plant and animal cells are eukaryotic cells.
<span>The advantage is that eukaryotic cells have a nucleus which functions formally as to store the DNA of the cell which can translate into many functions such as cell division and work structure between cells that forms the hierarchial function to tissues.<span>
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Answer:
Polydactyly in the Amish population is an example of Founder effect
Explanation:
Founder effect is defined as loss of genetic variation as it occurs when a new population is formed by small number of individuals that are diverge from the a large population.
Polydactyly is an example of these founder effect that causes formation of extra finger which takes place when a a polydactyly man marry within their own community. As a result,genetic variation does't takes place among them and thus the offspring carry recessive genes which leads to this type of rare genetic disease.
<span>Answer:
In symmetrical cell division, the cytoplasm of the parent cell is distributed equally between the two daughter cells, resulting in daughter cells of equal size. In asymmetrical cell division, the cytoplasm of the parent cell is distributed unequally between the two daughter cells, resulting in daughter cells of different sizes.</span>
The best and most correct answer among the choices provided by the question are the following
<span> people live longer human populations are larger people are more likely to move travel is easier and more convenient people can find mates from distant places people who move may change populations permanently</span>
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