Gametes are haploid cells, the haploid number is n = 23, and each parent could provide half of the centromeres. Hence, the fraction of a man’s gametes that contain centromeres inherited from the same parent is 1/2²³.
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We know that the diploid number in humans is 2n=46. This means that the haploid number is n=23.
We need to know the fraction of a man’s gametes that contains centromers inherited from the the father or the mother.
A gamete has 23 chromosomes.
<em>Half of the centromers could be inherited by the </em><em>father (1/2)</em><em> and half by the </em><em>mother (1/2)</em><em>. </em>
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So the fraction should be 1/2ⁿ = 1/2 ²³
- 1/2 because half of the centromers could be inherited by the father or the mother
- n because is the haploid number of chromsomes in the gamete ⇒ n = 23
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Related link: brainly.com/question/1454118 referrer=searchResults
A group of cells<span> that performs a similar </span>function<span> is known as a tissue. Multicellular organisms such as animals all contain differentiated </span>cells<span> that have adapted to perform specific </span>functions<span>. These differentiated </span>cells group<span> together to form tissues.</span>
Answer;
-Myelination
Explanation;
-Myelination is the process in which neural fibers are coated with an insulating fatty sheath (called myelin) that improves the efficiency of message transfer.
-Most nerve fibers are surrounded by an insulating, fatty sheath called myelin, which acts to speed up impulses. The myelin sheath contains periodic breaks called nodes of Ranvier. By jumping from node to node, the impulse can travel much more quickly than if it had to travel along the entire length of the nerve fiber.
B. sunlight
Autotrophs obtain energy through photosnthesis ( the sun)
Answer:
Cells need oxygen and glucose.
Without oxygen, electron transport chain cannot take place and the cells cannot get the energy they need (since the cell uses oxygen to break down glucose which os what produces energy). When the cells cannot perform their function, they die.
