Normal human body cells are diploid and the basic chromosomes number of human cell is (n) 23. Thus, a normal human cell has (2n) 46 chromosomes out of which 44 are autosomes and 2 are gender chromosomes XY.
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What are chromosomes?</h3>
Chromosomes are threadlike structure of nucleic acids and protein present in the nucleus of living cells, carry genetic information in the form of genes.
The "X" or "Y" gene which determines whether new born will be a boy or a girl is an example of a chromosome. the below diagram representing the chromosome.
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Answer:
<h3 /><h3>The preparatory test for the SAT is called the <u>PSAT</u>.</h3>
The Preliminary SAT/National Merit Scholarship Qualifying Test (PSAT/NMSQT) is a standardised test administered by the College Board and cosponsored by the National Merit Scholarship Corporation (NMSC) in the United States.
<h3 /><h3>Additional Information:</h3>
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The scientists ensure that their results are reliable by repeating trials.
Given that scientists ensure that their results are reliable.
We are required to tell the way how scientists ensure that their results are reliable.
Reliability is basically defined as the probability that a product, system, or service will perform its intended function adequately for a specified period of time, or will operate in a defined environment without failure.
Reliability increases from repeating trials.It is like vaccines. Firstly the trials to be made on small number of persons, then the numbers increases and then ultimately the trials are done on the large number of persons.
Hence the scientists ensure that their results are reliable by repeating trials.
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