Answer:
The chance of a normal couple having a child with down syndrome is 1 to 600 births.
Explanation:
Down syndrome is a genetic flaw that occurs when the fetus is being formed.
A human cell considered normal has 46 chromosomes, divided into 23 pairs. For some unknown reason, an error may occur at the beginning of embryonic development and an extra chromosome is created, which binds to par 21. The result is cells with 47 chromosomes. This causes the said syndrome.
It is important to know that this failure happens at random. It is nobody's responsibility. It has not been proven to date that lifestyle, actions during pregnancy, smoking, drinking, medicines, environmental factors or kinship between the couple can influence this occurrence. She is not contagious either. The likelihood of a normal couple having a child with the syndrome is approximately 1 to 600 births.
The sequence with the correct word in place would be DNA --> Gene --> Chromosome
<h3>Organization of genetic information</h3>
The basic unit of genetic information is the gene.
Genes are made up of a base sequence of DNA.
Genes are organized into structures known as chromosomes.
Thus, DNA --> Gene ---> Chromosomes
More on genetic information can be found here: brainly.com/question/6663018
The fermentation of ethyl alcohol is a biological process which involves the breakdown of sugars such as glucose, fructose and sucrose into the cellular energy. The cellular energy produced in the form of ATP. This fermentation reaction produces the byproduct’s mainly as ethyl alcohol and carbon dioxide. Hence the correct answer is carbon dioxide and ethyl alcohol.
I would say A. Because it seems like a logical explanation.
Scientists have concluded that the average human body contains approx. 37.2 trillion cells. However it depends upon your size compared an average human being. :)<span />
