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Which characteristics describe the genetic code of humans? Select three options.
contains over 3 billion base pairs
can only help understand human genetics
can help explain genetic diseases
composed of about 19.000 genes
composed of 23 chromosomes

The options which describe the characteristics of genetic code of humans are:

contains over 3 billion base pairs

can only help understand human genetics

can help explain genetic diseases

Explanation:

The total genetic code in an organism or the genome holds genetic information. This genome or the genetic codes are composed of genes with the genetic codes.

The codes are joined by nitrogenous base pairs on the strands of the double-helix DNA molecule. There are a total of 3 billion nitrogenous base pairs and 21,000 genes which codes the various proteins of the human body to perform various functions.

This genetic code can thus be used to study and understand about hereditary or genetic diseases like cystic fibrosis, Huntington's disease, sickle cell anemia, hemachromatosis etc and follow any corrective measure to prevent the transmission or manifestation of such diseases.

This also helps to know more about human genetics and other related factors like evolutionary changes, hereditary transmission, migratory pattern, ancestry and other genetic related anthropological issues.

There are a total of 23 pairs of chromosomes present in human gametes.

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Explanation:

Number 2 is incorrect. Instead if number 2 it is actually composed of about 19,000 genes.

true is the