Genes are heredity that are transferred from a parent to offspring and determine a physical or mental characteristic for the offspring
About 95% of the time down syndrome is caused by “trisomy 21.”the person has three copies of chromosome 21, instead of the usual two copies, in all cells. This is caused by abnormal cell division during the development of the sperm cell or the egg cell.
The answer to the following question:
<span>Mitosis result results in four genetically different haploid cells? A. True
B. False
is:
false
</span>
The purpose of RNA is to transfer amino acids to ribosomes for incorporation into a polypeptide undergoing synthesis.
