Can you write out the question please? :) Sorry, i don't see it on the paper
The state of the atmosphere at a given place and time as regards to heat, dryness sunshine, wind, rain, etc.
Answer:
Explanation:
TRISOMY 21 (NONDISJUNCTION)
Prior to or at conception, a pair of 21st chromosomes in either the sperm or the egg fails to separate. As the embryo develops, the extra chromosome is replicated in every cell of the body. This type of Down syndrome, which accounts for 95% of cases, is called trisomy 21.
