<span>C. Gametes are the sex cells, and each (sperm and ovum) contain half of the parent's genetic material. These cells will fuse to produce a zygote, which will usually contain the full number of genes required by an organism to live. If there is a chromosomal abnormality, such as a gamete with an extra chromosome, the offspring can either die in development or sometimes be born with physiological and/or developmental difficulties. An example of this phenomenon is trisomy 21, also known as Down Syndrome, in which the 21st chromosome bears 3 copies instead of the regular 2.</span>
A conclusion is a final answer backed by evidence. An inference is a reasonable guess.
According to the evolution theory, the first insects appeared about 400 million years BC in the Devonian Period.
Answer:
kevin deserved it he stole my lunch money
Explanation:
