A karyotype views the nucleus of the cell and the inspects the number and the appearance of the chromosomes. This would mean that the nature of the problem could be
<span>A) extra chromosome; insertion
AND
</span>D) mutated chromosome; crossing over<span />
Answer:
B. the wind tunnel must be run by highly skilled workers.
correct me po if imma wrong ^-^
Answer:
The first living things on Earth, single-celled micro-organisms or microbes lacking a cell nucleus or cell membrane known as prokaryotes, seem to have first appeared on Earth almost four billion years ago, just a few hundred million years after the formation of the Earth itself.