I believe the answer you are looking for is a cell cavity. Also known as: Cavity of cell, or cell space
<span>Only one sperm normally fuses
with an egg because if more than one sperm fuses, through a process
called polyspermy, development of the zygote usually stops.
</span>
<span>Fertilization of one egg by
two sperm is possible, but the resulting zygote is almost never viable
because such a zygote would have three sets of chromosomes instead of
the normal two. This condition, called triploidy, is usually
incompatible with life. Those rare triploid infants that do survive to
term have severe and multiple birth defects and rarely live more than a
few days. </span>
The sample will disolve in less than one minute.... temperature changes the rate of reactions......
You can tell it's not a dominant trait because it would show in all the grandchildren.
Recessive
#12 is heterozygous