The unknown type of corn had to be
yellow.
There were offspring that were red and yellow.
The red corn only has recessive alleles (r and r) so, the yellow alleles( R) didn't came from this type. They came from a yellow type corn.
And since the offspring were NOT all yellow (the dominant color) we know that the yellow corn was
heterozygous for the color trait (Rr).
50% red (rr)
50% yellow (Rr)
Penetration of the egg' zona pellucida by the sperm cell is a process driven by hydrolytic enzymes.
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The critical step in fertilization is binding between sperm receptors and glycoproteins on the zona pellucida. This is the trigger for the acrosome reaction which includes an influx of CA and a rise in pH and cAMP levels within the sperm head. As a result, the plasma membrane of the sperm fuses with the outer acrosomal membrane and the exocytosis of the acrosomal<span> vesicle occurs. Components of the acrosome, like hydrolytic enzymes, are released and they degrade the <span>zona pellucida allowing</span> the sperm to move </span>inside.</span>
Answer:
The arrow points from the organism being eaten to the organism that eats it.
Explanation:
They come from crementation which is when disolved minerals are deposited in tiny spaces...
It seems that you have missed the given options for this question, but anyway here is the answer. Since an amoeba is a unicellular organism that doesn't have a stomach, its f<span>ood storage and digestion take place inside a food vacuole in the cytoplasm of amoeba. Once digested, it reaches each cell organelle. Hope this answer helps.</span>
