<span>starfish
</span> All normal eggs from the mother have an X chromosome while usually half the sperm cells from the father have a Y (male) chromosome and the other half have an X (female) chromosome and it is therefore the father's sperm that dictates which gender the embryo will take.
If the egg is fertilized by a sperm with a Y chromosome then the embryo will be a genetic male due to XY chromosome combination.
<span>If the egg is fertilized by a sperm with an X chromosome then of course the embryo will be a genetic female due to XX chromosome combination.</span>
Answer:
D. high fever and sore throat
Explanation:
Human herpesvirus 4 is also known as the Epstein-Barr virus (EBV). Human herpesvirus 4 causes infectious mononucleosis (mono). The virus multiplies first in the epithelial cells and then the released progeny infects the memory B cells. The disease is manifested by sore throat and fever. The fever is mild for the whole day but peaks during the early hours of the evening.
Answer:
17 protons
Explanation:
A neutral chlorine atom contains 17 protons and 17 electrons. By adding one more electron we get a negatively charged Cl⁻ ion with a net charge of -1 and the number of electrons become 18 . But the number of protons remain unchange
