The sperm plasma then fuses with the egg's plasma membrane, the sperm head disconnects from its flagellum and the egg travels down the Fallopian tube to reach the uterus. In vitro fertilization (IVF) is a process by which egg cells are fertilized by sperm outside the womb, in vitro.
<span>Lamprey Disease is an old email hoax from 2007 or earlier that recently resurfaced and went viral on on Facebook, likely because of how uncomfortable it makes any reader. I hope this helps. :)</span>
Which feature listed is not part of the groundwater system?
Answer: underground storage tank is not a major source of groundwater contamination
So basically the Answer is (B) underground spring, if I’m wrong I’m sorry I tired my hardest to help you pass!
D combination of DNA and proteins in the nucleus of a cell
Answer:
D. deamination of cytosine to uracil
Explanation:
Hydrolytic DNA damage is usually a consequence of metabolic reactions and the most common example of this type of damage is hydrolysis of cytosine into uracil with the release of ammonia. This damage can be fixed by the cell's DNA repair system:removal of uracil by an enzyme uracil-DNA glycosylase and consequently generation of an abasic (AP) site. AP endonucleases recognise AP site and break a phosphodiester bond so that lesion can be replaced with another cytosine.
