Hi there :-))
The answer to your question is D. Amniotic egg.
Hope this helps you :-D
Let's me know if it's correct
~TRUE BOSS
<span>C. Gametes are the sex cells, and each (sperm and ovum) contain half of the parent's genetic material. These cells will fuse to produce a zygote, which will usually contain the full number of genes required by an organism to live. If there is a chromosomal abnormality, such as a gamete with an extra chromosome, the offspring can either die in development or sometimes be born with physiological and/or developmental difficulties. An example of this phenomenon is trisomy 21, also known as Down Syndrome, in which the 21st chromosome bears 3 copies instead of the regular 2.</span>
Answer:
True
Explanation:
In phase-contrast objective and a phase contrast optical systems is equipped with Light microscope .
Phase contrast microscope is used to differentiate unstained structures in a cell that differ in refractive indices and thickness. Thus it is usefull for examining living unstained organisms.
Light that passed through materials of different refractive index and/or thickness will undergo a change in Phase. The difference in phase or wave front irregularities cause variation in brightness of the structures.
Hoping this might help!!!
Individuals with these mutations typically have familial hypercholesterolemia.
These genes provide information for the formation of the low-density lipoprotein receptor, a receptor that binds to low-density lipoproteins (LDLs). LDLs carry the cholesterol in the blood and regulate the amount of cholesterol in the circulation. Mutations to these genes either reduce the number of receptors or cause several disruptions to their function. This results in high blood cholesterol levels and in a higher risk for heart disease.
