Hyperkeratosis is amy lesion with overgrowth and thickening of the skin, such as warts, calluses, and corns.
Helikazlar tüm canlılar için hayatî önem taşıyan bir enzim sınıfıdır. Nükleik asitlerin fosfodiester omurgası üzerinde hareket ederek birbirlerine hidrojen bağlarıyla bağlanmış nükleik asit ipliklerini (DNA'nın, RNA'nın veya RNA-DNA hibritlerinin) ayrıştırır.
True north is a fixed point on the globe. Magnetic north is quite different. Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field. ... However, its position is constantly changing, and soon magnetic north and true north will align.
Explanation:
1) Egg cells only have half the DNA of the organism
2) in an egg cell the DNA from Mum and the DNA from that is mixed up rather than kept separate
3) egg cells are very large compared to the other cells
