RNA editing terminal uridylyl transferase, aKa. TUTase 2, aka. RET 2
Answer:
Horses have 64 chromosomes and donkeys 62, so when the two breed their mule offspring ends up with 63. Because this is an odd number, it's impossible for them to divide evenly into two. That means the mule cannot produce sperm and egg cells that carry exactly half the animal's chromosomes, as should happen.Aug 28, 2018
The correct answer is vascular plants. They have two types of tubes, the xylem and the phloem, and one transfers water through the plants, including minerals and useful matter, while the other transfers photosynthesis stuff through the plants. These are pretty much the common plants you see like flowers and trees.