Answer:
There are 32 number of chromosome in egg cells of female horse while 31 number of chromosome in sperm of male donkey so the offspring produce from this fusion is mule having 63 number of chromosome.
Explanation:
Sperm and egg cells are the type of sex cells that contain half number of chromosome. Total number of chromosomes in horse is 64 and its half is 32 while total number of chromosome in donkey is 62 and its half is 31. So the mule have 63 number of chromosome.
Answer:
Origin of Viruses. ... Small viruses started as runaway pieces of nucleic acid that originally came from living cells such as bacteria. Large viruses were once parasitic cells inside bigger host cells. Over time, genes needed to survive and reproduce outside host cells were lost.
Answer:
Higher speed and more weight car applied more force.
Explanation:
Bumper cars will win in a collision because these cars have a very tough front that easily drag opposite car and receive less damage. If the weight of the car is great and speed is high as compared to the opposite car so the car will easily drag another car after collision because the car having more weight and higher speed has applied more force on the opposite vehicles.
Molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers.
Answer:
Cell differentiation.
Explanation:
This is because cell differentiation refer to the process where cell changes from one cell types to tissues or organs or even system or specialised cells during a developmental stages to perform functions. It occur in multicellular organisms where zygote changes to tissues or system.
. This occurs through a process called gene expression. Gene expression refer to the combination of genes that can either be expressed or repressed.
