Answer:
reduced hybrid fertility
Explanation
The formation of mules from the cross between female horses (mares) and male donkeys (jacks) is an example of reduced fertility because the mules are sterile and they cannot give birth to babies.
Reason:
Because mule cannot produce sperms. This has to do with his genetics. A mule has 63 chromosomes in total. He gets 32 chromosomes from his mom (that is a horse) and 31 chromosomes from his Dad (that is a donkey). As we know, it is very important for reproduction that chromosomes hould be present in two sets with equal numbers.
To reproduce he needs equal number of chromosomes because we know during meiosis chromosomes segregate and half number goes in daughter cells. But in case of mules he has an extra chromosome due to which he cannot undergo correct meiosis and produce sperms. That is ahy he stays sterile throughout his life. This is called reduced hybrid fertility
Hope it helps!
At first the cells have the same number of chromosomes as mitosis. DNA replication occurs, giving a total of 46<span> chromosomes (or </span>23<span> chromosome pairs) and </span>92 chromatids<span> (or </span>46 chromatid<span> pairs).</span>
A bean plants plants need sun for the process of photosynthesis
The answer is <span>A) stimuli receiver, sensory neuron, central nervous system, motor neuron, muscle or gland.
Stimuli receiver receives an information. </span><span>The information is sent through a sensory neuron to the spinal cord, as a part of the central nervous system. </span><span>The spinal cord receives information from the body and relays it to the brain. It, then, receives information from the brain and relays it out through a motor neuron to the effectors (muscles or glands).</span>
