The probable genotype of the IV-3 with the perspective of autosomal inheritance will be A because he does not have condition A. Therefore both parents must be in condition A.
The probable genotype of IV-3 with the perspective of set=linked inheritance will be BbY this is because he has B condition. Therefore the mothers' genotype must be XBXb and the father's genotype must be XBY. 
The probability of IV-4 having condition A is 1/36
        
             
        
        
        
The long bundle of neurons that carries messages to and from the body to the brain and is responsible for very fast, lifesaving reflexes is called the<u> spinal cord. </u>
<h3>
What is the espinal cord?</h3>
There are two organs involved in the central nervous system that function as control centers,
The spinal cord is a nerve tube placed in a hollow space left between vertebras along the vertebral column. The vertebrae's body protects the spinal cord. 
It is made of nerves that take orders from the brain to the rest of the body and send messages from the body to the brain.  
Reflexes acts are produced in the medulla, and the brain is not involved. 
The nervous cells of the medulla have fibers that extend from the medulla to the body and are connected to sensory receptors. 
When receptors receive stimuli, they send information to the nerve fibers, which take it to the brain. From the brain, they send a response. 
The answer is spinal cord. 
You can learn ore about the spinal cord at
brainly.com/question/6957362
brainly.com/question/15707666
 
        
             
        
        
        
Answer:
The zygote will have 96 chromosomes.
Explanation:
If self-fertilization occurs, and two gametes (each having 48 chromosomes) unite, the zygote will have 96 chromosomes ( or 4 sets)
 
        
             
        
        
        
Because the weight is evenly distributed
        
             
        
        
        
Answer:
Do plants undergo photosynthesis, cellular respiration or both? plants undergoes both photosynthesis and cellular respiration
Explanation:
Plants are autotrophs i.e they produce food for themselves through a process called photosynthesis. Cellular respiration occurs both in plants and animals, it allows the conversion of adenosine diphosphate (ADP) into adenosine triphosphate (ATP). Plants needs energy which calls for it to undergo a chemical reaction called cellular respiration