The prophase is when the centrosomes start to move apart (in animals)
I’m assuming it’s going to be positive for bones will release calcium into the blood, bringing the blood calcium levels back up and for negative the brain will sense the decrease and send a chemical message to your bones. I’m not sure if this is right
<span>The relative age of a rock layer is the age of the rock compared to the ages of the rock layer while the actual age of the rock layer is the actual number of years that the rock was formed. The relative age of a rock is generally determined by geologists using the Law of Superposition where the youngest rock is at the top and the oldest rock is at the bottom of the horizontal layer. The actual age of a rock is generally determined using Radiometric Age Dating method that is based on the natural radioactive decay of rock elements.</span>
Answer:
See the answer below
Explanation:
<em>The concluding part of the question can be seen in the attached image.</em>
The correct answer would be that <u>the father did not contribute a sex chromosome to his daughter due to nondisjunction of the sex chromosome. The daughter is XO and her only X chromosome came from the mother who is a carrier.</u>
Since the mother's maternal grandfather had the syndrome and there is no history of it in the father's family, the daughter must have inherited an affected chromosome from her carrier mother. Normal females have two X chromosomes - one from each parent - and would therefore require two affected chromosomes in order for X-linked diseases to manifest in them.
<em>In this case, the syndrome manifested in the daughter because she lacks one X chromosome - a situation caused by a missing X chromosome in the father. Hence, the daughter is XO instead of XX and the single chromosome is an affected chromosome from the carrier mother. </em>