All of his offspring will be free of the disease, assuming his wife is not a carrier.
The phenotype of an organism is a collection of its observable traits or characteristics. The term describes the physical form and structure of an organism as well as its physiological and biochemical traits, behavior, and results of that behavior. The blood clots incorrectly as a result of hemophilia, a genetic bleeding disorder. Both spontaneous bleeding and bleeding after an injury or surgery may result from this. Numerous clotting proteins found in blood can help to stop bleeding. Blood clotting is impaired by a rare disorder called hemophilia. It happens as a result of the body not producing enough of a protein called a clotting factor. Clotting aids in stopping the bleeding after an injury or accident. In the absence of coagulation, bleeding may be excessively simple or prolonged. There is currently no known cure for hemophilia, despite the fact that treatment for those with the condition has significantly improved over the past few decades.
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Answer:
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Explanation:
Explanation:
The Earth's geologic past is divided into hierarchical time periods. This hierarchy comprises eons, eras, times, epochs, and ages, from largest to smallest. The Cenozoic, Mesozoic, and Paleozoic Periods are the three main divisions of the Phanerozoic.
This statement is true, because the warmer the temperature, the faster the atoms move in a liquid
There are all sorts of ways to reconstruct the history of life on Earth. Pinning down when specific events occurred is often tricky, though. For this, biologists depend mainly on dating the rocks in which fossils are found, and by looking at the “molecular clocks” in the DNA of living organisms.
There are problems with each of these methods. The fossil record is like a movie with most of the frames cut out. Because it is so incomplete, it can be difficult to establish exactly when particular evolutionary changes happened.
Modern genetics allows scientists to measure how different species are from each other at a molecular level, and thus to estimate how much time has passed since a single lineage split into different species. Confounding factors rack up for species that are very distantly related, making the earlier dates more uncertain.
These difficulties mean that the dates in the timeline should be taken as approximate. As a general rule, they become more uncertain the further back along the geological timescale we look. Dates that are very uncertain are marked with a question mark.