Answer:
they are caused by mutations of the X chromosome
Explanation:
The X chromosome contains many genes in addition to those that determine sex. Certain hereditary defects determine by recessive genes are linked to the X chromosome. The disorders are caused by mutations of the X chromosomes.
Answer:
Environments are constantly changing and animals can often adapt to these changes. Climate change also is forcing animals to interact with each other in new ways. For example, as the sea ice melts,polar bears spend more time on land, which brings them into greater contact with brown bears.
PanAdded Water?Froze the pan?1yesyes2yesno3noyes4nono
Then she compares the clay in all four of her pans. The clay in pan #4 was the same at the end of the experiment as it has been at the beginning. The clay in pan #1 had changed and broken up more than the others.
Which of the following conclusions could Patsy have made?
Frozen clay takes up more space than thawed clay does.
Adding water to clay and then freezing it breaks the clay apart more than either freezing it or adding water to it alone.
Adding water to clay and then freezing it helps plants to grow in the clay more than either freezing it or adding water to it alone.
Wet clay takes up more space than dry clay does.