This happens early in embryonic development in females, where one of the two X-Chromosomes is randomly (and permanently) inactivated, as you said, in cells other than egg cells.
This phenomonon is actually called X-Inactivation.
X-Inactivation make sure that females, just like males, have a single functional copy of the X Chromosome in each and every one of their cells in their body.
Glad I could help, byee now
Answer:
D.
Both the femur and humerus bone have what's called 'spongy bone' inside them and hollow spaces full of yellow and red bone marrow. Additionally, both bones do not attach to the axial skeleton but rather attach to the pelvic or hip bones; while they are both strong bones, they are not made of only compact bone but are made of 'spongy bone' inside them. Lastly, they do not protect any organs but rather allow for movement. D, They both have hollow spaces filled with bone-generating cells, is the best answer in this case
Explanation:
False. Hypothermia is caused by the body being exposed to cold weather or immersion to cold water. I hope this answer is what you were looking for.
Answer:
Option D, Zero out of four (0%)
Explanation:
As we know, achondroplasia is an autosomal dominant pattern. Now a girl having normal stature mate with a partner who also has a normal stature.
Thus let us assume -
Allele for disproportionately short arms and legs be represented by "A"
while allele for normal stature be represented by "a"
Now genotype of parents would be
Female - aa
Male - aa
Thus,
aa x aa
aa, aa, aa, aa
Thus, option D is correct.
Answer:
True
Explanation:
that would be my best guess
