English system is used by the US.
It is made of ultra basic rocks:))
The correct answer is the one that shows a bone having the most porous appearance inside.
Osteoporosis is a disease of the different types of bone tissue that make up bone ("cortical bone" and "trabecular bone").
It is a disease that is related to a decrease in the amount of bone tissue in the bones and / or an alteration of its structure: thinning of the cortex and bone trabeculae that become porous.
The cause is an imbalance between the deficit activity of osteoblasts and normal osteoclastic bone resorption.
Answer:
The correct answer is - zero.
Explanation:
In the given heterozygous mouse with the genotype of AaBbCcDd, there are 4 different genes are present with there recessive forms A, B, C, and D and a, b, c, and d. In the heterozygous condition, there is always only one copy of both variants of a gene present.
By independent assortment and law of segregation, there are multiple gametes can be formed but as there is only one copy of each gene form or allele, the chances of the having two copies any allele of particular gene such as AA, BB, CC, DD, or aa, bb, cc, dd together is not possible.
Thus, the correct answer is - zero.
