Many cells associated with a variety of cancers have mutations in the p53 gene. Why are mutated tumor suppressor genes, like p53, considered recessive mutations

it is a recessive mutation because one functional copy of the p53 gene is sufficient to maintain the normal phenotype (i.e., one functional copy of the p53 gene can protect from cancer)

Explanation:

The p53 gene encodes a protein that plays a critical role in controlling the cell cycle. It is for that reason that the p53 gene is referred to as a "tumor suppressor" gene which acts to suppress tumor cells. Moreover, it is well known that when individuals inherit only one functional copy of this gene (instead of two normal alleles), they are normal but also prone to develop different types of cancers during early adulthood. The Li-Fraumeni syndrome is a genetic (inherited) predisposition to cancer due to the inheritance of a mutated p53 gene copy.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.