Which of the following is not part of a chromosome?
a. a strand of dna
b. a gene
c. many proteins
d. many strands of rna

The option that is not part of the chromosomes is D. Many strands of RNA

Explanation:

Chromosomes can be described as structures made up of DNA that is coiled around proteins called histones. The genes are made up of NA and are present on the chromosomes. Each chromosome carries alleles of different genes. Hence, all other options A)A strand of DNA. B) A gene C) Many proteins are all part of a chromosome except for the option D)Many strands of RNA.

RNA is not a part of the chromosomes. The DNA is transcribed into RNA though.

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.