Translation occurs in the nucleus to produce a pre-mRNA molecule. The pre-mRNA is the processed into the mature mRNA which exists the nucleus and is translated into the cytoplasm.
So, the answer is B) NUCLEUS
The process of development of adults from the unfertilized egg is known as parthenogenesis. Parthenogenesis occurs in insects such as bees, wasps and bumble bees. Normally, males are produced in these insects. The individuals develop from unfertilized eggs and contain the single (haploid) set of chromosome.
Answer:
The stem cells was discovered by Ernest McCulloch and James Till in 1981. Studies conducted for stem cells can be used for bone marrow transplantation and to treat various diseases.
Explanation:
Stem cell are the cells that has the ability to differentiate into different cells of the body. In 1978 human cord blood discovered as stem cell. The stem cell research come to known in 1981.
Ernest McCulloch and James Till discovered the stem cell research while working on the mice bone marrow. He found that the different blood cells were formed by the single class of cells.
Experiments on mice and other animals have been conducted to study the stem cells so far. The study of stem cell is useful to cure the genetic defects, Cancer and other harmful diseases.
1 mol 2 mol
84g of N2(g) = 84/28 = 3 mol of N2(g)
From the above reaction 1 mol of N2(g) gives 2 mol 0f NH3(g). So 3 mol of N2(g) should give 6 mol or (6x17) 102 g of NH3(g). But we are getting only 85.0 g of NH3.
Hence %yield of NH3 = 100x85.0/102 = 83.3%
Answer D. is correct.
2. 2HgO (s) --------------------- 2Hg (l) + O2 (g)
2 mol 2 mol 1 mol
4 mol 4 mol 2 mol
As only 1.5 mol of O2 is obtained, so % yield = 1.5x100/2 = 75.0%
Moreover 603 g of Hg = 603/200.59 = 3.00 molof Hg. Considering this also
% yield = 3x100/4 = 75%
Answer:
The set of characteristics provided by Audesirk and Audesirk are:
Animals are multicellular.
Animals are heterotrophic, obtaining their energy by consuming energy-releasing food substances.
Animals typically reproduce sexually.
Animals are made up of cells that do not have cell walls.
Explanation:
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