<span>The answer is A. rock ages. B and C are common for topographic maps, and D is common on all maps. But only geologic maps show rock ages.
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Answer:
c. 0.026
Explanation:
Suppose the population is in Hardy-Weinberg equilibrium. According to it,
p + q = 1
p² + 2pq + q² = 1
where p= frequency of dominant allele
q = frequency of recessive allele
p² = frequency of homozygous dominant genotype
q² = frequency of homozygous recessive genotype
2pq = frequency of heterozygous genotype
Here, q = w = 0.84
p = W = 1 -w = 1- 0.84= 0.16
W² = 0.16 * 0.16 = 0.0256 = 0.026
Hence, frequency of the homozygous dominant genotype = 0.026
Answer:
The correct answer is: Gene Therapy.
Explanation:
- Gene therapy can be defined as a broad biomedical and biotechnological technique by which diseases resulting due to the inheritance of mutated or inaccurate gene sequence from the parents or the generation of a sudden mutation in the genome of a person during the course of his life can be prevented.
- RNAi or RNA interference technology is one of the many techniques used to correct various hereditary or gene related disorders.
- In this technique, small oligonucleotides of RNA (Ribonucleic acid) of 22 to 24 nucleotides in length are used to bind to the complementary sequence present in the mRNA (messenger RNA) molecules.This results in the generation of double stranded RNA molecules which functions in two ways:
- They are recognised by RISC or RNA-induced silencing complexes, having endonuclease activity. The RISC complex cleaves and degrades the target mRNA and hence prevents the formation of the target protein.
- The double-stranded RNA molecules stalls the ribosomes and prevent their progression along the mRNA molecules, hence protein synthesis in inhibited.
- This technique is useful in the following ways:
- Cancer often results due to the unregulated activation of the oncogenes which are responsible for promoting uncontrolled growth and division in cells. The use of RNAi can prevent the expression of the onco-proteins which are majorly responsible for causing cancer.
- Alzheimer's disease is often caused due to the accumulation of misfolded amyloid beta and tau proteins in the neurons. The RNAi technology can be used to prevent the formation of the improperly folded proteins.
1. Note the amounts of atoms of all the component in HNO3, which are 1 atom of Hydrogen, 1 atom of Nitrogen and 3 atoms of Oxygen. Multiply each of the atomic weights by the amount of atoms of each element contained in the compound. Add up the results to obtain the molar mass: 1 + 14 + (16 x 3) = 63 gr/mole.
2. In one molecule of sodium sulfate, or Na2 SO4, there are seven atoms in all.
3. Magnesium dichloride is a magnesium salt comprising of two chlorine atoms bound to a magnesium atom. It is a magnesium salt, an inorganic chloride and a magnesium halide.
Between A and T there are 2 hydrogen bonds, while there are 3 between C and G.
