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Compare and contrast the oxidation of polyunsaturated fatty acid and odd number chain fatty acids
In the social constructivist view, learning occurs through participation. How can you relate to this? Can you recall any instances, in any context, where you learnt through participation? Discus your experiences with the social constructivist view in min
How are neurons similar to other cells? How are they unique?
Scientists nowadays looking for life in Mars planet. In a research funded by NASA, a team of scientist have synthesized a new genetic material molecule known as “Mars-X” that can be used for living organism in the planet. The chemical composition of this molecule is almost similar to that of life on Earth. As a young scientist, what properties should “Mars-X” molecule have?
a. A certain form of sickle cell anemia is caused by an autosomal recessive allele. Assume that the mutation rate is 1 x 10-5 and that persons having this condition can only produce about 80% of the normal offspring.
i. At equilibrium between mutation and selection, what will the frequency of the allele for sickle cell anemia be? Show your calculation.
a. A recessive allele for green eye (g) has a frequency of 0.25 in population Y and a frequency of 0.025 in population Z. A food shortage in population Y causes a number of people in population Y to migrate to population Z, where they reproduce randomly with the members of population Z. Geneticists estimate that after migration, 25% of the people in population Z consist of people who migrated from population Y.
i. Determine the frequency of green eye in population Z after the migration by showing its calculation.
Explain why Malate has negligible absorbance in the U.V. (ultraviolet) region compared to Fumarate. Use structural diagrams for both molecules as references.
The composition of PBS is 0.137M NaCl, 0.012M Phosphate, 0.0027M KCl, pH 7.4. Below is the protocol to make 1 litre of 10x concentrate PBS.
Combine the following:
- 80g NaCl
- 2g KCl
- 14.4g Na2HPO4 (dibasic anhydrous)
- 2.4g KH2PO4 (monobasic anhydrous)
- 800mL distilled H2O
- Adjust pH to 7.4 with HCl
- Add H2O to 1L
- Autoclave for 20 minutes on liquid cycle. Store at room temperature.
Which ions are being produced by this process, assuming that each of the chemical compounds dissociate into their constituent parts once they are dissolved in water?
In a comparative analysis of the structure of the skin of the finger and the scalp, it was noted that the
skin of the finger has more developed granular,lucida and stratum corneum layers of the epidermis,
as well as the dermis. Can this be explained by the functional features of the skin of various parts of
the body and how?
Explain the significance φ, ψ contour diagram in proteins and explore how is it interpreted?
