Answer:
A dominant allele is denoted by a capital letter (A versus a).Since each parent provides one allele, the possible combinations are: AA, Aa, and aa. Offspring whose genotype is either AA or Aa will have the dominant trait expressed phenotypically, while aa individuals express the recessive trait.
Un ribosoma es una partícula celular hecha de ARN y proteína que sirve como el sitio para la síntesis de proteínas en la célula. El ribosoma lee la secuencia del ARN mensajero (ARNm) y, utilizando el código genético, se traduce la secuencia de bases del ARN a una secuencia de aminoácidos.
<h3>
Most railroad tracks are built from pieces of steel supported by wooden ties, and laid with a gap between the ends. </h3>
Explanation:
The reasons are:
Firstly , the thermal expansion of solid at higher temperatures.
During the summer season, the steel tracks may expand due to thermal expansion and if gaps are not laid the tracks will bend and lead to accidents.
Secondly, imbibition of water during rainy season.
During the rainy season the wooden tracks will imbibe water and swell. If gaps are not provided, this may result irregular levels of railway track. This may prove very dangerous and lead to railway accident.
Answer:
To drain his bile into a controlled via in order to fasten the healing process and avoid possible leakages of bile into other parts of the body.
Explanation:
A T-tube is a draining tube used <em>to </em><em>provide external drainage of bile</em><em> into a controlled via during the healing process, </em><em>this prevents the build-up of bile and therefore its leakage from the common bile duct into the tummy</em><em>, avoiding a potentially life-threatening infection. </em>
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Answer:
a) The response indicates that a pH below or above this range will most likely cause enolase to denature/change its shape and be less efficient or unable to catalyze the reaction.
b)The response indicates that the appropriate negative control is to measure the reaction rate (at the varying substrate concentrations) without any enzyme present.
c)The response indicated that the enolase has a more stable/functional/correct/normal protein structure at the higher temperature of 55°C than at 37°C because the enzyme is from an organism that is adapted to growth at 55°C.
Explanation:
Enolase catalyzes the conversion of 2-phosphoglycerate to phosphoenolpyruvate during both glycolysis and gluconeogenesis.In bacteria, enolases are highly conserved enzymes and commonly exist as homodimers.
The temperature optimum for enolase catalysis was 80°C, close to the measured thermal stability of the protein which was determined to be 75°C, while the pH optimum for enzyme activity was 6.5. The specific activities of purified enolase determined at 25 and 80°C were 147 and 300 U mg−1 of protein, respectively. Km values for the 2-phosphoglycerate/phosphoenolpyruvate reaction determined at 25 and 80°C were 0.16 and 0.03 mM, respectively. The Km values for Mg2+ binding at these temperatures were 2.5 and 1.9 mM, respectively.
Enolase-1 from Chloroflexus aurantiacus (EnoCa), a thermophilic green non-sulfur bacterium that grows photosynthetically under anaerobic conditions. The biochemical and structural properties of enolase from C. aurantiacus are consistent with this being thermally adapted.
