When tryptophan is not available in the environment, the trp repressor is inactive. Therefore, RNA polymerase can bind to the promoter.
Answer:
a. increasing birth rate with a greater number of young organisms
Explanation:
When the population growth is increasing in an area there is an increasing birth rate and the age structure begins to young.
Population growth is the increasing trend in population parameters that ensures that more organisms are produced.
The birth rate is the chief factor that populates an area.
When birth rate increases, new and younger organisms are produced and this tips the population towards a very young age.
An ageing population is one where the birth rate is quite low.
Answer:
Hidrólisis y oxidación.
Explicación:
La hidrólisis y la oxidación son las reacciones que ocurren en el paso del alfacetoglutarato a succinato. En el quinto paso hay una hidrólisis del grupo tioéster de CoA en la que los átomos de los compuestos se rompen y luego sustituyen sus elementos miembros. Esta reacción de hidrólisis libera energía y se hace un ATP a partir de ADP. En el paso 6, succinato a fumarato es una oxidación para poner en el doble enlace significa que FAD se reduce a FADH2. Entonces podemos decir que la hidrólisis y la oxidación son las reacciones que ocurren en el paso de Alfacetoglutarato a succinato.
Answer:
The roots organ is genereally placed under the soil and may undero variious modifications. The roots are present in plant that help them to absorb water and nutrient from the soil.
Some plant roots contains the bacteria that helps in the conversion of nitrogen into ammonium ions. The plants changes the roots because the rhizobium present in plant roots helps in the conversion of nitrogen so that it can be used by the plants. The Rhizobium produces ammonium (NH4+) ions.