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allsm
2 months ago
9

Un jardinero cruzó dos plantas de flores rosadas, con la esperanza de obtener plantas con flores del mismo color. Su sorpresa fu

e encontrar que, en la descendencia, aparecían flores rojas, rosadas y blancas en la proporción 1:2:1. Pregunta: a) ¿En qué se diferencia la herencia del color de estas flores y la de los guisantes? b) Indica el genotipo de las plantas del cruzamiento descrito.
Biology
1 answer:
s2008m [2.3K]2 months ago
4 0

Response:

Este es un ejemplo de dominancia incompleta. Se trata de un fenómeno genético que se manifiesta cuando un gen dominante no logra expresar su totalidad en el alelo recesivo en un alelo heterocigoto dominante.

Por ende, ambos rasgos se muestran, dando lugar a una fusión de los dos alelos para los colores (blanco y rojo). El alelo rojo dominante muestra dominio parcial sobre el alelo blanco recesivo, produciendo así el alelo completamente rosado.

Según la ley mendeliana, las dos flores rojas son heterocigóticas. Por lo tanto, las flores rojas dominantes heterocigóticas deben ser R. El alelo blanco es recesivo (rr) y es enmascarado por el R rojo,

Sin embargo, al cruzar los dos alelos heterocigotos rojos:

Los fenotipos derivan en forma de

RR, (1) rojo Rr Rr (2) rosa rr (1) Blanco.

Esto ocurre porque el alelo rojo dominante no era total / completamente dominante sobre el alelo recesivo blanco en ninguno de los casos, resultando en un alelo rosa (el tercer fenotipo)

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Which of the following correctly uses the data to justify the claim that the phosphagen system is an immediate, short-term sourc
lana [2441]

This inquiry lacks adequate details; here is the full question:

Muscle contraction relies on the hydrolysis of ATP. During high-intensity exercise, muscle cells depend on ATP produced by three metabolic pathways: glycolysis, mitochondrial respiration, and the phosphagen system. Figure 1 illustrates the rates at which these three pathways yield ATP following the onset of intense exercise.

Which of the given options correctly utilizes the data to substantiate the assertion that the phosphagen system serves as an immediate, short-term ATP source for muscle cells?

The correct choice that employs data to validate the claim that the phosphagen system is an immediate, short-term ATP source for muscle cells is the one indicating that ATP PRODUCTION BY THE PHOSPHAGEN SYSTEM RISES AND FALLS RAPIDLY AFTER EXERCISE BEGINS.

 The phosphagen system comprises energy-storing compounds found in muscles and the nervous systems of organisms. The biochemical substances constituting the phosphagen system are ATP, ADP, and creatine phosphates (CP). These three compounds are continuously transformed within a pathway known as the ATP - CP pathway.  

ATP and CP act as intermediate energy reserves for the organism. This phosphagen system is crucial for living beings because it provides a prompt source of energy for muscles and nerves, both of which frequently experience fluctuations in energy demand.

The phosphagen system plays a vital role during physical activity, as it is the quickest method to supply muscles with the necessary energy (ATP). At the onset of exercise, there are always rapid variations in ATP production since the phosphagen system delivers immediate energy for active muscles. Energy generated from the phosphagen system is available for only a maximum of 10 seconds, thus, it is paramount for exercises demanding a quick surge of energy for brief durations. The system operates under anaerobic conditions and lasts only for a few seconds.

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4 0
1 month ago
Soil erosion is a process where the top soil layer is washed away because of the effects of water or wind. An agricultural area
inysia [2303]

Solution: To combat soil erosion, plant vegetation to ensure the roots stabilize the soil.

Construct barriers around the agricultural land.

Incorporate natural fertilizers into the soil.

Soil erosion involves the detachment of the topsoil layer, which is then transported elsewhere due to agents such as wind and water. The uppermost soil layers contain a wealth of nutrients and organic matter, making them crucial for seed germination and plant development. Erosion eliminates these nutrient-rich layers, decreasing soil fertility and hindering plant growth.

Vegetation helps anchor the soil with their root systems, reducing erosion caused by wind and water. The construction of barriers around fields prevents floodwaters from infiltrating, therefore mitigating erosion from water. Adding natural fertilizers enriches the soil with nutrients that support plant growth, allowing roots to better secure the soil, which in turn helps to prevent erosion.

4 0
2 months ago
Read 2 more answers
the vertices of a triangle are (2,2),(4,4),and (4,2). Reflect the triangle in the y-axis. Give the coordinates of the reflected
-BARSIC- [2551]
(-2,2) (-4,4) (-4,2) Reflecting across the y-axis changes positive X coordinates to negative and vice versa.
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2 months ago
Can we still recover the lost biodiversity? Why or why not?
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I hope this information is helpful <3

8 0
2 months ago
Explain why the farmer in the scenario below failed to grow crops.
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If I'm correct, please mark it as the best answer; if not, let me know where I went wrong

and feel free to ask me any additional questions. Have a nice day!

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