Answer:
The correct answer is - phase 2.
Explanation:
Erythropoiesis or the development of the erythrocytes is the process to which the development of the erythrocyte cells from the bone marrow to the mature RBC. The development of these cells involved the three phases.
During second phase involves the differentiation of the precursors of the three different type of erythrocytes that are polychromatophilic, proerythroblasts, and orthochromatic erythroblasts. It also includes building up the color of the hemoglobin that overwhelms the color of ribosomes that is blue color.
Thus, the correct answer is - phase 2.
Answer: By definition, if the atomic number =
7
, then there are 7 protons, 7 electrons, and 8 neutrons!
Explanation:
The atomic number is by definition the number of protons, positively charged particles, contained within the atomic nucleus. So if there are 7 protons, there MUST be 7 electrons, 7 negatively charged particles. Why? Because matter is electrically neutral, and positive and negative particles must be equal.
Electrons have negligible mass; the mass number depends on the number of protons contained within the nucleus, PLUS the number of neutrons. Given that we have 15 N
, there must be 8 neutrons contained within the nucleus. does this help?
They both help to draw water into a plant's stem, roots, ect.
by experimenting the layers of the earth
Pregunta completa: un caballo negro de antepasados desconocidos fue apareado con cierto numero de yeguas de color rojo de raza pura, estos apareamientos dieron 20 descendientes de colo rojo y 25 de color negros.
A) cual de dichos caracteres fenotipicos es mas probable que este causado por un homocigoto recesivo?
B) segun su hipotesis cuantos individuos de cada clase habrian esperado
Answer:
A) El color rojo es causado por un genotipo homocigota recesivo
B) Se habrían esperado 22.5 individuos negros y 22.5 individuos rojos, que juntos sumarian un total de 45 individuos.
Explanation:
El desarrollo del problema se encuentra disponible en el archivo adjunto
