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Q:
Según la segunda ley de Mendel, en la segunda generación filial se produce la segregación de los caracteres, lo que significa que durante la formación de los gametos, los alelos de un par se separan para determinar la constitución genética, De forma que los alelos de los padres se combinan en el descendiente para garantizar la variabilidad genética. Según esta norma, al cruzar individuos de la primera generación (Aa, por ejemplo) o al autofecundarse uno de ellos, se obtiene una proporción fenotípica igual en la descendencia.
Q:
Se ha descubierto que en mamíferos y en la mosca de la fruta Drosophyla melanogaster, hay elementos cromosómicos que influyen en las características genéticas y en la determinación del sexo. Se ha evidenciado que estos componentes cromosómicos, están determinados por un par de cromosomas sexuales que para el caso de la hembra es XX y para el caso del macho es XY. Una rata con una enfermedad catastrófica M (XMXm) se cruzó con un macho normal (XmY). En la descendencia F1 de este cruce, las hembras no heredarán el genotipo:
Q:
5. Which laboratory department performs CB A. Hematology B. Radiology C. Chemistry D. Microbiology
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2. What is the function of a vein? A. Carry deoxygenated blood away from the heart, B. Carry deoxygenated blood to the heart. C. Carry oxygenated blood to the heart. D. Carry oxygenated blood away from the heart.
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What is an inanimate object capable of carrying infectious organism A. Host B. Portal of entry C. Fomite D. Culture
Q:
If the left end of the daughter strand indicated by the arrow in the figure is being synthesized in one continuous piece, then ...
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What is the carbon cycle? The conversion of carbon into fossil fuels The transformation of carbon into nitrogen A natural cycle in which carbon is exchanged among the atmosphere, oceans, soil, and living organism The process by which carbon is absorbed by rocks and minerals
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Decomposition plays a part in the carbon cycle by... leaving organisms buried for millions of years. absorbing carbon from the air into soil. breaking down organic matter and returning its carbon back into the soil.
Q:
Choose the correct answer from the drop down menu to complete the sentence below. Animals contribute carbon dioxide \( \checkmark \), to the carbon cycle by \( \begin{array}{l}\text { Choose ... } \\ \text { Choose... } \\ \text { using photosynthesis } \\ \text { becoming fossils } \\ \text { performing respiration }\end{array} \)
Q:
Differentiate among squamous, cuboidal, and columnar cells?
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