Earth's atmosphere is composed of air. Air is a mixture of gases, 78% nitrogen and 21% oxygen with traces of water vapor, carbon dioxide, argon, and various other components.
Lymphatics of the skin travel in loose subcutaneous connective tissue and generally follow the routes of veins.
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Davinia.
Answer: the botanist Matthias Schleiden and the zoologist Theodore Schwann stated
Explanation: This Cell Theory has been influential in shaping the biological sciences ever since, in 1838/1839, the botanist Matthias Schleiden and the zoologist Theodore Schwann stated the principle that cells represent the elements from which all plant and animal tissues are constructed.
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Answer:
D) with the phosphodiester backbone and with bases via the minor groove
Explanation:
The double helix is a fairly rigid and viscous molecule of immense length and a small diameter. In this molecule a major groove and a minor groove can be observed.
The major groove is deep and wide, the minor groove is shallow and narrow.
DNA-protein interactions are essential processes in cell life (activation or repression of transcription, DNA replication and repair).
Proteins bind to the inner part of the DNA grooves, through specific junctions: hydrogen bonds, and non-specific junctions: van der Waals interactions, and other general electrostatic interactions.
The proteins recognize donors and acceptors of hydrogen bonds, methyl groups (hydrophobic), the latter exclusive of the major groove; There are four possible patterns of recognition in the major groove, and only two in the minor groove (see figures).
Some proteins bind to DNA through the major groove, some others through the minor groove, and some need to bind to both, but the nucleosome form hydrogen bonds via the minor groove with the phophodiester backbone.
Answer:
Las mutaciones de novo pueden causar enfermedades genéticas comunes, incluyendo alteraciones en el desarrollo neurológico, tales como la discapacidad intelectual, el autismo y ciertas formas de epilepsia, o también ocasionar síndromes genéticos menos frecuentes, como la acondroplasia o el síndrome de CHARGE.
Explanation:
