QUESTION IMAGE
Question
building the ladder: the rungs
the
ungs\ of the ladder are made of the nitrogen - containing bases.
there are four different bases in dna.
complementary base pairing
the bases always pair up in a specific way. this is known as
(a) always pairs with _ (t)
(g) always pairs with _ (c)
the two strands are held together by weak _ between the paired bases.
the genetic code
the most important part of dna is the _ (the order) of the bases.
the specific order of as, ts, cs, and gs is the _
this code contains the instructions for building proteins, which determine all of an organisms traits.
example sequence: attgcgact
lets practice
if you know the sequence of one dna strand, you can figure out the sequence of its other strand.
strand 1: a g c t a g c a t g c a t g c a
strand 2:
summary
dna is the _ shaped like a double helix.
it is built from _ (phosphate, sugar, and _)
the bases follow a strict pairing rule: a pairs with t, g pairs with c.
En la estructura del ADN, las bases nitrogenadas se emparejan de manera complementaria. Adenina (A) siempre se empareja con Timina (T), y Citosina (C) siempre se empareja con Guanina (G). Estas uniones se mantienen mediante enlaces de hidrógeno débiles. El código genético está dado por el orden específico de estas bases, el cual contiene las instrucciones para la síntesis de proteínas. Dado el Strand 1: A G C T A G C A T G C A T G C A, el Strand 2 tendrá la secuencia complementaria: T C G A T C G T A C G T A C G T. El ADN tiene una estructura en doble cadena, similar a una escalera, y está formado por nucleótidos que contienen un azúcar, un grupo fosfato y una base nitrogenada.
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- (A) siempre se empareja con (T)
- (C) siempre se empareja con (G)
- Strand 2: T C G A T C G T A C G T A C G T
- ADN es una molécula en doble cadena
- Es construido a partir de nucleótidos (azúcar, grupo fosfato, base)