Answer:DNA is antiparallel.
Explanation: DNA is a double stranded helix in which the two strands are antiparallel. Being antiparallel means that as one strand runs from 5'->3' direction, the other strand runs from 3'->5' direction. During DNA each of the two strands serves as a template for a new complementary strand. The synthesis of a new DNA strand is always in the 5'->3' direction, therefore one strand is synthesized continuously in the direction of the replication fork while the other strand is synthesized discontinuously in the direction opposite to the replication fork in short fragments called the Okazaki fragments. The strand that is synthesized continuously is called the leading strand while the strand that is synthesized discontinuously in Okazaki fragments is called the lagging strand.
C no because many species went extinct without leaving fossils behind
The gland that is most likely causing the problem is the parathyroid gland
Smoking, drinking alcohol ,poor nutrition and HIV lowers our immune system .
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Answer: es decir un total de 78,
Explanation:
Los perros tienen 39 pares de cromosomas, es decir un total de 78, de estos 78 cromosomas 39 contienen la información genética de la madre y las otras 39 la información genética del padre. Desde la fertilización del óvulo, comienza el proceso de crecimiento, los núcleos de las células comienzan una multiplicación exacta, de esta forma crean nuevas células. El número de cromosomas en cada especie es constante, salvo que se padezca de algún síndrome el número siempre será el mismo.
