<span>Watson and Crick determined the base pairing by using the new information to construct a new double-stranded helix model with the nitrogen bases paired A to T and C to G in the center. This base pairing immediately suggested to Crick that one side of the molecule could serve as a template to exactly replicate DNA sequences to pass on genetic information during cell reproduction. This second, successful model was unveiled in February 1951.</span>
Answer:
1) The rocks are probably the same age.
<u>If two rocks both contain the same type of index fossil, their age is probably very similar.</u>
2) Eon
Definition of Eon: An immeasurably or indefinitely long period of time
Answer:
Spindle fibers move chromosomes during cell division by attaching to chromosome arms and chromosome centromeres. A centromere is a specific region of a chromosome where duplicated chromosomes are joined. The identical, joined copies of a single chromosome are known as sister chromatids. The centromere is also where specialized protein complexes called kinetochores are found.
Explanation:
It carries impulses to the neuron cell body