A) DNA polymerase binds to a single-stranded DNA template (blue) and synthesizes a complementary strand of DNA (red). B) When DNA polymerase randomly incorporates a fluorescently labeled ddNTP ...

APOBEC enzymes, which normally help fight viral infections by mutating viral DNA, cause repeat expansions and are unusually ...

DNA replication is the process by which the DNA molecule makes an exact copy of itself during cell division. The double helix unwinds, and each strand serves as a template for the synthesis of a new ...

DNA replication is one of the most basic ... Later, when the new strand is itself copied, its complementary strand will contain the same sequence as the original template strand.

People genetically susceptible to Huntington's disease often see their movement, mood, and cognition decline slowly over time ...

Original DNA template - DNA is a double helix made of two complementary strands. Each strand can be used as a template to create a new DNA molecule. Free DNA nucleotides – needed to form the new ...

The complementary base pairing in DNA leads to a specific ratio of nucleobases, known as Chargaff's rule. According to this rule, the amount of adenine is equal to the amount of thymine, and the ...

Researchers at Tufts University revealed a possible molecular mechanism explaining how the DNA repeats are broken and then expanded in the Huntington’s disease gene, pointing to a component of the ...

The true identity of Jack the Ripper, whose grisly murders terrorized east London in 1888, has been a mystery ever since.

People genetically susceptible to Huntington's disease often see their movement, mood, and cognition decline slowly over time. The cause is related to expansion of repeating DNA units, in which ...

Free RNA nucleotides form hydrogen bonds with the exposed DNA strand nucleotides by complementary base pairing to form a strand of mRNA: Note - RNA nucleotides contain the same bases as DNA ...