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H&R Block, Inc., or H&R Block, is an American tax preparation company operating in Canada, the United States, and Australia. The company was founded in 1955 by brothers Henry W. Bloch and Richard Bloch . As of 2018, H&R Block operates approximately 12,000 retail tax offices staffed by tax professionals worldwide.
Richard Adolf Bloch (February 15, 1926 – July 21, 2004) [1] [2] was an American entrepreneur, and philanthropist best known for starting the H&R Block tax preparation and personal finance company with his older brother Henry in 1955. His personal experience with cancer led him to invest in helping others fight and overcome the disease.
The TATA box consensus sequence is TATAWAW, where W is either A or T. In molecular biology, the TATA box (also called the Goldberg–Hogness box) [1] is a sequence of DNA found in the core promoter region of genes in archaea and eukaryotes. [2] The bacterial homolog of the TATA box is called the Pribnow box which has a shorter consensus sequence .
During meiosis, homologous recombination can produce new combinations of genes as shown here between similar but not identical copies of human chromosome 1. Homologous recombination is a type of genetic recombination in which genetic information is exchanged between two similar or identical molecules of double-stranded or single-stranded ...
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Bell Labs is an American industrial research and scientific development company. Researchers from there are credited with the development of radio astronomy, the transistor, the laser, the photovoltaic cell, the charge-coupled device (CCD), information theory, the Unix operating system, and the programming languages B, C, C++, S, SNOBOL, AWK, AMPL, and others.
Triple-stranded DNA (also known as H-DNA or Triplex-DNA) is a DNA structure in which three oligonucleotides wind around each other and form a triple helix. In triple-stranded DNA, the third strand binds to a B-form DNA (via Watson–Crick base-pairing ) double helix by forming Hoogsteen base pairs or reversed Hoogsteen hydrogen bonds.
Aon Hewitt (formerly known as Hewitt Associates) was a provider of human capital and management consulting services headquartered in Lincolnshire, Illinois in the United States. From 500 offices in 120 countries, it provided consulting, outsourcing, and reinsurance brokerage services. The "Aon Hewitt" brand and legal entities have now been ...