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  2. Meiosis - Wikipedia

    en.wikipedia.org/wiki/Meiosis

    meiosis. produces four genetically unique cells, each with half the number of chromosomes as in the parent. mitosis. produces two genetically identical cells, each with the same number of chromosomes as in the parent. Meiosis begins with a diploid cell, which contains two copies of each chromosome, termed homologs.

  3. AN/SPY-3 - Wikipedia

    en.wikipedia.org/wiki/AN/SPY-3

    Country of origin. United States. Type. Navigation/Targeting. Frequency. X band. Range. 200 mi (320 km) The AN/SPY-3 is an active electronically scanned array radar manufactured by Raytheon and designed for both blue-water and littoral [1] operations.

  4. Langford pairing - Wikipedia

    en.wikipedia.org/wiki/Langford_pairing

    A Langford pairing for n = 4. In combinatorial mathematics, a Langford pairing, also called a Langford sequence, is a permutation of the sequence of 2n numbers 1, 1, 2, 2, ..., n, n in which the two 1s are one unit apart, the two 2s are two units apart, and more generally the two copies of each number k are k units apart. Langford pairings are ...

  5. Type 382 radar - Wikipedia

    en.wikipedia.org/wiki/Type_382_radar

    The Type 382 (or H/LJQ-382) is a 3-D naval air search radar developed by the People's Republic of China. [1] [2] It uses two back-to-back planar arrays on a rotating mount. [1] The relationship between the Type 382 and the Russian Fregat MAE-3 radar ( NATO reporting name: Top Plate) is unclear. In 2015, Type 382 was identified as the Fregat by ...

  6. Gun laws in Arkansas - Wikipedia

    en.wikipedia.org/wiki/Gun_laws_in_Arkansas

    AR Code § 5-73-120. AR Code §§ 5-73-301 to 5-73-320. Arkansas is a "shall issue" state for citizens and lawful permanent residents who are 21 years or older. Regular and Enhanced permits are issued. Enhanced permits are issued to those who complete a training course. Permitless carry took effect on August 16, 2013.

  7. Arkansas's 2nd congressional district - Wikipedia

    en.wikipedia.org/wiki/Arkansas's_2nd...

    R+9 [3] Arkansas's 2nd congressional district is a congressional district located in the central part of the U.S. state of Arkansas and includes most of the state capital of Little Rock, its suburbs, and surrounding areas. The district leans Republican, with a Cook Partisan Voting Index rating of R+9. However, due to the influence of heavily ...

  8. History of slavery in Arkansas - Wikipedia

    en.wikipedia.org/wiki/History_of_slavery_in_Arkansas

    The history of slavery in Arkansas began in the 1790s, before the Louisiana Purchase made the land territory of the United States. [1] Arkansas was a slave state from its establishment in 1836 until the Thirteenth Amendment of the U.S. Constitution was ratified in 1865. [1] Slaveholders were initially clustered in the eastern and southern ...

  9. Terminal Doppler Weather Radar - Wikipedia

    en.wikipedia.org/wiki/Terminal_Doppler_Weather_Radar

    A NEXRAD weather radar currently used by the National Weather Service (NWS) is a 10 cm wavelength (2700-3000 MHz) radar capable of a complete scan every 4.5 to 10 minutes, depending on the number of angles scanned, and depending on whether or not MESO-SAILS is active, which adds a supplemental low-level scan while completing a volume scan. Its ...