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Trisomy 21. Down syndrome (also known by the karyotype 47,XX,+21 for females and 47,XY,+21 for males) [98] is mostly caused by a failure of the 21st chromosome to separate during egg or sperm development, known as nondisjunction. [91] As a result, a sperm or egg cell is produced with an extra copy of chromosome 21; this cell thus has 24 ...
help. " Amor " (English: "Love") is a song written and performed by Mexican singer Cristian Castro and produced by Daniel Freiberg. It was released as the lead single for Castro's fourth studio album El Deseo de Oír Tu Voz in 1995 by Melody Records. It is an acoustic pop rock song in which the singer asks love to give him a chance.
First edition title page. Twenty Love Poems and a Song of Despair (Spanish: Veinte poemas de amor y una canción desesperada) is a poetry collection by the Chilean poet Pablo Neruda. Published in June 1924, the book launched Neruda to fame at the young age of 19 and is one of the most renowned literary works of the 20th century in the Spanish ...
Por amor is a 1968 bolero by Rafael Solano a native from the Dominican Republic. The song was first and most famously sung by Niní Cáffaro, [1] and has been covered by Lucho Gatica, Marco Antonio Muñiz, Vicki Carr, Jon Secada, Gloria Estefan and Plácido Domingo . The lyrics commence: [2] "Por amor, se han creado los hombres, en la faz de la ...
John Langdon Down. John Langdon Haydon Down (18 November 1828 – 7 October 1896) was a British physician best known for his description of the genetic condition now known as Down syndrome, which he originally classified in 1862. He is also noted for his work in social medicine and as a pioneer in the care of mentally disabled patients.
Genetics of Down syndrome. Down syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on chromosome 21, either in whole (trisomy 21) or part (such as due to translocations). The effects of the extra copy varies greatly from individual to individual, depending on the extent of the extra copy ...
Secreto de Amor (song) " Secreto de Amor " (English: "Secret of Love") is a song by Mexican singer-songwriter Joan Sebastian, released as the first single and title track from Sebastian's 27th studio album, Secreto de Amor. Written and produced by Sebastian, it is often regarded as one of his signature songs, [1] being covered by many artists ...
Manuel Alejandro. Manuel Álvarez-Beigbeder Pérez (born 21 February 1932), [1][2] better known as Manuel Alejandro, is a Spanish composer of Latin love songs, which are better known as ballads. He has written, composed, and arranged songs for the likes of Luis Miguel, Plácido Domingo, Nino Bravo, Julio Iglesias, [3] Raphael, Hernaldo Zúñiga ...