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The basic number of chromosomes in the somatic cells of an individual or a species is called the somatic number and is designated 2n. In the germ-line (the sex cells) the chromosome number is n (humans: n = 23). [4] [5] p28 Thus, in humans 2n = 46. So, in normal diploid organisms, autosomal chromosomes are present in two copies.
The Old Testament consistently uses three primary words to describe the parts of man: basar (flesh), which refers to the external, material aspect of man (mostly in emphasizing human frailty); nephesh, which refers to the soul as well as the whole person or life; and ruach which is used to refer to the human spirit (ruach can mean "wind", "breath", or "spirit" depending on the context; cf ...
The Modern English noun soul is derived from Old English sāwol, sāwel.The earliest attestations reported in the Oxford English Dictionary are from the 8th century. In King Alfred's translation of De Consolatione Philosophiae, it is used to refer to the immaterial, spiritual, or thinking aspect of a person, as contrasted with the person's physical body; in the Vespasian Psalter 77.50, it ...
The two genera are estimated to have diverged over an extended time of hybridization, spanning roughly 10 to 6 million years ago, with possible admixture as late as 4 million years ago. A subtribe of uncertain validity, grouping archaic "pre-human" or "para-human" species younger than the Homo-Pan split, is Australopithecina (proposed in 1939).
46,XX/46,XY is an example of tetragametic chimerism because it requires four gametes – two sperm and two ova. 46,XX/46,XY is most commonly explained during in conception combination of two fertilized eggs zygotes. Two ova from the mother are fertilized by two sperm from the father. One sperm contains an X chromosome; the other contains a Y ...
[47] [48] Brain expansion (enlargement) between 0.8 and 0.2 Ma may have occurred due to the extinction of most African megafauna (which made humans feed from smaller prey and plants, which required greater intelligence due to greater speed of the former and uncertainty about whether the latter were poisonous or not), extreme climate variability ...
Etymologically, it may be an ethnic or racial classification (after "reddish" skin colour contrasting with both "white" and "black"), but Genesis takes it to refer to the reddish colour of earth, as in the narrative the first man is formed from earth. [2]
Soul dualism, also called dualistic pluralism or multiple souls, is a range of beliefs that a person has two or more kinds of souls. In many cases, one of the souls is associated with body functions ("body soul") and the other one can leave the body ("free soul" or "wandering soul").