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Purebred are those animals that have been bred-up to purebred status as a result of using full blood animals to cross with an animal of another breed. Artificial breeding via artificial insemination or embryo transfer is often used in sheep and cattle breeding to quickly expand, or improve purebred herds.
Braunvieh, a dairy breed [1] with high milk production and little milk fat. A breed is a specific group of breedable domestic animals having homogeneous smell (), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species.
In the example pictured to the right, RRYY/rryy parents result in F 1 offspring that are heterozygous for both R and Y (RrYy). [4] This is a dihybrid cross of two heterozygous parents. The traits observed in this cross are the same traits that Mendel was observing for his experiments. This cross results in the expected phenotypic ratio of 9:3:3:1.
For example, while having an XY format, Xiphophorus nezahualcoyotl and X. milleri also have a second Y chromosome, known as Y', that creates XY' females and YY' males. [16] At least one monotreme, the platypus, presents a particular sex determination scheme that in some ways resembles that of the ZW sex chromosomes of birds and lacks the SRY gene.
A crossbreed is an organism with purebred parents of two different breeds, varieties, or populations. A domestic animal of unknown ancestry, where the breed status of only one parent or grandparent is known, may also be called a crossbreed though the term "mixed breed" is technically more accurate.
One approach to doing so was by calque from the original (often German or Yiddish) surname. For instance, Imi Lichtenfield (itself a half-calque [definition needed]), founder of the martial art Krav Maga, became Imi Sde-Or. Both last names mean "light field". For more examples and other approaches, see the article on Hebraization of surnames.
An example of random variation in Drosophila flies is the number of ommatidia, which may vary (randomly) between left and right eyes in a single individual as much as they do between different genotypes overall, or between clones raised in different environments.
A Tricolor (black, white, brown) Shih Tzu in show coat.. The Shih Tzu is a sturdy little dog with a small snout and normally has large dark brown eyes. The Chinese have described their head shapes as "owl head" and "lion head", and their mouth as "frog mouths" and their lips as "earthworm lips". [2]