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To determine if an animal will be horned, polled (smooth-polled), or scurred (scurred-polled) is gene dependent. The editor above in the Definition and title section was really close but got side-tracked by introducing sheep into the picture. I am more experienced concerning horned versus polled cattle but some research will likely conclude the ...
Polled strains have been developed of many cattle breeds which were originally horned. This has usually been done by crossing with naturally polled breeds, most commonly Angus and Galloway cattle. For example, polled Jersey cattle originated in Ohio sometime prior to 1895. Two strains were developed, the first to appear being founded by crosses ...
homozygous In a diploid organism, having two identical alleles at a given genetic locus. In genetics shorthand, homozygous genotypes are represented by a pair of matching letters or symbols, such as "AA" or "aa". Contrast heterozygous. horizontal gene transfer (HGT)
The words homozygous, heterozygous, and hemizygous are used to describe the genotype of a diploid organism at a single locus on the DNA. Homozygous describes a genotype consisting of two identical alleles at a given locus, heterozygous describes a genotype consisting of two different alleles at a locus, hemizygous describes a genotype consisting of only a single copy of a particular gene in an ...
Advanced Placement (AP) United States Government and Politics (often shortened to AP Gov or AP GoPo and sometimes referred to as AP American Government or simply AP Government) is a college-level course and examination offered to high school students through the College Board's Advanced Placement Program.
Amid takeovers of the U.S. government’s main human resources and foreign aid arms, his task force has begun probing the primary federal agency overseeing American schools, too.
Parts of a typical chromosome: (1) Chromatid (2) Centromere (3) Short (p) arm (4) Long (q) arm. In genetics, a locus (pl.: loci) is a specific, fixed position on a chromosome where a particular gene or genetic marker is located. [1]
Kay Bhothinard and Peter Field knew their home was in need of some TLC. But they didn't know it would end up on PBS's "This Old House."