Dictionary,Defintion,Meaning,What is Unequal Crossing Over, Uracil, Unique DNA, Ultrasound, Ultrasonography, Uracil, Nitrogenous Base

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Home >> Genetics Dictionary >> Unequal crossing over Uracil

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Unequal crossing over
Recombination that occurs between two homologues that are improperly aligned.

Exchange of DNA is unequal, such that one homologue winds up with three copies of a region of the chromosome, while the other homologue has only one.
A crossing over in which the two chromosomes do not exchange equal lengths of DNA; one receives more than the other.

Unique DNA
DNA sequences that exist in only one copy per haploid genome.

Ultrasound
The use of sound waves to visualize soft tissue organs and fetuses (also known as sonogram).

Ultrasonography
The use of high frequency sound waves to examine internal body structures, such as a fetus contained in the uterus. An ultrasound examination is also known as a sonogram.

Uracil
A nitrogenous base normally found in RNA but not DNA; uracil is capable of forming a base pair with adenine.

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Genetic Dictionary - Part 3 Reproductive Character Displacement - Restriction Enzyme Cutting Site Restriction Site - Reverse Transcriptase RFLP (Restriction Fragment Length Polymorphism) - RNA (Ribonucleic Acid) RNA Polymerase - Rule of Segragation Sagittal Crest - Scoliosis Secondary Cancer - Selfing Semi Conservative Replication - Sex Influenced Trait Sex Limited Trait - Sickle Cell Anemia Sigma Factor - Solenoid Structure Somatic Cell Genetic Mutation - Spina Bifida Splice Site - Stromatoporoid Structural Genomics - Synaptonemal Complex Syndactyly - Synteny Tandem Repeat - Telomere Telophase - Theropod Three Point Cross - Transduction tRNA (Transfer RNA) - Transition Transposable Element - Transposons Transversion - Trisomy 21 Tumor Suppressor Gene - Typology Unequal Crossing Over - Uracil Van Valen, Leigh - Virulence Virus - Vrijenhoek, Robert Wake, David - Wrangham, Richard X Chromosome - Xenograft Y Chromosome - Y Junction Zinc Finger - Zygonema / Zygotene