Eukaryotic genomes contain a large proportion of repetitive DNA sequences, mostly transposable elements (TEs) and tandem repeats. These repetitive sequences often colonize specific chromosomal (Y or W chromosomes, B chromosomes) or subchromosomal (telomeres, centromeres) niches. Sex chromosomes, especial...
DNA and Its Role in HeredityPark, Jurassic
How does meiosis play a role in heredity? What role do meiosis and mitosis play in maintaining the integrity of the genetic code during (a) cloning? (b) sexual reproduction? What is the role of reproduction as used in the study of biology?
Here, we analyzed the arrangement of 9 repetitive DNA sequences in the W chromosomes of 2 fish species, namely Leporinus reinhardti and Triportheus auritus, which present well-differentiated ZZ/ZW sex system, but differ in respect to the size of the sex-specific chromosome. Both W chromosomes...
Here we review the occurrence and role of repetitive DNA in Y chromosome evolution in various species with a focus on dioecious plants. We also discuss the potential link between recombination and transposition in shaping genomes. Heredity (2009) 102, 533–541; doi:10.1038/hdy.2009.17; published...
What is DNA and what are its functions? What effect does methylation have on gene expression? What are DNA repair genes? What is their role in the development of neoplasms? 1. What are the DNA and its role in heredity 2. What are the structure of the DNA, the genetic code, t...
T-complex protein 1 subunit gamma (TCP), Chloride channel protein CLC-c (CLC), and DNA-methyltransferase 1 (MET1). In total, 120 are elsewhere, of which 78 are in a chromosome XIX PAR gene (Fig.1a) that belongs to a gene family of response regulators (RR) in the cytokinin signaling...
Librado P, Rozas J: DnaSP v5: A software for comprehensive analysis of DNA polymorphism data. Bioinformatics. 2009, 25: 1451-1452. 10.1093/bioinformatics/btp187. Article CAS PubMed Google Scholar Clement M, Posada D, Crandall KA: TCS: A computer program to estimate gene genealogies. Mol Ec...
DNA fingerprints resolved 617 different genotypes among 673 isolates sampled from a single field over a 3-month period. Only 7% of the isolates represented asexual clones that were found more than once in the sample. The most common clone was found four times. Genotypic diversity averaged 85% ...
Compare DNA and RNA by addressing the number of strands, sugar used, nucleotide bases used, typical location in the cell, and function or role. What is the role of DNA polymerase III? Discuss how DNA is used in a criminal investigation, especially noting the role ...