We review some recently published results on sex chromosomes in a diversity of species. We focus on several fish and some plants whose sex chromosomes appear to be ‘young’, as only parts of the chromosome are nonrecombining, while the rest is pseudoaut
Isozyme inheritance and variation inActinidiawas investigated using 23 enzyme systems. Ten isozyme loci from six enzyme systems,Acp-2, Est, Prx-1, Prx-2, Prx-3, Prx-4, Prx-5, Pgi-2, Pgm-2andTpi, were found to be inherited as single Mendelian genes in families of two interspecific cros...
Unionids and other bivalves have a distinct form of mitochondrial DNA (mtDNA) inheritance, termed doubly uniparental inheritance (DUI) (Zouros et al. 1994; Passamonti and Ghiselli 2009) where F-type and M-type mtDNA are inherited coexisting in the same individual (Zouros et al. 1994; Hoe...
Textbook writers seem unaware of this or that Weismann's denial of the inheritance of acquired characters applied only to multicells; in unicells he saw no distinction between germ line and soma and therefore accepted that mutation could readily occur in them by direct effects of the environment...
variation of samegene carried on homologous pairs of chromosomesPatterns of Inheritance Heyer 2 (AA or aa): paired alleles onhomologous chromosomes are the same (Aa): paired alleles are differentRelationship between alleles of the same gene: the allele that isexpressed in a heterozygote (produces ...
2007. Variation in genomic recombination rates among animal taxa and the case of social insects. Heredity 98:189-197... Wilfert,Gadau,Schmid-Hempel - 《Heredity》 被引量: 197发表: 2007年 Beyond the Baldwin Effect: James Mark Baldwin's 'social heredity', epigenetic inheritance and niche constru...
This article begins by describing the classic Mendelian patterns ofinheritanceand also the physical basis of those patterns—i.e., the organization of genes intochromosomes. The functioning of genes at the molecular level is described, particularly the transcription of the basic genetic material,DNA,...
The inheritance of cognitive functions and personality is still a problem under investigation. A classical method, investigation of twins, is often used to find relative contributions from genetics and the environment to quantitative traits. The aim of this study was to investigate a possible ...
Codominance is an example of a form of biological inheritance. Come and join our Forum to learn more about it:What is the key to the recognition of codominance? Principles of Heredity Gregor Mendel, an Austrian monk, is considered to be the father of genetics. (Ref.1)Geneticsis the science...
Watch complete video answer for “Heredity And Variations - Exceptions To Mendel'S Laws” of Biology Class 12th. Get FREE solutions to all questions from chapter PRINCIPLES OF INHERITANCE AND VARIATION.