The term for a variant of a gene is: a) homozygous. b) a genome. c) a proteome. d) an allele. Which type of twin develops from the union of two different sperm and eggs? a. Identical b. Fraternal c. Homozygous d. Heterozygous ...
et al. Arabidopsis STN7 kinase provides a link between short- and long-term photosynthetic acclimation. Plant Cell 21, 2402–2423 (2009). CAS PubMed PubMed Central Google Scholar Lee, K. P., Kim, C., Landgraf, F. & Apel, K. EXECUTER1- and EXECUTER2-dependent transfer of stress-...
Though "dominant lethal" is a term which could be applied with equal justification to any mutation which caused the death of the heterozygote, it has come by usage to be reserved for very early deaths presumed to have arisen through chromosome disturbance of the kind observed by Brenneke. ...
To the best of my knowledge, twiblings don’t exist in nature.EDIT: This process is rare, but we have documented cases of it happening in humans. The proper scientific term is"Sesquizygotic Twins".See ScottNYX's comment for more. To get one, you’d need two different genetically identic...
Chromosomes were first seen by Hofmeister (1848) in the pollen mother cells of Tradescantia in the form of darkly stained bodies. The term chromosome (Gr: chrom=colour; soma=body) was used by Waldeyer (1888) to designate their great affinity to basic dyes. ...
Even geckos, previously thought to present a high lability of sex-determination systems, possess long-term stable sex-chromosomes that are more than 20 Myrs old [199]. Consequently, reptiles are similar to other amniotes in their stability of sex-determination systems, and different from ...
blue light affects gametophyte development through AUREO as a light signal receptor. This study systematically identified and analyzed the AUREO gene family in seven representative brown algae, which lay a good foundation for further study and understanding of AUERO functions in agal growth and ...
When we use the term "centromere," we mean the underlying base sequence at this site, and we are aware of the irony that this structure (by definition) cannot be seen in the light microscope (Earnshaw 1991). The kinetochore is a multiprotein chromatin complex at which the forces of ...
SMR and conditions become unsuitable for long-term survival (Fig.2A, red area). The slope of the line of oxygen limitation (αS) is sensitive to temperature because the biophysical mechanisms governing it (ventilation, circulation, diffusion) are themselves dependent on temperature as well as ...
(Daccord et al.2017). Epigenesis may lie at the heart of somaclonal variations that can arise spontaneously in vitro as a result of long-term culture or acclimatization (Gulyás et al. 2019 (unpublished)). This is an important issue as Webster and Jones (1989) discovered that increased ...