Genetic Detection of Chromosomal Interchanges
... in exceptional cases interchanges with high fertility may be observed such semi sterility is absorbed only in those plants which have translocation in only one set of chromosome, the other set being normal. These plants are called interchange heterozygote. On the contrary, there can be plants, which ...
... in exceptional cases interchanges with high fertility may be observed such semi sterility is absorbed only in those plants which have translocation in only one set of chromosome, the other set being normal. These plants are called interchange heterozygote. On the contrary, there can be plants, which ...
Genome-wide scan of bipolar disorder in 65 pedigrees: supportive evidence for linkage at 8q24, 18q22, 4q32, 2p12, and 13q12.
... order was the most likely given the genotype data. For each of the chromosomes, we also built a map on the Marshfield web site using the ‘Build your own map’ function. Of the 842 markers in our data set, 142 were not in the Marshfield data set. There were 12 order discrepancies on seven chromosomes ...
... order was the most likely given the genotype data. For each of the chromosomes, we also built a map on the Marshfield web site using the ‘Build your own map’ function. Of the 842 markers in our data set, 142 were not in the Marshfield data set. There were 12 order discrepancies on seven chromosomes ...
the x chromosome in population genetics
... address the history of the human population. Nevertheless, the X chromosome continues to be overshadowed in these studies by the Y chromosome and mtDNA, despite containing far more genetic information than either. One reason for the lagging position of the X chromosome has been a delay in the genera ...
... address the history of the human population. Nevertheless, the X chromosome continues to be overshadowed in these studies by the Y chromosome and mtDNA, despite containing far more genetic information than either. One reason for the lagging position of the X chromosome has been a delay in the genera ...
Down syndrome: characterisation of a case with partial trisomy of
... features of DS map to 21q21.3, as suggested by Korenberg et al,5 but also 21q22. One of the difficulties in the construction of a phenotypic map, based on cases of partial trisomy, is that a large proportion of these cases have in addition other chromosomal abnormalities, which may also contribute t ...
... features of DS map to 21q21.3, as suggested by Korenberg et al,5 but also 21q22. One of the difficulties in the construction of a phenotypic map, based on cases of partial trisomy, is that a large proportion of these cases have in addition other chromosomal abnormalities, which may also contribute t ...
QTL Mapping and Analysis for the Traits Related to Pod Dehiscence
... while this trait also causes major yield losses in the mechanically harvested soybeans. In this research, QTL mapping and correlation analysis of three related traits (PD trait(PDH), ratio of thickness to width (RTW) and days of full maturity (DFM) ) were performeded in 112 strains of soybean recomb ...
... while this trait also causes major yield losses in the mechanically harvested soybeans. In this research, QTL mapping and correlation analysis of three related traits (PD trait(PDH), ratio of thickness to width (RTW) and days of full maturity (DFM) ) were performeded in 112 strains of soybean recomb ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Certain previously described CCRs (Table 1) in female cases were also ascertained by recurrent miscarriages were all phenotypically normal, it is likely that these chromosomal breakpoints might not include genes or gene regulatory regions whose disruptions may give rise to physical dysfunction and c ...
... Certain previously described CCRs (Table 1) in female cases were also ascertained by recurrent miscarriages were all phenotypically normal, it is likely that these chromosomal breakpoints might not include genes or gene regulatory regions whose disruptions may give rise to physical dysfunction and c ...
Multilocus genetic models of handedness closely resemble
... of left-handedness,24, 25 these genes may moderate handedness,1 although handedness certainly is not inherited as a classic, sex-linked Mendelian gene.26 The European Network for Genetic and Genomic Epidemiology (ENGAGE) consortium reported meta-analysis of 12 GWASs, based on 2350 left-handers and 2 ...
... of left-handedness,24, 25 these genes may moderate handedness,1 although handedness certainly is not inherited as a classic, sex-linked Mendelian gene.26 The European Network for Genetic and Genomic Epidemiology (ENGAGE) consortium reported meta-analysis of 12 GWASs, based on 2350 left-handers and 2 ...
What is Cytogenetics?
... • Each chromosome has a p and q arm; p (petit) is the short arm and q (next letter in the alphabet) is the long arm. Some of the chromosomes like 13, 14, and 15 have very small p arms. When a karyotype is made, the q arm is always put on the bottom and the p on the top. The arms are separated by a r ...
... • Each chromosome has a p and q arm; p (petit) is the short arm and q (next letter in the alphabet) is the long arm. Some of the chromosomes like 13, 14, and 15 have very small p arms. When a karyotype is made, the q arm is always put on the bottom and the p on the top. The arms are separated by a r ...
- Wiley Online Library
... mutations and do not generate much genotypic diversity. As a result, most parthenogenetic taxa occupy the terminal nodes of phylogenetic trees. The rate and mode of development of parthenogenesis are important factors to consider when assessing its costs and benefits since they determine both the le ...
... mutations and do not generate much genotypic diversity. As a result, most parthenogenetic taxa occupy the terminal nodes of phylogenetic trees. The rate and mode of development of parthenogenesis are important factors to consider when assessing its costs and benefits since they determine both the le ...
Bis2A 16.2 Errors in Meiosis
... one copy of an autosome invariably fail to develop to birth because they have only one copy of essential genes. Most autosomal trisomies also fail to develop to birth; however, duplications of some of the smaller chromosomes (13, 15, 18, 21, or 22) can result in ospring that survive for several wee ...
... one copy of an autosome invariably fail to develop to birth because they have only one copy of essential genes. Most autosomal trisomies also fail to develop to birth; however, duplications of some of the smaller chromosomes (13, 15, 18, 21, or 22) can result in ospring that survive for several wee ...
Multilocus genetic models of handedness closely resemble
... preference. What is clear is that no associations replicate across studies, with significance levels often being marginal after correction for multiple testing, and several studies find no significant associations at all (Table 1). The present review does not discuss specific sex-chromosomal genes, ...
... preference. What is clear is that no associations replicate across studies, with significance levels often being marginal after correction for multiple testing, and several studies find no significant associations at all (Table 1). The present review does not discuss specific sex-chromosomal genes, ...
What is known about interactions between genes and the
... Combination designs: Twin and adoption designs are each based on their own core assumptions (discussed in Section 3) and therefore each have their associated limitations. Designs that combine both approaches are the most powerful for separating the relative influence of genes and environment on huma ...
... Combination designs: Twin and adoption designs are each based on their own core assumptions (discussed in Section 3) and therefore each have their associated limitations. Designs that combine both approaches are the most powerful for separating the relative influence of genes and environment on huma ...
Linkage Analysis of Extremely Discordant and Concordant Sibling
... can be reduced considerably, with retention or improvement of power, by selecting those sib pairs most likely to show deviation from the expected proportion of allele sharing. Pairs that are genetically informative for linkage are those with concordant late or early age at menopause and discordant p ...
... can be reduced considerably, with retention or improvement of power, by selecting those sib pairs most likely to show deviation from the expected proportion of allele sharing. Pairs that are genetically informative for linkage are those with concordant late or early age at menopause and discordant p ...
Twinning and Embryonic Left-Right Asymmetry
... The geometrical invariance known as symmetry is a striking feature of developmental morphology during embryogenesis. The left-right axis of an animal's body plan is often thought of as being fundamentally different from the dorso-ventral and antero-posterior axes because of the symmetry which it exh ...
... The geometrical invariance known as symmetry is a striking feature of developmental morphology during embryogenesis. The left-right axis of an animal's body plan is often thought of as being fundamentally different from the dorso-ventral and antero-posterior axes because of the symmetry which it exh ...
Evolution of meiosis genes in sexual vs. asexual Potamopyrgus
... always a foregone conclusion. For example, recent studies have suggested that some pseudogenes maintain expression in some organisms (Birney et al. 2007), have roles in negative (Tam 2008) and positive (Guo & Zhang 2011) gene regulation, and may be resurrected to perform a particular function (Chen ...
... always a foregone conclusion. For example, recent studies have suggested that some pseudogenes maintain expression in some organisms (Birney et al. 2007), have roles in negative (Tam 2008) and positive (Guo & Zhang 2011) gene regulation, and may be resurrected to perform a particular function (Chen ...
Meiosis and Sexual Reproduction
... We have 23 pairs of homologous chromosomes (diploid) •Contain same genes for sister same traits chromatids centromere •Same size, shape •1 goes in sperm, 1 goes to egg in meiosis! (haploid) homologous ...
... We have 23 pairs of homologous chromosomes (diploid) •Contain same genes for sister same traits chromatids centromere •Same size, shape •1 goes in sperm, 1 goes to egg in meiosis! (haploid) homologous ...
What is known about interactions between genes and the
... Combination designs: Twin and adoption designs are each based on their own core assumptions (discussed in Section 3) and therefore each have their associated limitations. Designs that combine both approaches are the most powerful for separating the relative influence of genes and environment on huma ...
... Combination designs: Twin and adoption designs are each based on their own core assumptions (discussed in Section 3) and therefore each have their associated limitations. Designs that combine both approaches are the most powerful for separating the relative influence of genes and environment on huma ...
Chapter 9
... Meiosis II The second nuclear division Sister chromatids of each chromosome are pulled away from each other Each is now an individual chromosome ...
... Meiosis II The second nuclear division Sister chromatids of each chromosome are pulled away from each other Each is now an individual chromosome ...
The X Chromosome in Quantitative Trait Locus Mapping
... linkage, just as for the autosomes, as there are four mean parameters under the alternative and two under the null (the average phenotype for each of females and males). A somewhat more complex example is for the case that both directions of the intercross were performed, but only females were pheno ...
... linkage, just as for the autosomes, as there are four mean parameters under the alternative and two under the null (the average phenotype for each of females and males). A somewhat more complex example is for the case that both directions of the intercross were performed, but only females were pheno ...
A Genomic Imprinting Test for Ordinal Traits in Pedigree Data
... null hypothesis: (1) no linkage (and thus no imprinting effect) and (2) a linkage but no imprinting. For the first scenario, all markers were generated independently. A liability variable Zij for the jth person in the ith family was defined as Uei þ eij . And for the second scenario, we assumed a di ...
... null hypothesis: (1) no linkage (and thus no imprinting effect) and (2) a linkage but no imprinting. For the first scenario, all markers were generated independently. A liability variable Zij for the jth person in the ith family was defined as Uei þ eij . And for the second scenario, we assumed a di ...
Meiosis and Sexual Life Cycles
... is equally important. A critical role of heredity is to maintain and obtain variation among members of a species. These variations are the result of the specific genes we inherit from our parents. We did not always know that genes were located on chromosomes. We didn't even know how genetic informat ...
... is equally important. A critical role of heredity is to maintain and obtain variation among members of a species. These variations are the result of the specific genes we inherit from our parents. We did not always know that genes were located on chromosomes. We didn't even know how genetic informat ...
Heredity and Development: Second Edition
... soon there were more of them than there were pairs of homologous chromosomes. This was the difficult moment for genetics and cytology that Sutton had predicted (page 78). The Prediction of Linkage. At the time Sutton proposed his hypothesis, he pointed out one situation in which the Mendelian laws c ...
... soon there were more of them than there were pairs of homologous chromosomes. This was the difficult moment for genetics and cytology that Sutton had predicted (page 78). The Prediction of Linkage. At the time Sutton proposed his hypothesis, he pointed out one situation in which the Mendelian laws c ...
Origins of Individual Differences in Theory of Mind: From
... could be attributed to genetic factors. This finding supports theoretical accounts that highlight the innate nature of early ToM development (e.g., BaronCohen, 1995;Leslie, 1994). However, as the authors noted, because their study involved only a small (volunteer) sample, the results need to be repl ...
... could be attributed to genetic factors. This finding supports theoretical accounts that highlight the innate nature of early ToM development (e.g., BaronCohen, 1995;Leslie, 1994). However, as the authors noted, because their study involved only a small (volunteer) sample, the results need to be repl ...
The neural basis of puberty and adolescence
... of increased GnRH secretion at puberty28,29. Despite these identified genetic mechanisms, we are extremely cautious about designating any of these genes to be a master regulator of puberty. Rather than being part of a developmental clock, they may simply act as downstream mechanisms governing GnRH s ...
... of increased GnRH secretion at puberty28,29. Despite these identified genetic mechanisms, we are extremely cautious about designating any of these genes to be a master regulator of puberty. Rather than being part of a developmental clock, they may simply act as downstream mechanisms governing GnRH s ...
Evidence for a role of the genomic region of the gene encoding for
... sibpairs confirmed earlier findings of linkage in female sibpairs with hip OA (9,10), although we could not stratify for sex because the numbers were too low for a meaningful statistical analysis. Despite the fact that in our study the number of sibpairs was small, the excess of sharing was statisti ...
... sibpairs confirmed earlier findings of linkage in female sibpairs with hip OA (9,10), although we could not stratify for sex because the numbers were too low for a meaningful statistical analysis. Despite the fact that in our study the number of sibpairs was small, the excess of sharing was statisti ...