Conceptual alignment between the somatic cell division curriculum, textbooks, instruction, and assessment in high school

2021 ◽  
pp. 1-16
Author(s):  
Youngshin Kim ◽  
Yun-hye Lee ◽  
Hyonyong Lee ◽  
Soo-min Lim
Keyword(s):  
High School ◽  
Cell Division ◽  
Somatic Cell

Dosage dependence of maternal contribution to somatic cell division in Drosophila melanogaster

Development ◽  
1991 ◽  
Vol 113 (4) ◽  
pp. 1357-1364 ◽  
Author(s):  
M. Carmena ◽  
C. Gonzalez ◽  
J. Casal ◽  
P. Ripoll
Keyword(s):  
Drosophila Melanogaster ◽  
Cell Division ◽  
Somatic Cell ◽  
Early Development ◽  
Normal Cell ◽  
Chromosome Behaviour ◽  
Wild Type ◽  
Maternal Contribution ◽  
Different Doses ◽  
Chromosome Nondisjunction

Most mitotic mutants in Drosophila do not lead to lethality in early development despite the highly abnormal chromosome behaviour that they elicit. This has been explained as being the effect of maternally provided wild-type products. We have tested this hypothesis by studying cuticular clones derived from cells in which there has been loss of a marked Y chromosome due to chromosome nondisjunction in individuals homozygous for the mutation abnormal spindle who are progeny of heterozygous mothers. We have found that the size and frequency of these clones are higher than in control flies. Furthermore, by analysing flies whose female parents have different doses of the asp+ gene, we have found that there is a correlation between the amount of maternally contributed asp+ product and the frequency and size of cuticular clones. We have also estimated the time in development when the first mitotic mistakes take place, i.e. the time when maternal products are no longer sufficient to carry out normal cell division.

Acquisition of embryogenic competency does not require cell division in carrot somatic cell

2012 ◽  
Vol 126 (2) ◽  
pp. 243-250 ◽  
Author(s):  
Akira Kikuchi ◽  
Masashi Asahina ◽  
Motoki Tanaka ◽  
Shinobu Satoh ◽  
Hiroshi Kamada
Keyword(s):  
Cell Division ◽  
Somatic Cell ◽  
Embryogenic Competency

Flavanols in Somatic Cell Division and Male Meiosis of Tea (Camellia sinensis) Anthers

Plant Biology ◽  
2005 ◽  
Vol 7 (2) ◽  
pp. 168-175 ◽  
Author(s):  
W. Feucht ◽  
D. Treutter ◽  
H. Dithmar ◽  
J. Polster
Keyword(s):  
Cell Division ◽  
Somatic Cell ◽  
Camellia Sinensis ◽  
Male Meiosis

scholarly journals Different Doses of the Enhanced UV-B Radiation Effects on Wheat Somatic Cell Division

CellBio ◽  
2015 ◽  
Vol 04 (02) ◽  
pp. 30-36
Author(s):  
Feifeng Liu ◽  
Huize Chen ◽  
Rong Han
Keyword(s):  
Cell Division ◽  
Somatic Cell ◽  
Radiation Effects ◽  
Different Doses

scholarly journals Developing learning supplement book of Cell Mitotic Division material for Junior High School students

2021 ◽  
Vol 1 (1) ◽  
pp. 37-44
Author(s):  
Intan Putri Syawalinda ◽  
Iin Hindun ◽  
Diani Fatmawati
Keyword(s):  
High School ◽  
High School Students ◽  
Cell Division ◽  
Junior High School ◽  
Junior High ◽  
Small Scale ◽  
Teaching Material ◽  
Large Trial ◽  
Learning Material ◽  
School Students

Cell division is an abstract material for middle school students in which learning resources and supporting learning media are compulsory to use. This research and development aimed at developing learning supplement book of mitotic cell material for IX graders which eases them to identify cell division, particularly in mitotic phase. This study was developed based on ADDIE model which comprised of four stages (i.e. Analysis, Design, Development, Implementation, and Evaluation). The validation test was conducted by teaching and learning material experts. The two stage tests were conducted in small and large trial groups. The qualitative and quantitative data gained were analyzed using percentage. The results showed that the percentage values were 86.2% (very feasible) for teaching material, 99.4% (very feasible) for learning material. The small-scale trial gained 87.8% (very feasible), meanwhile the large-scale test gained 88.3% (very feasible). In conclusion, the mitotic learning supplement book of cell division material for junior high school can be used as teaching material in classroom learning activities.

scholarly journals Chromosomal Aberrations Induced by Carbaryl in Root Meristem Cells of Pisum Sativum L.

2017 ◽  
Vol 14 (3) ◽  
pp. 985-987
Author(s):  
Khushboo Kushwah ◽  
Ravendra Singh Chauhan ◽  
R.K. Sarbhoy ◽  
Harshal Kumar
Keyword(s):  
Cell Division ◽  
Pisum Sativum ◽  
Somatic Cell ◽  
Chromosomal Aberrations ◽  
Filter Paper ◽  
Root Meristem ◽  
Distilled Water ◽  
Root Tips ◽  
Uniform Size ◽  
Pisum Sativum L

ABSTRACT: Carbaryl, which is also known as sevin, induced mitostatic and turbagenic leading to clastogenic effects in the root meristem cells of Pisum sativum. The study was conducted at Department of Botany, Agra College, Agra. Seeds of uniform size of Pisum sativum were germinated on moist filter paper in petriplates. 1to 2 mm root tips were cut and treated with different concentrations (0.1, 0.2, 0.3,0.5%) of carbaryl prepared in distilled water for varying duration (3 to 9 hrs.) of time. It has mitodepressive and mitostatic effects on somatic cell division. These effects are directly proportional to concentration and duration. Common clastogenic effects are stickiness, condensation, breakage and bridges etc. Present investigation clearly revealed that carbaryl showed clastogenic and mitostatic effects. So, it should be used with precautions as it can be hazardous to both targeted and non-targeted biota.

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