Gregor Mendel, the father of modern #genetics, proposed in the 19th Century that each offspring receives 23 chromosomes from Mom and 23 matching chromosomes from Dad.

Until just a few decades ago, that was thought to be the whole 50-50 equation of #heredity.

But now we know it’s a lot more complicated. The writer unravels the #DNA to reveal who you really are (or at least what you cold be).

https://medium.com/wise-well/youre-not-50-mom-50-dad-like-they-told-you-7d760f65a5c2

RT @clincgenetics
Poland anomaly (PA) is described as an underdevelopment or absence of the chest muscle (pectoralis) on one side of the body and webbing of the fingers (cutaneous syndactyly) of the hand on the same side (ipsilateral hand).
#genetic #heredity #research #polandanomaly #submissions

RT @clincgenetics
X-linked agammaglobulinemia is a rare genetic disease. It causes a weakened immune system. X-linked means that the gene that causes this disease is located on the X chromosome. A child with this disease can’t make antibodies.
#genetic #heredity #research #agammaglobulinemia

#QuizOfTheDay: #Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring.

Which of the following is hereditary #Disorder?

A. Scurvy
B. Rickets
C. Colour blindness
D. Night blindness

https://knowledgezone.co.in/resources/quiz?qId=63d74a10e37a5bae543a3ea9

@jetton for anyone else who finds themselves furrowing their brows at the word #cytogenetics ,
here’s a full (unsolicited) rundown from #sciencedirect :

What is cytogenetics?
Cytogenetics is the oldest and most basic technique used to perform #cytogenomic studies. It is far from being outdated and offers unique possibilities to approach the whole genome of a given species at once; cytogenetics takes advantage of the possibility of making a genome visible to the human eye under a microscopic lens (Liehr, 2020, 2021a, 2021b).
Cytogenetics is defined slightly differently, according to the following three references:
•
Cytogenetics is “the study of chromosomes, which are long strands of DNA and protein that contain most of the genetic information in a cell. Cytogenetics involves testing samples of tissue, blood, or bone marrow in a laboratory to look for changes in chromosomes, including broken, missing, rearranged, or extra chromosomes. Changes in certain chromosomes may be a sign of a #geneticdisease or condition or some types of #cancer . Cytogenetics may be used to help diagnose a disease or condition, plan treatment, or find out how well treatment is working” (Cytogenetics - #CancerDictionary 2020).
•
“Cytogenetics is essentially a branch of genetics but is also a part of #cellbiology /#cytology (a subdivision of #humananatomy ), that is concerned with how the chromosomes relate to #cellbehavior , particularly to their behavior during mitosis and meiosis. Techniques used include #karyotyping , analysis of G-banded chromosomes and other #cytogenetic banding techniques” (Cytogenetics - Wikipedia, 2020).
•
Cytogenetics is “the branch of #genetics that is concerned primarily in cellular components, especially chromosomes, in relation to #heredity , #geneticanomalies , and #pathologicconditions . It is the branch of genetics that deal at the cellular level” (Cytogenetics - #BiologyOnline , 2020).
Thus, cytogenetics, as discussed here, is about studying chromosomes by the classical methods outlined later. It is single-cell oriented, and studies chromosomes for research and #diagnostic purposes. In research, it provides basic information about genomes, including necessary insights into chromosome numbers, shape, and structures, like telomeres, centromeres, chromosome-arms, or banding pattern. In addition, it is of interest that mitotic as well as meiotic chromosomes can be accessed. Overall, cytogenetics is the “entry method,” in case genetic diagnostics is required in pre-, postnatal, or #leukemia diagnostics, but also in studies on #karyotypes and genomes in #evolutionresearch (#Liehr , 2020).
#cytogenecist #cytogeneticists #diagnostics #cellbehaviour #cancerresearch #oncologist #molecularhemopathology #oncology #MultipleMyeloma #genomemaps #geneticmapping #linkagemaps #cytogeneticmapping #rflp #vntr #meded #humanchromosomes

This online lesson takes a closer look at the story of different medical experiments conducted at the Auschwitz camp, including mass sterilization of men and women, heredity research by Dr. Josef Mengele, and the effects of the starvation disease, and the testing of new drugs: http://lekcja.auschwitz.org/2022_medycyna_en/

#Auschwitz #history #experiments #medicine #sterilization #heredity #starvation #tests #doctors #ethics #ww2 #people #Mengele #education #lesson #elearning #Nazis #Germany

Call for papers!

Do you have a story about #AlternativeSplicing, #AlternativePolyadenylation, #RNAmodification, or some other #PostTranscriptional process in #adaptation ?

Please consider submitting to a Special Issue at #Heredity with guest editors Arne Jacobs and yours truly. Deadline end of February 2023.

Email for details.

https://www.nature.com/collections/bjhfcceaeb

My #interests are too #diverse to settle into a specific #server filled with persons of a specific #talent. This characteristic also applied to my choosing a #career 40 years ago. I am one of many examples of #heredity and #environment. Only the best and the worst get the most attention. #IntroductuonContinued

Geneticists trace humble #apple's exotic #lineage all the way to the #Silk #Road | #Science | The Guardian

https://www.theguardian.com/science/2017/aug/15/geneticists-trace-humble-apples-exotic-lineage-all-the-way-to-the-silk-road

#Biology #Botany #Genetics #Heredity