X inactivation turns off entire chromosomes, whereas imprinting turns off only specific genes. How do these processes work, and why do they often produce similar results? Upon examining their ...

2024 年 8 月 26 日科学探索奖公布，共计 49 人获奖，每位奖金 300 ...

When ducklings are hatched, the first moving object they see is usually their mother. They proceed to follow her. If they see another moving object, however, they follow it instead ...

2024 年 8 月 26 日科学探索奖公布，共计 49 人获奖，每位奖金 300 ...

You're not an equal product of both parents' genes. Genomic imprinting, a process whereby only one gene copy is expressed, not only exists but, combined with mutations, may lead to disease.

Imprinting is partly innate because the young birds will only learn to recognise and follow objects that have certain features. For example, goslings imprint on the first object they see that ...

小鼠胚胎发育过程中，X染色体失活受到精确而动态地调控。从4-细胞时期开始到囊胚期，父源X染色体发生特异地印记失活（Imprinted XCI）。之后，父源X染色体在胚外组织中维持印记失活状态，而在胚胎细胞中，其首先被短暂地重新激活，然后父源或者母源X染色体 ...

Atlanta Hawks' storied history has been marked by several outstanding players who have left an imprint on the franchise.

Cole, Shawn, Vikram S. Gandhi, Caitlin Reimers Brumme, and Lynn Schenk. "Goldman Sachs: Making an Imprint in Impact Investing." Harvard Business School Case 218-069, April 2018. (Revised May 2018.) ...

Minzhu Village Community, a once run-down neighborhood in Chongqing, has become a charming and livable community with a clean ...

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catalog albums the week's most popular albums across all genres at least 18 months old and that have fallen below no. 100 on the billboard 200, based on multimetric consumption, blending ...