早在1991年,Robin Lovell-Badge教授带领的团队发现了哺乳动物Y染色体上的性别决定基因Sry[2]。这个基因编码的蛋白叫做性别决定区域Y蛋白(SRY),也叫做睾丸决定因子(TDF). 2004年发表在Developmental Biology期刊上的文章证实在Sertoli细胞前体中,SRY上调SOX9的...
What is the function of genes in biology?The NucleusThe nucleus is the control center of the cell, as the nucleus contains the code for the overall-functioning of the organism via protein synthesis and ultimately genetic expression. Note that this code is contained within chromosomes, which are...
Nowhere is this concept more vividly illustrated than in the collective lives of social insects. In a beehive, ant colony, or naked mole-rat society, most individuals are unsexed (essentially, intersex) workers or warriors. They don’t waste time reproducing; that job belongs to the queen. He...
What is the importance of heredity? Define the term genetic as used in biology. What does it mean for evolution to be more deterministic for those unaware of evolution? What is meant by general adaptation syndrome? What type of congenital disorder is trisomy?
sry,我的英国不是那么好,什么u手段? 相关内容 aRather, the difference arises because the benefits to which social goods give rise are not limited to one particular consumer who purchases the good, as is the case for private goods, but become available to others as well. 相反,区别出现,因为社会...
The inclusion of sex as a biological variable in research is absolutely essential for improving our understanding of disease mechanisms contributing to risk and resilience. Studies focusing on examining sex differences have demonstrated across many levels of analyses and stages of brain development and ma...
Biology is complicated. As is identity. We’ll look at ethnicity in a moment, but first, a quick detour. Is transsexualism genetic? One of our co-authors, Alaina, has an interesting feature: She’s transsexual. (We also had one more trans woman in our genetic sample.) ...
Quantum entanglement is a phenomenon in which the quantum states of two or more objects become correlated, meaning that the state of one object can affect the state of the other(s) even if the objects are separated by large distances. This occurs because, according to quantum theory, ...
The Y chromosome of these mice sustained a spontaneous deletion that removed the entire Sry gene, yielding the “Y minus” chromosome (Y−) that not longer is testis-determining. XY− mice thus are gonadal females ( 3. Genetic differences in XX vs. XY FCG mice When same-sex XX and ...
Inevitably, the consequenting paradigms shift in science — Chemistry, biology, physics, geography,… — STES-, STEM-, engineering-, environmental Education follow suit. From the perspective of sustainability, any relevant generated or acquired knowledge that is put into action in the STES context,...