04 May 2021: The Hindu Analysis
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 4th May 2021. Important news and... View Article
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Space Hurricane [UPSC Geography Notes]
In March 2021, scientists for the first time observed a space hurricane over the Earth’s North Pole. What are space... View Article
What Is Metastasis?
Cells can gradually escape from the primary tumor, and spread across the adjacent tissues, travelling through the bloodstream or lymphatic... View Article
What Could Angiogenesis Result From?
Angiogenesis could result from natural responses to increased tissue size, and the spread of tumour cells to other tissues can... View Article
Name One Way To Increase The Rate Of Mutation.
The pace of mutation can be elevated by the acquisition of defects in the cellular machinery. Most of the cancer... View Article
How Can Proteins Governing Cell Mechanisms Be Grouped?
Vast numbers of intracellular and extracellular proteins govern cell division, cell growth, cell death and the DNA damage response. In... View Article
What Are Proto-oncogenes?
Mutations that cause hyperactivity in a positive growth regulator tend to be genetically dominant; which is, a mutant gene on... View Article
What Happens To The Tertiary Follicles If Secondary Follicles Survive?
If the secondary follicles survive, tertiary follicles are engendered. The antral follicle is an identifying trait which is a fluid-filled... View Article
How Does Stratum Granulosum Come Into Being?
With the survival of primary follicles, the secondary follicles with follicular epitheliums including multiple rows are engendered. Now, this is... View Article
What Determines The Size Of The Graafian Follicle?
The size of a Graafian follicle is largely determined by the size of the antrum, which in turn is determined... View Article
How Is Theca Externa Characterized?
The theca externa is differentiated by the presence of smooth muscle cells innervated by autonomic nerves. Even though the physiologic... View Article
Describe The Graafian Follicle.
A Graafian follicle is structurally defined as a heterogeneous family of comparatively large follicles (0.4 to 23 mm) that are... View Article
What Happens In Folliculogenesis?
In Folliculogenesis, a recruited primordial follicle grows, developing into a specialized Graafian follicle. It has the potential either to ovulate... View Article
Describe The Secondary Follicle Briefly.
Secondary follicles develop from the primary follicle. The secondary follicles closely resemble primary follicles, the exception being it is larger,... View Article
When Do Primordial Germ Cells Move To Develop Gonads?
Primordial germ cells move into the developing gonad early in embryogenesis. They then differentiate into oogonia which in turn proliferate... View Article
What Is The Loss Of Heterozygosity?
Rarely, mutations in one allele of a tumour suppressor gene are inherited from one parent which highly accelerates tumour progression,... View Article
What Does The Loss Of Tumour Suppressor Gene Function Necessitate?
Usually, the loss of tumour suppressor gene function necessitates the inactivation of both alleles of the gene. This asks for... View Article
What Can Promote Tumour Formation By Non-mutational Mechanisms?
Chronic tissue injuries and other forms of viral infections are considered to facilitate the formation of tumours by non-mutational mechanisms.... View Article
How Are Benign Tumours Named?
Benign tumours are differently named from malignant tumours present in the same tissue. In the colon or breast, most of... View Article
How Are Cancers Named?
The naming of cancers is based on many factors which include the tissue of origin, the pathological attributes of the... View Article
