In Drosophila XO are male and XXY are female while in humans XO are female and XXY are male. On the basis of given information which statement is NOT true […]
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CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Sex Determination in Caenorhabditis elegans: The Role of X Chromosome Dosage and X/A Ratio
It has been observed the transfer of certain X segment in XO male of Caenorhhabditis elegans, restores female character. It suggest that mode of sex determination is (1) X/A ratio […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Sex Chromosome Complement XXXXY in Drosophila: Understanding Meta Female Phenotype
Drosophila with chromosome complement XXXXY/AA will be- (1) Meta female (2) meta male (3) normal male (4) Intersex Introduction to Drosophila Sex Determination Drosophila melanogaster utilizes a unique mechanism of […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Sex Determination in Drosophila: The Role of X Chromosome to Autosomes Ratio
Sex determination in Drosophila is based on ratio of number of X chromosomes to- (1) Number of autosomes (2) Sets of autosomes (3) Number of Y chromosome (4) Sets of […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding the Roles of FGF, PDGF, and Retinoic Acid in Neural Differentiation
The following assumptions were derived from the above experiment: A. Medium A contained FGF and PDGF. B. Medium B contained retinoic acid. C. Cells cultured in Medium B were determined […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Role of BMP Signaling in Neural Plate and Epidermis Specification During Neural Tube Formation
Both TGF β and Sonic hedgehog signals play important roles in both neurulation and cell-fate patterning of the neural tube. Which one of the following statements is true? (1) High […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding What Is Not True About Lateral Inhibition in Cell Differentiation
In many different contexts of cell differentiation, two distinct cell populations emerge from a uniform cell population. This process is referred to as lateral inhibition. Which one of the following […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Key Processes in Neural Tube Formation: Role of Primary and Secondary Neurulation, Sonic Hedgehog, and Mammalian Development
Transforming the neural plate into a neural tube is an important event towards the formation of central nervous system, in which the following sub-events might take place: A. In primary […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Comprehensive Overview of Primary and Secondary Neurulation in Vertebrate Neural Tube Formation
Given below are some of the statements in connection with neural tube formation in vertebrates: A. In primary neurulation the cells surrounding the neural plate direct the neural plate cells […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Primary and Secondary Neurulation in Vertebrate Brain Development
In two major ways the neural plate is converted into a neural tube, primary neurulation and secondary neurulation. A. In primary neurulation, a hollow neural tube is formed. B. In […]
