Which of the following processes interferes in sequence-based phylogeny? (1) Horizontal gene transfer (2) Adaptive mutations (3) DNA repair (4) Reverse transcription How Horizontal Gene Transfer Interferes with Sequence-Based […]
Tag: CSIR NET Life Science Previous Year Questions and Solution on Molecular Evolution
CSIR NET Life Science Previous Year Questions and Solution on Molecular Evolution
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How Many Rooted Trees Can Be Formed with Five Taxa? Understanding Phylogenetic Tree Calculations
The table below shows the number of unrooted and rooted trees generated when the number of taxa are three and four, respectively. Number of taxa Number of unrooted trees Number […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How Multi-Gene Families Evolve: The Role of Duplication and Unequal Crossing Over
Evolution of multi-gene family occurs by (1) only gene duplication. (2) only unequal crossing-over. (3) random mutations. (4) both duplication and unequal crossing over. How Multi-Gene Families Evolve: The […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Why Convergent Evolution Is Most Unlikely for Gene Base Sequences
For which, of the following characters, convergent evolution is most unlikely? (1) Locomotor organs. (2) Secondary metabolites. (3) Conditionally expressed genes. (4) Base sequence of a gene. Why Convergent […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Phylogenetic Species Concept: Defining Species with Morphological and Molecular Evidence
Which species concept utilizes morphological and molecular characters to distinguish between species? (1) Evolutionary (2) Ecological (3) Biological (4) Phylogenetic The Phylogenetic Species Concept: Defining Species with Morphological and […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Gene Cluster Evolution: Why Exon Shuffling Alone Can’t Explain Mayfair Gene Patterns
Mayfair genes (HYPOTHETICAL) consist of a superfamily of transcription factors. They are found in 4 clusters in mammals; in 2 clusters in insects; and in a single cluster in an […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Biased Gene Conversion: Myths and Facts About Its Role in Genome Evolution
Biased gene conversion (BGC) has been proposed to cause changes in allele frequencies in a population. Select the statement that is NOT correct about BGC. (1) BGC is present in […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Gene Duplication Dynamics: Understanding the Fate of Duplicated Genes in Genome Evolution
27. Given below are graphs depicting two possible dynamics of gene duplication events over a period of time during genome evolution. Based on the above figures, which one of the […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Paralogs and Orthologs: Decoding Gene Duplication and Divergence in Evolution
The figure below shows a gene duplication event followed by a divergence event in species 1 and 2. Based on the details given above determine what is represented […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Why Ribosomal RNA Sequencing Is the Gold Standard for Phylogenetic Analysis
The most commonly used molecular tool for phylogentic analysis involves sequencing of (1) mitochondrial DNA. (2) mitochondrial RNA. (3) ribosomal RNA. (4) nuclear DNA. Why Ribosomal RNA Sequencing Is […]
