Altruism describes a behaviour performed by animals that may be disadvantageous to self while benefitting others. Which one of the following statements is INCORRECT about altruism? (1) It is the […]
Tag: CSIR NET Life Science Previous Year Questions and Solution on Brain
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CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
Behavioral Acts and Fitness Consequences: Understanding How Actions Impact Evolutionary Fitness
Individual A performs to another individual a behavioral act which has a fitness consequence. Match the behavioral acts (a to e) with the correct fitness consequence (i) to (iv) (1) […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
How Multiple Mating Lowers Genetic Relatedness in Hymenoptera: The Case of Honey Bees
In hymenoptera insects, males are haploid and females are diploid. All fertilized eggs give rise to female and unfertilized eggs give rise to males. As a result, if a female […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
The Genetic Foundations of Advanced Social Behavior: Why Relatedness Matters More Than Brain Size
The development of advanced social behavior is related to (1) Complex Brain size (2) Genetic relatedness (3) Size of population (4) Size of organism  What Drives Advanced Social Behavior? […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
Eusociality in Ants and Bees: Understanding the Ultimate Social Structure
Ants and bees social structure include queen, sterile female workers and soldier drones. This is best example of (1) Eusociality (2) Sub-social (3) Group selection (4) Altruism  What Is […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
Parthenogenesis in Honey Bees: Who Would Offspring Resemble If Workers Reproduced Asexually?
In honey bee males are developed parthenogenetically while workers are developed as sexual reproduction. The workers exhibits more similarity among themselves as compare to queen. If workers starts giving organisms […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
Genetic Relatedness in Honey Bees: How Multiple Fathers Shape Colony Diversity
In honey bee queen and workers are diploid while male are haploid. If a queen honey bee is fertilized with equal number of sperms from two different males, then genetic […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
Why Honey Bees Share More Genes with Sisters Than Daughters: The Role of Haplodiploidy
Honey bee shares more its genes with sister (75%) as compare to its daughter (50%) due to (1) Eusocialbilty (2) Kin selection (3) Haploidy diploidy sex determination system (4) Parthenogensis […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
What Eusocial Societies Are—and Are Not: Understanding Reproductive Roles in Social Insects
Eusocial societies are NOT characterized by which of the following? (1) Altruism (2) Kin selection (3) Guarding against intruders                          (4) Equal reproductive opportunities  Core Characteristics of Eusocial Societies […]
CSIR NET Life Science Previous Year Questions and Solution on Brain, Behavior and Evolution
Haplodiploidy and Genetic Relatedness: Why Eusocial Insect Sisters Are Closer Than Offspring
In eusocial insects, males develop from unfertilized eggs while females develop from fertilized eggs. The ultimate consequence of this difference is that (1) in any colony there are always more […]
