BIOC54H3 : Lecture 1-9 material

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rosedonkey571

20 Apr 2011

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When trying to understand the behavior of a species, it is important to make hypotheses, then predictions of the expected results should your hypothesis be correct. Questions need to be answered in terms of fitness and lifetime reproductive success: fitness , lifetime reproductive success. Everything is driven by costs and benefits to the individual. Costs and benefits to the individual along with the effects to its offspring. Lecture 2 development and genetics of behaviour. Can be measured as discrete or quantitatively for example numbers of individuals who possess the trait. Continuous or qualitatively for example eye colour of individuals, measured on a continuous scale. Traits can be seen as a being heritable if: there is a genetic basis of behavior, if there is variation for that trait in a population, and the trait allows for an increase in fitness. Remember* that just because you have the gene for a certain trait does not mean that it will be manifested.

Related Questions

Behavioral Genetics

You are a marine biologist raising a captive colony of a species of squid (Calamari deliciosi frittata). These squid reproduce readily in captivity, and do so quickly: females lay clutches of 50 eggs on average, and it takes only 3 weeks for offspring to reach reproductive age. The squid are marked for individual recognition with numbered tags. When you enter the laboratory where the squid tank is held, you note that some of the individuals consistently flee to the far side of the tank, while others approach you. You become interested in exploring the genetic basis of the behavioral differences you observe.

3A) Develop a set of hypotheses and predictions for the genetic basis of the behavioral differences you observed. Your hypotheses should match with the behavioral data you collected. Think about the kind of behavioral differences you observed, and the kind of genetic mechanisms you would expect to control those differences.

3B) Design a study that would test your behavioral genetic hypotheses. You can assume that both male and female squid are found in both behavioral groups

cyanspider759

Construct an example experiment with methods and expectedresults to test darwins postulates based on an observed variationof brown spots on only some individuals within a population. Usebreeding studies in detail ( I.E. common ground, recipricaltransplant, cross-fostering). This experient must showheritability, variation in reproductive fitness, and how thisvariation is correlated with reproductive fitness.

Include example sample data if possible.

pucehornet651

1. Traits don't necessarily have to be passed on from parent to offspring for natural selection to act on them; traits that are environmentally acquired during the life time of an individual (such as practicing to become very strong or very fast) can also be acted upon by natural selection. Select one: True or False

2.Within the same species and even within the same population, not all individuals are the same. They vary in size, shape or other traits.

Select one:

True

False

3.Differential reproductive success means that some individuals in a population leave more offspring that survive and reproduce relative to other individuals in a population.

Select one:

True

False

coraldolphin670

BIOC54H3 : Lecture 1-9 material

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