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Help with genetics/evolution questions please!?
THIS IS NOT HOMEWORK - THIS IS A REVIEW!!
In a population of dogs, the mean head width is 10 cm. You decide that only
dogs on the upper end of the population with a mean head size of 15 cm are
allowed to breed.
What is the selection differential?
Next, you allow only those dogs from the upper end of the distribution with a
mean of 15 cm to breed and their babies, when they grow up show a mean head
size of 12 cm.
What is the response to selection?
Give this, what is the narrow sense heritability of the trait?
Please help me better understand this - it's for an exam. Thank you so much - I appreciate your time!
1 Answer
- ?Lv 78 years agoFavorite Answer
This is an example of adaptation or micro-evolution.
The selection differential is the width of the head.
The response to selection is that the average head size has increased.
