100% CORRECT ANSWERS
ANSC 4395 Exam 3
what is a simply inherited trait
trait affected by one or only a few genes
what is a polygenic trait
trait controlled by two or more genes
polygenic traits are described as...
numbers
polygenic traits are greatly influenced by.....
environment
-Lack of feed
-Heat/cold stress
-Training of quarter horses (speed)
the more genes involved the ______ it is to determine their effects
harder
what are test matings
mating designed to reveal the genotype of an individual for a small number of loci (designed to
reveal the genotype of a simply inherited trait)
what are the three types of test matings?
mating to recessive
mating to heterozygous
mating a sire to daugthers
the probability of a heterozygous male having normal offspring.......
diminishes rapidly as the number of mating increases
, statistics
estimate of a paramater
paramater
a value that describes a population
population
all the members of a group
sample
subject of a popualtion
discrete variables
have distinct values
continuous variables
for any two values; there is a possible intermediate value
measure of central tendency
mean/average
what are the two basic types of statistics
measure of central tendency and measure of variability
what is median
number in the middle
what is mode
most frequent value
what is standard deviation
a measure of how widely distributed the observations are around the mean
what is variance
the square of the standard deviation
what is the coefficient of variation
the standard deviation as a percentage of the mean