Conservation biologists working with the Florida pantherhave set out camera traps to estimate the overall population.Through a combination of live trapping and hair snares, thebiologists have worked out the exact genetics for two alleles inall remaining individuals. The homozygous recessive state causes adebilitating disease and the panthers die before reproducing.Biologists have found a high incidence of heterozygous individuals.Help the biologists determine the best conservation action in orderto protect and boost the genetic health of the remainingpopulation. The current population of Florida panthers inthis example is twenty which is based upon available habitat. Eighteen of the panthers are heterozygous [Aa]. Scientistshave determined that eighteen is the minimum viable population forthe Florida panthers.
a. If eighteen of the panthers are heterozygous and ifhomozygous recessive individuals die before reproducing, what isthe genotype for the remaining two panthers?
AA Homozygous
b. Using the Hardy – Weinberg equations, determine thefrequencies of the dominant and recessive alleles.
c. This population of panthers reproduces and theresulting population is also twenty individuals. Based on theallele frequencies calculated in part b, calculate the genotypicfrequencies for the homozygous dominant genotype, heterozygousgenotype, and homozygous recessive genotype.
d. How many of the twenty panthers in this generationwill suffer from the disease and die?
e. What is the number of survivable Floridapanthers?
Question 14
The recessive allele mentioned in Question 13 is foundonly in the Florida panther population. The Texas panthers donot suffer from this disease. Scientists would like tointroduce a number of Texas panthers into Florida to help boost thegenetic health of the Florida panthers. Based on the dataabove, what is the minimum number of homozygous dominant TexasPanthers that would need to be introduced into the Floridapopulation?
Please answer both 13 and 14
Conservation biologists working with the Florida panther have set out camera traps to estimate the overall population. T
-
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am