what is not true about hybrids between polar bears and grizzly bears in the wild (select all that apply) A. polar bear grizzly bear hybrids are still rare but are becoming more common b. polar bears are endangered and hybridization is thought to be a mechanism for their survival by adapting with grizzyly bear traits c. Climate change is causing grizzly and polar bears hybrids d. hybrids polar bears do not exist

what is not true about hybrids between polar bears and grizzly bears in the wild (select all that apply) A. polar bear grizzly bear hybrids are still rare but are becoming more common b. polar bears are endangered and hybridization is thought to be a mechanism for their survival by adapting with grizzyly bear traits c. Climate change is causing grizzly and polar bears hybrids d. hybrids polar bears do not exist

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An Illustrated Guide To Vet Med Term

4th Edition

ISBN:9781305465763

Author:ROMICH

Publisher:ROMICH

Chapter20: Make Room For The Ruminants

Section: Chapter Questions

Problem 18MC

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PLEASE ANSWER THE QUESTION AND EXPLAIN SUCCINTLY IN 2 SENTENCES Why does inbreeding lead to an increase in recessive deleterious traits (for example inbreeding depression)?
A mountain region has a population of 5,000 mountain goats. You score these animals for the R locus and find that this locus has two alleles, R (dominant) and r (recessive). 3200 individuals are homozygous dominant, 1,600 are heterozygous, and 200 are homozygous recessive. a) Calculate the allele frequencies for this population. Show your work. b) Calculate the observed genotypic frequencies for this population. Show your work. c) Calculate the expected genotype frequencies if the population is in Hardy-Weinberg equilibrium. Show your work. d) Does this population appear to be at H-W equilibrium? Why or why not? (You do not need to analyze this statistically).
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You are working with a new species of spider in the lab. Wild type spiders have black legs and long mandibles. Mutants have black/brown striped legs and short mandibles. You perform a cross between wild type and mutant spiders. Your results : 5,502 wild type; 5,877 mutant; 69 black/brown striped, long mandibles; 52 black, short mandibles. What information does the recombination frequency tell you about the traits? (You will need to solve the RF first if you haven't done so in the other problem.) * A. Crossing over occurs frequently between the two traits. B. They are unlinked genes. C. They are located on separate chromosomes D. They are located very close together on the same chromosome.
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