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#Question id: 12576
#Unit 10. Ecological Principles
Estimates of current rates of extinction
TLS Online TPP Program
#Question id: 11471
#Unit 7. System Physiology – Animal
Hair cells in the vertebrate ear are responsible for transducing sound pressure waves. Ion channels in the hair cell membrane open when ________.
TLS Online TPP Program
#Question id: 23241
#Unit 2. Cellular Organization
Volutin is an inclusion body represents what kind of reserve?
TLS Online TPP Program
#Question id: 5069
#Unit 5. Developmental Biology
The central player in the “canonical” Wnt intracellular signal transduction pathway is called β-catenin in vertebrates and in Drosophila (the homolog of b-catenin):
TLS Online TPP Program
#Question id: 15193
#Unit 8. Inheritance Biology
Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, ca and ck. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.
would mate the true-breeding ca ca hamsters to the true-breeding ck ck hamsters to produce heterozygous ca and ck F1 progeny. Crosses and their interpretation that would have allowed geneticists to come to the conclusion that ca and ck were likely to be alleles of the same using the concept that alleles of the same gene will be tightly linked. What will be the ratio of F2 hamster;