#Question id: 4891
#Unit 8. Inheritance Biology
plantlike organism on the planet Pandora can have three recessive genetic traits: bluish leaves, due to an allele (a) of gene A; a feathered stem, due to an allele (b) of gene B; and hollow roots due to an allele (c) of gene C. The three genes are linked and recombine. A geneticist performed a testcross with an organism that had been found to be heterozygous for the three recessive traits, and she was able to identify progeny of the following phenotypic distribution (+ = wild type):
A) Genes are in the order: a-c-b
B) Genes are in the order: a-b-c.
C) Genes are in the order: b-a-c
D) Interference is one
E) Greatest distance between gene a and b
#Question id: 13146
#Unit 8. Inheritance Biology
#Question id: 5543
#Unit 5. Developmental Biology
What is the purpose of the chorion in terrestrial vertebrate embryos?
#Question id: 1389
#Unit 4. Cell Communication and Cell Signaling
Why has C. elegans proven to be a useful model for understanding apoptosis?
#Question id: 10927
#Unit 7. System Physiology – Animal
A 62-year-old female arrives for her annual physical. She complains of itching in her hands along with headaches and vertigo. A routine complete blood count (CBC) shows red blood cells (RBCs) of 8.2 million/μl, white blood cells (WBCs) 37,000/μl, and platelets 640,000/μl. Her erythropoietin levels are lower than normal. The primary diagnosis would be