In the haplodiploid system of sex determination in honey bees: a. homozygosity at the csd locus results in male-specific mRNA from the fem and Am-dsx genes, ultimately resulting in the development of an inviable diploid drone. b. the csd gene codes for CSD proteins, which splice the mRNA from the hunchback and gurken genes into female specific RNAs that code for female specific proteins. c. heterozygosity at the csd locus results in mRNA from the fem gene being spliced into femF which is transcribed into active FEM proteins that establish a positive feedback splicing loop that contributes to the development of a diploid female. d. heterozygosity for the Am-dsx gene results in mRNAs that ultimately contribute to the development of an aggressive, dominant queen, whereas homozygosity for the Am-dsx gene results mRNAs that contribute to the development of a subordinate, non-aggressive sterile worker. e. all of these are correct f. a & c g. b & d
In the haplodiploid system of sex determination in honey bees: a. homozygosity at the csd locus results in male-specific mRNA from the fem and Am-dsx genes, ultimately resulting in the development of an inviable diploid drone. b. the csd gene codes for CSD proteins, which splice the mRNA from the hunchback and gurken genes into female specific RNAs that code for female specific proteins. c. heterozygosity at the csd locus results in mRNA from the fem gene being spliced into femF which is transcribed into active FEM proteins that establish a positive feedback splicing loop that contributes to the development of a diploid female. d. heterozygosity for the Am-dsx gene results in mRNAs that ultimately contribute to the development of an aggressive, dominant queen, whereas homozygosity for the Am-dsx gene results mRNAs that contribute to the development of a subordinate, non-aggressive sterile worker. e. all of these are correct f. a & c g. b & d
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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In the haplodiploid system of sex determination in honey bees:
a. homozygosity at the csd locus results in male-specific mRNA from the fem and Am-dsx genes, ultimately resulting in the development of an inviable diploid drone.
b. the csd gene codes for CSD proteins, which splice the mRNA from the hunchback and gurken genes into female specific RNAs that code for female specific proteins.
c. heterozygosity at the csd locus results in mRNA from the fem gene being spliced into femF which is transcribed into active FEM proteins that establish a positive feedback splicing loop that contributes to the development of a diploid female.
d. heterozygosity for the Am-dsx gene results in mRNAs that ultimately contribute to the development of an aggressive, dominant queen, whereas homozygosity for the Am-dsx gene results mRNAs that contribute to the development of a subordinate, non-aggressive sterile worker.
e. all of these are correct
f. a & c
g. b & d
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