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TLS Online TPP Program
#Question id: 3464
#Unit 11. Evolution and Behavior
Adult male humans generally have deeper voices than do adult female humans, which is the direct result of higher levels of testosterone causing growth of the larynx. If the fossil records ofapes and humans alike show a trend toward decreasing larynx size in adult females and increasing larynx size in adult males, then
TLS Online TPP Program
#Question id: 28648
#Unit 2. Cellular Organization
Which of the following are the MCM helicase loading factors?
TLS Online TPP Program
#Question id: 19460
#Unit 13. Methods in Biology
In phase contrast unobstructed light passes through a region of________ that both transmits only a small percentage of the light and changes its phase slightly.
TLS Online TPP Program
#Question id: 15836
#Unit 8. Inheritance Biology
You are interested in a new type of autosomal dominant mutation that gives purple eyes in Drosophila. You have a true-breeding purple-eyed line carrying a mutation that you call pr-1. You have isolated a second purple-eyed mutation that you call pr-2, which you have established in a true-breeding line that also carries a recessive marker st, which gives stubby legs. You cross a fly from the pr-1 line to a fly from the st, pr-2 line producing F1 females which you then cross to males from a true breeding st line (normal eyes). From this cross, 1000 progeny flies can be categorized into four different phenotypic classes:
What is the phenotype of a pr-1 pr-2 double mutant?
TLS Online TPP Program
#Question id: 21811
#Unit 12. Applied Biology
Which one of the following is a type of transducer?
1. Potentiometer
2. Thermistor
3. Gyroscope
Which of the following are incorrect?