After looking at the karyotypes (chromosomes) of Sam and Chris (shown on diagrams), Bobbie claims that it is possible for the sex of Alex and Pat to be male. Evaluate the validity of Bobbie's claim for both Alex and Pat, using the diagrams
to justify your answers.

1) Alex can/cannot be male because..

2) pat can/cannot be male because..

How is the motion of the particles of water at 80 ⁰c different from the motion of the particles of water when it is 30 ⁰c?

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth