When all individuals in a population with a certain illness have the same mutation, which present-day patients inherited from shared ancestors, it is an evidence of
A) random mating.
B) migration.
C) population bottlenecks.
D) founder effect.
D) founder effect.
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These are cell adhesion proteins that some cells use in the process of differentiation during development.
A. Cadherins B. Glycospheres C. Receptors D. Phospholipids
The different seasons of the year are due to the
A. tilt of Earth's axis as it travels around the sun. B. distance from Earth to the sun. C. rotation of Earth on its axis. D. rotation of the moon around Earth. E. gravitational pull of the moon as it travels around Earth.
ATP is a good energy carrier because
1.of the presence of a 5 carbon sugar. 2.of the presence of a nitrogenous base. 3.the three phosphate groups repel each other. 4.it is very stable. 5.adenine is its nitrogenous base.
Genetic information is passed from one generation to the next through
A. gametes. B. asexual reproduction. C. sexual reproduction. D. DNA. E. All answers are correct.