PLEASE SAVE M Which of the following best describes how crossing over occurs during meiosis?
A) During prophase I, homologous chromosomes are lined up and pulled apart to opposite poles.
B) During prophase II, chromosomes overlap and sections of each chromosome switch places.

C) During prophase I, segments of chromatids are exchanged between homologous chromosomes.

D) During prophase II, sister chromatids trade places with each other before metaphase begins.

(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Which of the following is a common response to cell signaling?