Plz help, tysm! How does crossing-over result in genetic recombination?

O It reduces the original cell's chromosome number by half.

O It mixes half the maternal chromosomes with half the paternal chromosomes.

O It permits the exchange of genetic material between homologous chromosomes.

O It randomly separates the maternal and paternal chromosomes.

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

What characteristic make legumes a good food source for food insecure populations