Click on the image the question on in the image

1. This image shows crossing over of chromosomes.

2. First pair of chromosomes on left is called homologous chromosomes.

3. Crossing over takes place in pachytene stage of prophase I in meiosis.

4. In human egg cell XX while in human sperm cell XY.

Hope this helps you.

chlorophyll a: this is the most abundant pigment in plants. chlorophyll a absorbs light with wavelengths of 430nm(blue) and 662nm(red). it reflects green light strongly so it appears green to us.