What is the 1st 2nd 3rd 4th 5th 6th and 7th layers of the inside of a leaf? plz asap

What must happen before meiosis can begin? a. four gametes must be produced b. the four tetrads must be pulled apart c. dna doubles and produces sister chromatids d. the cell membrane pinches together

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds? first generation y y y yy yy y yy yy second generation y y y yy yy y yy yy there is a % chance that the offspring will have green seeds.

The mixture of sperm and fluids from the seminal vesicles, prostate gland, and cowper's glands is called