Although many scientists contributed to our modern understanding of DNA, it was James Watson and Francis Crick who are most noted for their discovery that A.
DNA is shaped like a double helix.
B.
A always pairs with U in RNA
C.
The quantity of A always equaled the quantity of T and the quantity of C always equaled the quantity of G.
D.
DNA is single stranded.

1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)

The table above shows five different types of chromosomal abnormalities that can occur during meiosis. they result in either an individual having too many or too few chromosomes in their genome. what is the most likely cause of these chromosomal abnormalities?

What type of tree is the tallest tree in the world?